Using the NEXG4506 3406B PEEC Truck Functions ECAP Service Program Module{0781, 0782} Caterpillar

Introduction

The NEXG4506 3406B PEEC Truck Functions Service Program Module (SPM) is a service program used with the 8T8697 Electronic Control Analyzer Programmer (ECAP).

It provides all of the service functions for the 3406B PEEC Truck Engine Control.

Reference: Special Instruction ... SEHS8742, Using the 8T8697 Electronic Control Analyzer Programmer (ECAP)

Reference: Special Instruction ... SEHS8746, Using the 1U5540 Tool Group

Reference: Special Instruction ... SEHS8833, Installing the 7X1180 Internal Expansion Board in the 8T8697 ECAP Service Tool

Reference: Service Manual (Module) ... SENR3479, 3406B PEEC Truck Engine Test Procedures:

* Procedure P-402 ... PEEC Timing Position Sensor Installation and Calibration

* Procedure P-500 ... PEEC Rack Position Sensor Installation and Calibration

* Procedure P-600 ... Boost Pressure Sensor Calibration

Glossary

ACSII

American Standard Code for Information Interchange

CSP

Customer Specified Parameter

CYL

Cylinder

DEG C

Degree Centigrade

DEG F

Degree Fahrenheit

ECM

Electronic Control Module

EPROM

Erasable Programmable Read Only Memory

EUI

Electronic Unit Injector

FRC

Fuel Ratio Control

HG

High Gear

HP

Horsepower

Hz

Cycles per Second

ID

Identification

km/h

Kilometers Per Hour

kPa

Kilopascal

LB FT

Pounds Foot

LCD

Liquid Crystal Display

LG1

Low Gear 1

LG2

Low Gear 2

MAX

Maximum

MIN

Minimum or Minute

MPH

Miles Per Hour

Nm

Newton-Meter

NUM

Number

OCCUR

Occurrence

POS

Position

PPM

Pulse Per Mile

PR

Pressure

PSI

Pounds Per Square Inch

PW

Pulse Width

PWM

Pulse Width Modulated

RAM

Random Access Memory

ROM

Read Only Memory

RPM

Revolutions Per Minute

SPC

Specification (Performance Specification)

S/N

Serial Number

SPD

Speed

SPM

Service Program Module

SW

Switch

TEL

Top Engine RPM Limit

TEMP

Temperature

VSL

Vehicle Speed Limit

%

Percent

Specifications

Service Program Module Version: 1.6

NOTE: The Service Program Module Version number can be displayed by pressing the SHIFT-HELP key after moving cursor to 3406B PEEC Truck Functions in the main menu.

Refer to Available Parameters, in this manual, for a detailed list of available parameters, shown in the following topics:

* Read Parameters* Read and Change Parameters* PEEC Status Parameters.

Features

Read and Change Parameters stored in PEEC.

Display Status of the PEEC System.

Display Diagnostic Message information sent from PEEC.

Monitor the Throttle Position Duty Cycle and Calibrate the Timing, Rack, and Boost Sensors used by PEEC.

3406B PEEC Truck Functions Service Program Module Installation

NOTE: Service Program Modules for use with the 8T8697 Electronic Control Analyzer Programmer (ECAP) are provided through Caterpillar Dealers.

The 8T8697 ECAP will be delivered with utility programs for selecting Metric or English display units and routines for basic communication abilities.

The NEXG4506 3406B PEEC Truck Functions Service Program Module will need to be installed by you before the 8T8697 ECAP can be used with the PEEC engine.

When service program updates occur, you will be able to install them the same way.

1. Remove eight screws (1) holding cover panel (2) and lift out of case (3).

2. Turn cover panel (2) over for access to the program module sockets on component side (4) of the cover panel (2).

3. Locate an empty program module socket U45, U46, or U47 (5).

If you need to remove a program module from one of these sockets, grip it firmly by tabs (6) and lift it out of the socket with a slight rocking motion.

4. Install service program module (7) into an empty socket.

NOTE: If all of these sockets are full a 7X1180 Internal Expansion Board may be installed. This will allow an additional four SPM to be installed in the ECAP.

Refer to SEHS8833, to install the internal expansion board.

NOTE: The program modules and sockets are keyed so that they can only be inserted in the correct position.

5. Reinstall cover panel (2) into case (3) using eight screws (1).

Power and RS-485 Connector

1. Disconnect PEEC data link connector (1) from truck wiring harness (2).

2. Break apart connector (1) and (2) on truck wiring harness, and connect one end (3) of the 8T5275 Cable in-line.

3. Connect the remaining end (4) of the 8T5275 Cable Port #1 on 8T8697 ECAP (5).

RS-232C Printer Connector

The ECAP Port #2 can be used to connect a serial interface printer.

The printer interface provides XON/XOFF software handshake (communication) between the printer and the ECAP.

NOTE: A menu item is provided for printing a list of parameter values. The F6 key can be used to print a copy of the screen display.

Refer to SEHS8742, Using the 8T8697 Electronic Control Analyzer Programmer (ECAP), for the RS-232C Connector Pin definitions.

The default setup, each time the ECAP is activated, for Port #2 is:

Baud rate ... 1200

Parity ... none

Data bits ... 8

Stop bits ... 1

Refer to SEHS8742, Using the 8T8697 Electronic Control Analyzer Programmer (ECAP), for the procedures too change these values.

Using the NEXG4506 3406B PEEC Truck Functions Service Program Module

The 3406B PEEC Truck Service Program provides an easy to use method for reading, changing, and displaying parameters in PEEC.

NOTE: Refer to SEHS8742, if you are not familiar with using the ECAP.

All of the functions related to servicing PEEC are accessed through a series of menu, display, or update routines.

