C175-16 Marine Propulsion Engines Caterpillar

Use this procedure if the diagnostic code in Table 1 is active.

Table 1

Codes for the Configuration Parameters
CDL Code	Code Description	Comments
268-2	Programmed Parameter Fault : Erratic, Intermittent, or Incorrect	The Electronic Control Module (ECM) detects that one or more of the programmable parameters have not been programmed. The ECM may use a default torque map or the ECM may limit the engine to low idle. The code remains active while the parameter is unprogrammed. The code will never be logged.

System configuration parameters are parameters that affect emissions, power of the engine, and other features that define the characteristics of the engine subsystems. The parameters are preprogrammed at the factory. You may need to reprogram the system configuration parameters if the ECM is replaced and/or if you reprogram the engine rating. You do not need to reprogram the system configuration parameters if you replace the flash file. Caterpillar Electronic Technician (ET) can be used to view the values for these parameters. Certain system configuration parameters are stamped on the engine information plate.

If a programmable parameter has not been programmed, the ECM will generate a 268-2 diagnostic code. The parameter that is not programmed is also displayed on Cat ET.

Illustration 1	g02780516

Illustration 1 shows the parameters that are not programmed, or may be programmed outside the acceptable range. The parameters that are not programmed, or programmed outside the acceptable range are listed below the 268-2 code. These parameters will be set to the factory default value. Certain aspects of the engines performance and engine monitoring may be affected.

If "Injector Trim" is displayed below a 268-2 diagnostic code on Caterpillar Electronic Technician (ET), refer to Troubleshooting, "Injector Trim File - Install".

Parameters for the Engine ECM

ECM Identification Parameters

Equipment ID

"Equipment ID" allows the customer to enter a description into the ECM in order to identify the installation. A maximum of 17 characters may be entered in the field. This parameter is only for reference by the customer. This parameter is not required.

Engine Serial Number

Program the "Engine Serial Number" to match the engine serial number that is stamped on the engine information plate.

Note: When you are requesting factory passwords, always use the engine serial number that is resident in the ECM.

ECM Serial Number

The "ECM Serial Number" is stored in the memory of the ECM. The "ECM Serial Number" can be accessed by the use of the service tool.

Software Group Part Number

This parameter identifies the part number of the flash file that is currently installed in the ECM.

Software Group Release Date

This parameter identifies the release date of the flash file that is currently installed in the ECM.

Software Group Description

This parameter identifies the description of the application for the flash file that is currently installed in the ECM.

Selected Engine Rating

Rating Number

The rating number corresponds to the selected set of performance maps that has been selected for this application. There may be more than one set of performance maps that are available for this engine. All of the maps are resident in the flash file for the engine.

Rated Frequency

This parameter defines the line frequency of the generator set.

Rated Engine Speed

The optimum speed of the engine under the rated load.

Rated Real Genset Power

This parameter defines the output power of the generator set in kilowatts.

Rated Apparent Genset Power

The kVA rating of the generator set.

Rating Configuration

This parameter identifies the performance maps that are in the software.

Engine Rating Application Type

This parameter defines the type of application that defined the configuration of the engine.

Engine/Gear Parameters

Acceleration Delay Time

This parameter defines the maximum waiting period before the ECM will ramp the engine to high idle.

Programming this parameter to 0 will disable this function and the engine will begin to accelerate immediately.

Table 2

Minimum	Default	Maximum
0 Seconds	0 Seconds	255 Seconds

Engine Acceleration Rate

The engine acceleration rate defines the maximum rate of engine acceleration and deceleration.

Table 3

Minimum	Default	Maximum
40 rpm/sec	250 rpm/sec	400 rpm/sec

Low Idle Speed

This parameter is set to configure the low idle rpm of the engine.

Table 4

Minimum	Default	Maximum
600 rpm	600 rpm	1200 rpm

Engine Speed Droop

This parameter defines the allowed reduction in engine speed when full load is applied to the engine.