NOTE: The 3406B PEEC Truck Screen Map in this manual, contains a map of the ECAP display screens.

These can be used to find out where you are at any given time and how to review and/or access a specified function.

Main Menu

When power is applied to the ECAP it will first display an identifying title screen.

It will then present the main menu listing all of the major functions provided by the program modules installed.

One of these functions listed will be the 3406B PEEC Truck Service Program.

Select it from the menu list using the UP arrow key, DOWN arrow key, or item number followed by RETURN.

NOTE: If the main menu does not appear refer to SEHS8742, for troubleshooting procedures.

If the main menu appears but the PEEC Service Program is not one of the items, refer to 3406B PEEC Truck Service Program Module Installation, in this manual.

3406B PEEC Truck Functions Menu

This menu provides access to all of the PEEC related functions.

1 - Read/Change Parameters: Functions for reading and/or changing parameters that are stored in PEEC.

2 - Display Status: Functions for displaying the status of the PEEC system.

3 - Display Diagnostic Messages: Functions for displaying diagnostic messages sent from PEEC.

4 - Calibrate/Monitor Sensors: Functions for calibrating and monitoring sensors used by PEEC.

Example

To display the status of PEEC:

Select item 2 - by pressing the DOWN arrow key once or entering 2.

The block cursor will move to item 2 -.

* Confirm your selection by pressing RETURN.

Example

If you want to find out more about a menu item before confirming it:

Press SHIFT-HELP

A help message will appear on the last line.

Read/Change Parameters Menu

This menu provides access to parameters stored in PEEC.

1 - Read Customer Specified Parameters: Functions for reading customer specified parameters from PEEC.

2 - Read/Change Customer Specified Parameters: Functions Functions for reading and/or changing customer specified parameters that are stored in PEEC.

NOTE: Access to this set of functions may be protected by customer passwords.

3 - Read/Change PEEC System Configuration Parameters: Functions for reading and/or changing PEEC system configuration parameters that are stored in PEEC.

4 - Print all Parameters: Function for printing a formatted list of all parameters.

Example

If you wish to read and/or change PEEC system configuration parameters:

Select item 3 - by pressing the DOWN arrow key twice or entering 3.

The block cursor will move to item 3 -.

* Confirm your selection by pressing RETURN.

Read Customer Specified Parameters List

This function displays a list of all of the customer specified parameters.

The list is made up of 39 lines of text with parameters grouped according to function.

The LCD can only display six lines from the list at one time.

To see the other parameters, use the UP arrow and DOWN arrow keys to move up and down through the list.

Each time one of the arrow keys is pressed, the list position is shifted one line.

Parameters which can be changed have a tattletale number following the parameter value on a line.

This number, shown preceded by a #, indicates how many times that parameter has been changed.

Example

To move down the list:

Press the DOWN arrow key (the DOWN arrow key has been pressed five times).

To move back up the list:

Press the UP arrow key (the UP arrow key has been pressed twice).

Read/Change Customer Specified Parameters

Customer Specified Parameters are changed by the owner to set up each PEEC engine for its most efficient use.

Unauthorized access to changing these parameters is prevented by passwords programmed by the owner.

If passwords have been programmed into the PEEC you are servicing, you will need to obtain proper passwords from the owner of the engine.

When you reach the Read/Change Customer Specified Parameters Menu, a PASSWORD PROTECTED message will display on the top line of each Read/Change parameter screen.

If no passwords have been programmed, password validation is skipped and the Read/Change Customer Specified Parameters Menu will appear.

Password Validation

Two passwords (up to eight characters each) can be programmed into PEEC to protect the customer specified parameters.

Each character of the password is displayed on the LCD in reverse screen characters.

Press the RETURN key after entering each password to have it checked.

When the correct passwords have been entered the Read/Change Customer Specified Parameters Menu will appear.

If the passwords are not correct, a message is printed on the LCD and you are given another chance at entering them correctly.

Example

Four characters of the first password have been entered ...

... The passwords entered were incorrect.

Access to changing customer parameters will not be allowed until both passwords are entered correctly.

Read/Change Customer Specified Parameters Menu

This menu provides access to the functions which allow you to read and change customer specified parameters in PEEC.

1 - Engine Power Rating Selection: Function for selecting the engine power rating map code. Various parameters affected by this selection are also shown.

2 - Vehicle ID: Function for reading and changing the vehicle identification.

3 - Vehicle Speed Parameters: Function for reading and changing parameters associated with vehicle speed.

4 - Cruise Control Parameters: Function for reading and changing parameters associated with cruise control.

5 - PTO Governor Parameters: Function for reading and changing parameters associated with the PTO governor.

6 - Engine/Gear Parameters: Function for reading and changing parameters associated with engine RPM limits for specific gear ranges.

7 - Idle Shutdown Time: Function for reading and changing the Idle Shutdown Time.

NOTE: This function is only available on 3406B PEECs with Personality Modules released in 1989 or after. The versions released in 1987 and 1988 do not have this feature.

8 - Customer Passwords: Function for reading and changing customer passwords.

Example

If you wish to change the Engine/Gear RPM limit parameters in PEEC:

Select item 6 - by pressing the DOWN arrow key five times or entering 6.

The block cursor will move to item 6 -.

* Confirm your selection by pressing RETURN.

Engine Power Rating Selection

This function allows you to select the engine power rating map code.

NOTE: The Engine power rating cannot be changed while the engine is running. If the engine is running, you will not be able to access this function.

The current rating map code is shown along with the parameters that are affected by it.

Also shown, is a tattletale number.

This number, shown preceded by a #, indicates how many times that parameter has been changed.

Available power rating parameters may be reviewed. This will allow you to determine the proper power rating for your application, before changing the rating map code used by PEEC.

To view a specific rating map code and its parameters:

Enter the code number followed by pressing RETURN.

Once you view a different rating code than the one stored in PEEC, an additional message is added on the LCD.

This message tells you the current rating map code you are viewing and the one still stored in PEEC.

If you want to change the rating map code stored in PEEC to the one you are currently viewing:

Move the cursor to the Change Rating map code message by pressing the UP arrow key once.

The message will be shown in reverse screen characters.

* Confirm your entry by pressing RETURN.

To insure against accidental programming of parameters in PEEC, you are asked if you want to make the change.

Enter Y or y (for yes) followed by pressing RETURN to make the change.

Press any other key followed by pressing RETURN to cancel the change.

Because changes in engine ratings may affect the operation of other systems on the truck, such as the transmission, radiator, etc., a message is displayed to remind you to check the rating for compatibility with those other systems.

This is only a WARNING message and does NOT indicate any error.

The message will be displayed for at least 10 seconds, after which pressing any key will clear it and restore the original rating selection display.

NOTE: Whenever a rating is changed, the TOP Engine Limit is automatically changed to the maximum RPM value for that rating.

Read/Change Vehicle Identification

This function allows you to read and change the vehicle identification.

The current vehicle identification is shown along with the tattletale number.

This number, shown preceded by a #, indicates how many times that parameter has been changed.

To change the vehicle identification, enter a new identification using the keyboard.

When the first key is pressed, the old identification will be cleared from the LCD.

The new character will take its place.

Continue entering characters until your new identification is complete.

A message will appear on the LCD if you exceed the maximum allowable number of characters.

* Confirm your entry by pressing RETURN.

Entries may be edited before confirmation by pressing the SHIFT-DEL key.

This will clear one character from the end of the entry each time it is pressed.

To insure against accidental programming of parameters in PEEC, you are asked if you want to make the change.

Enter Y or y (for yes) followed by pressing RETURN to make the change.

Press any other key followed by pressing RETURN to cancel the change.

Example

You have begun entering a new vehicle identification and mistakenly pressed two wrong keys:

Press the SHIFT-DEL key twice to clear them from the entry.

You can then continue entering the rest of your new vehicle identification.

Read/Change Vehicle Speed Parameters

This function allows you to read and change parameters affecting vehicle speed.

The current value for the parameters is shown along with the tattletale number.

This number, shown preceded by a #, indicates how many times that parameter has been changed.

To change the value of one of the parameters:

Move to the parameter by pressing the UP or DOWN arrow keys. Then enter a new value.

When the first key is pressed to enter a new value, the old value will be cleared from the LCD.

The first character of the new value will take its place.

Continue entering characters until your new value is complete.

A message will appear on the LCD if you exceed the maximum allowable number of characters.

* Confirm your entry by pressing RETURN.

Entries may be edited before confirmation by pressing the SHIFT-DEL key.

This will clear one character from the end of the entry each time it is presed.

To insure against accidental programming of parameters in PEEC, you are asked if you want to make the change.

Enter Y or y (for yes) followed by pressing RETURN to make the change.

Press any other key followed by pressing RETURN to cancel the change.

Example

If you wish to change the vehicle speed limit from 57 to 56 MPH:

Move to that parameter by pressing the DOWN arrow key once.

Change the value by pressing the 5 key followed by the 6 key.

* Confirm your entry by pressing RETURN.

Press the Y or y key followed by RETURN to indicate that you want to change the vehicle speed parameter.

Read/Change Cruise Control Parameters

This function allows you to read and change parameters affecting the cruise control.

The current value of the parameter is shown along with the tattletale number.

This number, shown preceded by a #, indicates how many times that parameter has been changed.

To change the value of one of the parameters:

Move to the parameter by pressing the UP or DOWN arrow keys.

Enter a new value.

When the first key is pressed to enter a new value, the old value will be cleared from the LCD.

The first character of the new value will take its place.

Continue entering characters until your new value is complete.

A message will appear on the LCD if you exceed the maximum allowable number of characters.

* Confirm your entry by pressing RETURN.

Entries may be edited before confirmation by pressing the SHIFT-DEL key.

This will clear one character from the end of the entry each time it is pressed.

To insure against accidental programming of parameters in PEEC, you are asked if you want to make the change.

Enter Y or y (for yes) followed by pressing RETURN to make the change.

Press any other key followed by pressing RETURN to cancel the change.

Example

If you wish to change the cruise control high speed limit from 56 to 55 MPH:

Move to that parameter by pressing the DOWN arrow key once.

Change the value by pressing the 5 key twice.

* Confirm your entry by pressing RETURN.

Press the Y or y key (for yes) key followed by RETURN to indicate that you want to change the high speed limit.

Read/Change PTO Governor Parameters

This function allows you to read and change parameters affecting the PTO governor.

The current value of the parameter is shown along with the tattletale number.

This number, shown preceded by a #, indicates how many times that parameter has been changed.

To change the value of one of the parameters:

Move to the parameter by pressing the UP or DOWN arrow keys.

Enter a new value.

When the first key is pressed to enter a new value, the old value will be cleared from the LCD.

The first character of the new value will take its place.

Continue entering characters until your new value is complete.

A message will appear on the LCD if you exceed the maximum allowable number of characters.

* Confirm your entry by pressing RETURN.

Entries may be edited before confirmation by pressing the SHIFT-DEL key.

This will clear one character from the end of the entry each time it is pressed.

To insure against accidental programming of parameters in PEEC, you are asked if you want to make the change.

Enter Y or y (for yes) followed by pressing RETURN to make the change.

Press any other key followed by RETURN to cancel the change.

Example

If you wish to change the PTO engine RPM limit from 1500 to 1400 RPM:

Move to that parameter by pressing the DOWN arrow key once.

Change the value by pressing the 1, 4, 0, and 0 keys.

* Confirm your entry by pressing RETURN.

Press the Y or y key (for yes) followed by pressing RETURN to indicate that you want to change the PTO engine RPM parameter.

Read/Change Engine/Gear Parameters

This function allows you to read and change parameters affecting the engine RPM together with several gear range speeds.

The current value of the parameter is shown along with the tattletale number.

This number, shown preceded by a #, indicates how many times that parameter has been changed.

To change the value of one of the parameters:

Move to the parameter by pressing the UP or DOWN arrow keys.

Enter a new value.

When the first key is pressed to enter a new value, the old value will be cleared from the LCD.

The first character of the new value will take its place.

Continue entering characters until your new value is complete.

A message will appear on the LCD if you exceed the maximum allowable number of characters.

* Confirm your entry by pressing RETURN.

Entries may be edited before confirmation by pressing the SHIFT-DEL key.

This will clear one character from the end of the entry each time it is pressed.

To insure against accidental programming of parameters in PEEC, you are asked if you want to make the change.

Enter Y or y key (for yes) followed by pressing RETURN to make the change.

Press any other key followed by RETURN to cancel the change.

Example

If you wish to change the High Gears RPM Turn-On Speed from 48 to 50 MPH:

Move to that parameter by pressing the DOWN arrow key twice and the RIGHT arrow key once.

Change the value by pressing the 5 key followed by the 0 key.

* Confirm your entry by pressing RETURN.

Press the Y or y key (for yes) followed by RETURN to indicate that you want to change the high gears turn-on speed to 50 MPH.

Read/Change Idle Shutdown Time

NOTE: This function is only available on 3406B PEECs with Personality Modules released in 1989 or after. The versions released in 1987 and 1988 do not have this feature.

This function allows you to read and change the Idle Shutdown Timer.

The current value of the parameter is shown along with the tattletale number.

This number, shown preceded by a #, indicates how many times that parameter has been changed.

To change the value of the parameter:

Enter a new value.

When the first key is pressed to enter a new value, the old value will be cleared from the LCD.

The first character of the new value will take its place.

Continue entering characters until your new value is complete.

A message will appear on the LCD if you exceed the maximum allowed number of characters.

* Confirm your entry by pressing RETURN.

Entries may be edited before confirmation by pressing the SHIFT-DEL key.

This will clear one character from the end of the entry each time it is pressed.

To insure against accidental programming of parameters in PEEC, you are asked if you want to make the change.

Enter Y or y (for yes) followed by pressing RETURN to make the change.

Press any other key followed by pressing RETURN to cancel the change.

Example

If you wish to change the idle shutdown timer from 10 minutes to 15 minutes:

Change the value by pressing the 1 and 5 keys.

* Confirm your entry by pressing RETURN.

Press the Y or y key (for yes) followed by RETURN to indicate that you want to change the parameter.

Read/Change Customer Passwords

This function allows you to read and change the customer passwords.

The current value of the parameter is shown along with the tattletale number.

This number, shown preceded by a #, indicates how many times that parameter has been changed.

To change the value of one of the parameters:

Move to the parameter by pressing the UP or DOWN arrow keys.

Enter a new value.

When the first key is pressed to enter a new value, the old value will be cleared from the LCD.

The first character of the new value will take its place.

Continue entering characters until your new value is complete.

A message will appear on the LCD if you exceed the maximum allowed number of characters.

* Confirm your entry by pressing RETURN.

Entries may be edited before confirmation by pressing the SHIFT-DEL key.

This will clear one character from the end of the entry each time it is pressed.

To insure against accidental programming of parameters in PEEC, you are asked if you want to make the change.

Enter Y or y (for yes) followed by pressing RETURN to make the change.

Press any other key followed by RETURN to cancel the change.

Example

If you wish to change the second password from IS NEAT! to Is Best:

Move to that parameter by pressing the DOWN arrow key once.

Change the value by pressing the I, s, (space) B, e, s, and t keys.

* Confirm your entry by pressing RETURN.

Press the Y or y key (for yes) followed by pressing RETURN to indicate that you want to change the second password.

Read/Change PEEC System Configurations Menu

This menu provides access to the functions which allow you to read and change PEEC System Configuration parameters stored in PEEC.

1 - Read PEEC System Configuration Parameters: Function for reading System Configuration Parameters from PEEC.

2 - Read Customer Passwords: Function for reading the customer's passwords.

NOTE: Access to this function is protected by factory specified passwords.

3 - Read/Change PEEC System Configuration Parameters: Function for reading and changing PEEC System Configuration parameters.

NOTE: Access to this function is protected by factory specified passwords.

Example

If you wish to read the customer passwords because you cannot remember what they are:

Select item 2 - by pressing the DOWN arrow key once or by entering 2.

The block cursor will move to item 2 -.

* Confirm your selection by pressing RETURN.

Read PEEC System Configuration Parameters List

This function displays a list of all of the PEEC System Configuration parameters.

The list is made up of 20 lines of text. The LCD can only display six lines from the list at one time.

To see the other parameters:

Use the UP arrow and DOWN arrow keys to move up and down through the list.

Each time one of the arrow keys is pressed, the list position is shifted one line.

Parameters which can be changed have a tattletale number following the parameter value on a line.

This number, shown preceded by a #, indicates how many times that parameter has been changed.

Example

To move down the list:

Press the DOWN arrow key (the DOWN arrow key has been pressed five times).

To move back up the list, press the UP arrow key (the UP arrow key has been pressed twice).

Read Customer Passwords

If the Customer Passwords from a PEEC engine control are lost or forgotten, they can be read using this function.

The Customer Passwords are still protected by a set of factory specified passwords.

Factory Specified Password Validation (For Customer Passwords)

To protect the Customer Passwords from unauthorized access, factory specified passwords are used.

NOTE: Factory specified passwords are obtained by contacting Caterpillar Dealer Marketing, Engine Division, with the following information:

* Engine Serial Number* Electronic Control Module (ECM) Serial Number* Vehicle Identification* Total Tattletale

You will then be provided with a set of two (eight character) passwords that are valid until a parameter is changed in PEEC (indicated by a changed total tattletale number).

When you receive the factory specified passwords, enter them using the keyboard.

Each character of the password is indicated on the LCD in reverse screen characters.

Press the RETURN key after entering each password to have it checked.

When the correct passwords have been entered, you will be able to access the Read Customer Passwords function.

Example

The first password has been entered ...

... The passwords entered were incorrect.

Access to customer passwords will not be allowed until both factory specified passwords are entered correctly.

Read Passwords

This function allows you to read the customer passwords.

This ability is provided for cases where the customers passwords are forgotten or are otherwise not available.

Customer passwords can only be read using this function.

To change them you must use the function Read/Change Customer Passwords in the Read/Change Customer Specified Parameters menu, in this manual.

Read/Change PEEC System Configuration Parameters

PEEC System Configuration Parameters are values which are not changed for normal operation, and should not be changed except when a PEEC engine is re-rated to another HP (horse power) family which requires a different personality module along with other iron changes.

They are protected by a different set of passwords, called factory specified passwords.

Factory Specified Password Validation (For PEEC System Configuration)

To protect the PEEC System Configuration parameters from unauthorized changes, factory specified passwords are used.

NOTE: Factory specified passwords are obtained by contacting Caterpillar Dealer Marketing, Engine Division, with the following information:

* Engine Serial Number* Electronic Control Module (ECM) Serial Number* Vehicle Identification* Total Tattletale

You will then be provided with a set of two (eight character) passwords that are valid until a parameter is changed in PEEC (indicated by a changed total tattletale number).

When you receive the factory specified passwords, enter them using the keyboard.

Each character of the password is indicated on the LCD in reverse screen characters.

Press the RETURN key after entering each password to have it checked.

When the correct passwords have been entered, you will be able to access the Read/Change PEEC System Configuration parameters function.

Example

The first password has been entered ...

... The passwords entered were incorrect.

Access to PEEC System Configuration Parameters will not be allowed until both factory specified passwords are entered correctly.

Read/Change

This function allows you to read and change parameters associated with the configuration of PEEC.

NOTE: PEEC System Configuration Parameters cannot be changed while the engine is running.

If the engine is running, you will not be able to access this function.

The current value for the parameters is shown along with the tattletale number.

This number, shown preceded by a #, indicates how many times that parameter has been changed.

To change the value of one of the parameters:

Move to the parameter by pressing the UP or DOWN arrow keys.

Enter a new value.

When the first key is pressed to enter a new value, the old value will be cleared from the LCD.

The first character of the new value will take its place.

Continue entering characters until your new value is complete.

A message will appear on the LCD if you exceed the maximum allowable number of characters.

* Confirm your entry by pressing RETURN.

Entries may be edited before confirmation by pressing the SHIFT-DEL key which will clear one character from the end of the entry each time it is pressed.

To insure against accidental programming of parameters in 3406B PEEC, you are asked if you want to make the change.

Enter Y or y (for yes) followed by pressing RETURN to make the change.

Press any other key followed by RETURN to cancel the change.

Example

If you wish to change the full torque setting from 10 to 4:

Move to that parameter by pressing the DOWN arrow key once.

Change the value by pressing the 4 key.

* Confirm your entry by pressing RETURN.

Press the Y or y key (for yes) followed by pressing RETURN to indicate that you really wanted to change the full torque setting to 4.

Print All Parameters

This function allows you to print all of the customer specified and PEEC system configuration parameters.

The parameters are listed in a format similar to the Read Customer Specified Parameters List functions, in this publication.

Follow the steps as shown in RS-232C Printer Connector, in this publication, to connect your printer to the ECAP.

You can stop the printing of the parameter list at any time by pressing any key on the keyboard.

Display Status

This function displays the status of various parameters in the PEEC system.

Parameters in the display are continually updated and are arranged on the LCD in a format called a screen.

Each parameter has a label to identify it and a value displayed under the label.

For convenience, three of the six available screens have been predefined with all of the available PEEC status parameters.

To view parameters on different screens:

* Enter the desired screen number using the numeric keys ... or* Use the Up and Down-arrow keys to increment and decrement the screen number by one.

Included on both sides of the top line of the LCD are two special status areas. Messages will appear in reverse screen characters for the following conditions:

The left side of the screen will display ENGINE SHUTDOWN, TOP ENGINE RPM LIMIT, COLD MODE or VEHICLE SPEED LIMIT.

The right side of the screen will display LOW OIL PRESSURE.

Example

If you want to view screen 2, press the Down-arrow once or enter 2.

Change Display Layout

This function allows you to change the display layout if you do not like the predefined screens provided for you.

Any changes made to the display layout of the six status screens are automatically stored in ECAP memory.

* The changes are retained even if you exit the function or remove power from the ECAP.* The changes are also automatically recalled from ECAP memory each time the PEEC functions are used.

To access this function:

Enter a C while in the Display Status function.

Three areas of the LCD are used to change the display layout.

NOTE: The area you are working in is indicated by reverse screen characters.

When you first enter the function, you will be in the Parameter Location area of screen one.

Parameter Location

To define parameter locations:

Select the Parameter Location area by pressing the P or p key.

The current parameter will be highlighted by reverse screen characters.

Use the arrow keys to move to the location where you want a specific parameter to be displayed.

A parameter is chosen by entering the number for the parameter from the Labels of available parameters area of the LCD.

The previous label is cleared and the number you entered will take its place.

* Confirm your choice by pressing RETURN.

The number will be replaced by the new label.

Label number entries may be edited prior to confirmation by pressing the SHIFT-DEL key.

This will clear one digit from the end of the number each time it is pressed.

Label numbers can be changed as often as you like.

Example

If you want the current location to be blank:

Press the 1 key.

* Confirm your entry by pressing RETURN.

Screen Number Selection

To access a different screen and change its layout:

Select the Screen Number Selection area by pressing the S or s key.

The screen number selection area will be highlighted by reverse screen characters.

Enter the screen number (1-6), or use the DOWN arrow key to get to the next screen number, or use the UP arrow key to get to the previous screen number.

Example

If you want to view screen 2, press the DOWN arrow key once or enter 2.

Labels of Available Parameters

Labels of parameters available for display are listed in the Labels of available parameters area of the LCD.

To access the label list and find a parameter label that is not currently shown:

Select the Labels of available parameters area by entering L or l.

The Labels of available parameters area will be highlighted by reverse screen characters.

The list of labels is made up of 7 lines of labels, 4 to a line.

Two lines from the list can be shown on the LCD at a time.

To see other labels:

Use the UP arrow and DOWN arrow keys to move up and down through the list.

Each time one of the arrow keys is pressed, the list position is shifted one line.

Example

If you want to see other labels in the list:

Press the DOWN arrow key to move your position in the list down by one line.

Display Diagnostic Messages Menu

This menu provides access to functions for displaying diagnostic messages received from PEEC.

This menu will have different contents depending upon the version of PEEC connected to the ECAP to reflect the different capabilities of each version.

PEEC engines with Personality Modules released after May 1989:

* Include the ability to store the logged diagnostic message codes permanently.

PEEC engines with Personality Modules released in early 1989:

* Will only store diagnostic message codes until the engine is shut off.

PEEC engines with personality modules released during 1987 and 1988:

* Require an ECAP to be connected and running the NEXG4506 3406B PEEC Truck Functions Service Program Module to have intermittent diagnostic message codes logged.

PEEC Engines With Personality Modules Released After May 1989

1 - Display Current Diagnostic Messages: Function for displaying diagnostic messages sent from PEEC.

Messages are updated as they are received.

2 - Display/Clear Logged Diagnostic Messages: Function for displaying and clearing diagnostic messages in logged PEEC.

NOTE: The messages are logged by the PEEC engine and are retained by it until cleared by a Caterpillar service tool.

Example

To display logged diagnostic messages:

Select item 2 - by pressing the DOWN arrow key once or entering 2.

The block cursor will move to item 2 -.

* Confirm your selection by pressing RETURN.

PEEC Engines With Personality Modules Released Between January and April 1989

1 - Display Current Diagnostic Messages: Function for displaying diagnostic messages sent from PEEC.

Messages are updated as they are received.

2 - Display Logged Diagnostic Messages: Function for displaying diagnostic messages in logged PEEC.

The messages are logged by the PEEC engine and are retained by it until the engine is powered down.

PEEC Engines With Personality Modules Released During 1987 and 1988

1 - Display Current Diagnostic Messages: Function for displaying diagnostic messages sent from PEEC.

Messages are updated as they are received.

2 - Display/Clear Logged Diagnostic Messages: Function for displaying logged diagnostic messages.

The messages are logged when the PEEC Service Program is started and are retained until it is exited or the logged message list is reset (refer to item 3 below).

3 - Reset Logged Diagnostic Message List: Selecting this item resets the list of logged diagnostic messages sent from PEEC.

Display Current Diagnostic Messages

This function is used to display current diagnostic messages as they are sent from PEEC.

With this function, diagnostic messages will appear when a fault or other problem occurs with the PEEC.

The messages will disappear when they have been corrected.

NOTE: In this function ONLY, the diagnostic message, 56 - Check Customer or System Parameters, will display the name of any parameter which has a programming fault.

The Display Logged Diagnostic Messages function will only display the diagnostic message itself and NOT the parameter name.

Included on both sides of the top line of the LCD are two special status areas. Messages will appear in reverse screen characters for the following conditions:

The left side of the screen will display ENGINE SHUTDOWN, TOP ENGINE RPM LIMIT or VEHICLE SPEED LIMIT.

The right side of the screen will display LOW OIL PRESSURE.

Six messages can appear on the LCD at one time.

If more than six messages are received:

Use the UP arrow and DOWN arrow keys to move up and down through the list.

Each time one of the arrow keys is pressed, the list position is shifted one line.

Example

To move down the list:

Press the DOWN arrow (the DOWN arrow key has been pressed five times).

To move back up the list:

Press the UP arrow key (the UP arrow key has been pressed twice).

Display/Clear Logged Diagnostic Messages (May 1989 PEEC and Later)

This function is used to display and clear diagnostic message information logged by PEECs with permanent diagnostic logging capability.

The diagnostic information is arranged in a list on the LCD.

The diagnostic code number as well as the message text is displayed similarly to the Current Diagnostic Message function.

In addition, the number of occurrences and diagnostic clock reading for first and last occurrence are displayed.

If the fault is still occurring, the ACTIVE is added to the end of the line for that diagnostic message.

Diagnostic messages are cleared one at a time from PEEC memory so that as faults are corrected they may be removed from the list.

The message selected for clearing is indicated by reverse screen characters in the diagnostic code and message text.

Use the UP and DOWN arrow keys to move through the list of messages.

Here the DOWN arrow key has been pressed two times.

Press RETURN to clear the selected message.

Password Validation

If the selected diagnostic message is protected by passwords, a password entry screen will be displayed.

Diagnostic messages are categorized such that diagnostics about the control system itself have no password protection.

* Diagnostic messages dealing with improper operation of the engine/truck require customer passwords so that the owner of the truck can be sure that the event is secure.

Press PREVIOUS SCREEN or MAIN MENU keys to exit the password entry screen without clearing the diagnostic message.

* Diagnostic messages dealing with abuse or tampering of the PEEC system require Caterpillar factory level passwords so that a Caterpillar dealer is properly informed.

Press PREVIOUS SCREEN or MAIN MENU keys to exit the password entry screen without clearing the diagnostic message.

* If no passwords are needed or the passwords have been properly entered, the selected diagnostic message is cleared in PEEC and is removed from the display list.

Once the appropriate passwords have been entered other diagnostic messages with the same password protection level or lower can be cleared without re-entering passwords until the Display/Clear Logged Diagnostic Messages function is exited.

Six messages can appear on the LCD at one time.

If more than six messages are received:

Use the UP arrow and DOWN arrow keys to move up and down through the list.

Each time one of the arrow keys is pressed, the list position is shifted one line.

NOTE: Because of the nature and usage of this function:

* If the diagnostic message 56 - Check Customer or System Parameters occurs, only the diagnostic message itself and NOT the name of the parameter which has a programming fault are displayed here.

Refer to Display Current Diagnostic Messages, in this publication, for viewing the parameter name when diagnostic message 56 is active.

Display Logged Diagnostic Messages (1987 - Early 1989)

1989 PEEC

This function is used to display diagnostic message information logged by PEEC with power-on diagnostic logging capability.

The diagnostic information is arranged in a list on the LCD.

The diagnostic code number as well as the message text is displayed similarly to the Current Diagnostic Message function.

In addition, the number of occurrences is displayed and if the fault is still occuring, the word ACTIVE is added to the end of the line for that diagnostic message.

With this function, intermittent diagnostic messages which have been recorded by PEEC while the engine is running can be displayed.

Six messages can appear on the LCD at one time.

If more than six messages are received:

Use the UP arrow and DOWN arrow keys to move up and down through the list.

Each time one of the arrow keys is pressed, the list position is shifted one line.

Example

To move down the list:

Press the DOWN arrow key (the DOWN arrow key has been pressed five times).

To move back up the list:

Press the UP arrow key (the UP arrow key has been pressed twice).

NOTE: Because of the nature and usage of this function:

* If the diagnostic message 56 - Check Customer or System Parameters occurs, only the diagnostic message itself and NOT the name of the parameter which has a programming fault are displayed here.

Refer to Display Current Diagnostic Messages, in this publication, for viewing the parameter name when diagnostic message 56 is active.

PEEC Engines With Personality Modules Released During 1987 and 1988

This function is used to display diagnostic messages logged by ECAP as they are sent from PEECs with no diagnostic logging capability of their own.

These messages are sent to the ECAP as code numbers.

When a code number is received, it is stored in a diagnostic table.

When this function is entered, the diagnostic message is displayed on the LCD.

If PEEC is still sending the code numbers, the message ACTIVE is added to the end of the message text.

Messages are displayed in the order they are received.

The messages are logged when the PEEC Service Program is started and are retained until it is exited (you return to the Main Menu) or the logged message list is reset.

Refer to Reset Logged Diagnostic Message List, in this publication.

With this function, intermittent diagnostic messages which have been recorded while using the PEEC Service Program can be displayed.

Included on both sides of the top line of the LCD are two special status areas. Messages will appear in reverse screen characters for the following conditions:

The left side of the screen will display ENGINE SHUTDOWN, TOP ENGINE RPM LIMIT or VEHICLE SPEED LIMIT.

The right side of the screen will display LOW OIL PRESSURE.

Six messages can appear on the LCD at one time.

If more than six messages are received:

Use the UP arrow and DOWN arrow keys to move up and down through the list.

Each time one of the arrow keys is pressed, the list position is shifted one line.

NOTE: Because of the nature and usage of this function:

* If the diagnostic message 56 - Check Customer or System Parameters occurs, only the diagnostic message itself and NOT the name of the parameter which has a programming fault are displayed here.

Refer to Display Current Diagnostic Messages, in this manual, for viewing the parameter name when the diagnostic message 56 is active.

Reset Logged Diagnostic Message List (1987 - 1988)

NOTE: This function is only available when the ECAP is connected to a 3406B PEEC with a Personality Module released in 1987 or 1988.

Versions released in 1989 or after do not need this feature.

This function is used to clear the list of logged diagnostic messages sent from PEEC.

Logged Diagnostic messages are displayed using the Display Logged Diagnostic Messages function.

Example

To reset the list of diagnostic messages that have been received:

Select item 3 - by pressing the DOWN arrow key twice or entering 3.

The block cursor will move to item 3 -.

* Confirm your selection by pressing RETURN.

Calibrate/Monitor Sensors Menu

This menu provides access to functions for calibrating or monitoring sensors used by PEEC.

NOTE: Refer to SEHS8746 and SENR3479, for the precalibration procedures needed for each specific sensor, before accessing any calibrate function from this menu.

1 - Calibrate Timing Sensor: Function for calibrating the Timing Sensor used by PEEC.

2 - Calibrate Rack Sensor: Function for calibrating the Rack Sensor used by PEEC.

3 - Calibrate Boost Sensor: Function for calibrating the Boost Sensor used by PEEC.

4 - Monitor Throttle Position Sensor Signal: Function for monitoring the throttle position duty cycle.

NOTE: If the engine is running, you will not be able to access any of the Calibrate Sensors functions.

Example

To Calibrate Boost Sensor:

Select item 3 - by pressing the DOWN arrow key twice or entering 3.

The block cursor will move to item 3 -.

* Confirm your selection by pressing RETURN.

Calibrate Timing Sensor

This function is used to calibrate the timing sensor used on a 3406B (PEEC) engine.

NOTE: The engine timing sensor must be set to a required position before the Calibrate Timing Sensor function can be used correctly.

Refer to SEHS8746.

When this function is accessed, the PEEC is placed into the calibration mode and sends calibration error values to the ECAP.

If there is no error in timing calibration:

CALIBRATED! is displayed on the LCD.

If there is a calibration error:

A bar graph showing the relative amount of calibration error and the direction to turn the sensor, for calibration, is displayed.

Example

If calibration error is above the calibration point:

The bar graph will appear on the left side of the center calibration mark and you will be instructed to Turn Sensor Adjustment In.

If calibration error is below the calibration point:

The bar graph will appear on the right side of the center calibration mark and you will be instructed to Turn Sensor Adjustment Out.

Calibrate Rack Sensor

This function is used to calibrate the rack sensor used on a 3406B PEEC engine.

NOTE: A Zero (0) rack position must be set before the Calibrate Rack Sensor function can be used correctly.

Refer to SEHS8746.

When this function is accessed, the PEEC is placed into the calibration mode and sends calibration error values to the ECAP.

If there is no error in rack calibration:

CALIBRATED! is displayed on the LCD.

If there is a calibration error:

A bar graph showing the relative amount of calibration error and the direction to turn the sensor, for calibration, is displayed.

Example

If calibration error is above the calibration point:

The bar graph will appear on the left side of the center calibration mar and you will be instructed to Turn Sensor Adjustment In.

If calibration error is below the calibration point:

The bar graph will appear on the right side of the center calibration mark and you will be instructed to Turn Sensor Adjustment Out.

Calibrate Boost Sensor

This function is used to calibrate the boost sensor used on a 3406B PEEC engine.

When this function is accessed, the PEEC automatically calibrates the boost sensor.

The ECAP will display a message on the LCD indicating that the calibration is in progress.

When the automatic calibration is complete, the message CALIBRATED! will be displayed confirming the boost sensor is calibrated.

Monitor Throttle Position Sensor Signal

This function displays the duty cycle of the throttle position sensor signal.

The purpose of this function is to assist in the adjustment of the throttle position sensor.

NOTE: This function is not available on pre-1991 engines.

Error Messages

The following chart reflects the possible errors, displayed on the ECAP screen, which may occur during the operation of the NEXG4506 3406B PEEC Truck Functions Service Program Module.

The first column is the error message displayed, the second column is a description of the problem (if not explained in the error message) and the third column is the action which you should take to correct the error.

Available Parameters

Read Parameters

Electronic Control Module Serial NumberEngine RPM at Vehicle Speed LimitEngine Serial NumberFull Load SettingFull Torque SettingHigh Cruise Control Speed Set LimitHigh Gears Engine RPM LimitHigh Gears Turn On SpeedIdle Shutdown Time (On 1989 and later PEECs)Low Cruise Control Speed Set LimitLow Gears #1 Engine RPM LimitLow Gears #1 Turn Off SpeedLow Gears #2 Engine RPM LimitLow Gears #2 Turn Off SpeedLow Idle Engine RPMPeak TorquePeak Torque RPMPersonality Module CodePersonality Module Part NumberPersonality Module Release DatePowerPTO Engine RPM LimitPTO Vehicle Speed LimitRated RPMRating Selection CodeRating TypeService Tool Serial Numbers for Customer and Configuration ChangesTest Specification (with & without BrakeSaver)Top Engine Limit RPM RangeTop Engine RPM LimitTotal TattletaleVehicle IdentificationVehicle Speed CalibrationVehicle Speed Limit

Read and Change Parameters

Customer PasswordsEngine RPM at Vehicle Speed LimitEngine Serial NumberFull Load SettingFull Torque SettingHigh Cruise Control Speed Set LimitHigh Gears Engine RPM LimitHigh Gears Turn On SpeedIdle Shutdown Time (On 1989 and later PEECs)Low Cruise Control Speed Set LimitLow Gears #1 Engine RPM LimitLow Gears #1 Turn Off SpeedLow Gears #2 Engine RPM LimitLow Gears #2 Turn Off SpeedLow Idle Engine RPMPersonality Module CodePTO Engine RPM LimitPTO Vehicle Speed LimitRating Selection CodeTop Engine RPM LimitVehicle IdentificationVehicle Speed CalibrationVehicle Speed Limit

PEEC Status Parameters

The number in parentheses indicate the status parameter label number to be used when changing the status screen layouts.

Acceleration Mode (2)Boost Pressure (4)Brake/Clutch Switch (5)Cruise/PTO Switch (8)Cruise Mode (6)Cruise Set Speed (9)Deceleration Mode (10)Desired Engine RPM (29)Desired Rack Position (17)Desired Timing Advance (23)Engine RPM (11)Estimated Dynamic Timing (24)Estimated Fuel Rate (12)FRC Rack Limit Position (19)Inlet Air Pressure (3)Idle Shutdown Mode (On 1989 and later PEECs) (27)Oil Pressure (13)PTO Mode (7)PTO Set RPM (15)Rack Position (16)Rated Rack Limit Position (18)Resume Switch (20)Set Switch (21)Throttle Position (14)Timing Advance (22)Static Timing Specification (25)Vehicle Speed (26)

3406B PEEC Truck Functions Screen Map