Table 5

Minimum	Default	Maximum
0 Percent	3.0 Percent	8.0 Percent

Remote Throttle Control Min Speed

When the remote throttle is being used, this parameter sets the negative side of the tolerance for the rated speed. For example, the rated speed is 1200 rpm, the "Remote Throttle Control Min Speed" is 100 rpm, then the minimum rated speed is 1100 rpm.

Table 6

Minimum	Default	Maximum
0 rpm	150 rpm	150 rpm

Remote Throttle Control Max Speed

When the remote throttle is being used, this parameter sets the positive side of the tolerance for the rated speed. For example, the rated speed is 1200 rpm, the "Remote Throttle Control Min Speed" is 100 rpm, then the maximum rated speed is 1300 rpm.

Table 7

Minimum	Default	Maximum
0 rpm	150 rpm	150 rpm

Droop Mode Selection

This parameter enables the engine to be operated in an isochronous load sharing system or in stand-alone mode.

Table 8

Options	Default
Droop Isochronous	Isochronous

Engine State Control

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Accidental engine starting can cause injury or death to personnel working on the equipment. To avoid accidental engine starting, turn the battery disconnect switch to the OFF position. Remove the key for the battery disconnect switch. Use a secure padlock in order to lock the battery compartment access door. Place a Do Not Operate tag at the Start/Stop switch location to inform personnel that the equipment is being worked on.

Note: Only allow qualified personnel to change the parameters that are for the engine state control.

Engine State Control Input Selection Method

This parameter identifies the type of control input selection that will be used by the ECM to identify the operating state of the engine.

Table 9

Options	Default
Configured Value Last Active Source Switched Source	Configured Value

Engine State Control Input Configuration

This parameter identifies the type of external source that is used by the ECM in order to obtain command signals for the engine state control.

Table 10

Options	Default
CAN Input Hardwired Input None	CAN Input

Engine State Control Secondary Input Configuration

This parameter identifies the type of secondary source that is used by the ECM in order to obtain command signals for the engine state control.

Table 11

Options	Default
CAN Input (Global) CAN Input #2 (Local) Hardwired Input None	Hardwired Input

Engine State Control Default Value

If a failure occurs on the current source selected for the operating state, this parameter is used to identify the operating state of the engine. This parameter will also be used if the engine ECM cannot determine the current operating state of the engine.

Note: If this parameter is set to "Run", the control system may start the engine unexpectedly. Only allow qualified personnel to change this parameter.

Table 12

Options	Default
Last Good Value Run Stop	Last Good Value

Engine State Control Hardwired Input Type Configuration

This parameter configures the type of input that is used for engine state control when the source is wired directly to the ECM. The "Energized to Switch State" refers to a momentary contact switch that is used for the start/stop control.

Table 13

Options	Default
Energized to Run Energized to Shutdown Energized to Switched State	Energized to Run

Remote Emergency Stop (E-Stop) Switch Input Type Configuration

This parameter defines the type of emergency stop switch that is installed on the application.

Table 14

Options	Default
Not Installed Normally Open Normally Closed (to Ground)	Normally Open

Cooldown Speed

This parameter is not programmable.

Parameter setting for 50 Hz Generator Set Engines:

Table 15

Minimum	Default	Maximum
N/A	1500 rpm	N/A

Parameter setting for 60 Hz Generator Set Engines:

Table 16

Minimum	Default	Maximum
N/A	1800 rpm	N/A

Cooldown Duration

This parameter defines the duration of engine operation at the cooldown speed. Programming this parameter to 0 will disable this function.

Table 17

Minimum	Default	Maximum
0 Minutes	1 Minutes	223 Minutes

Engine Speed Control

Desired Speed Input Configuration

This parameter defines the type of input signal that is delivered to the ECM for speed control.

Table 18

Options	Default
CAN Input PWM	CAN Input

Note: Use the PWM value for use with the load share module.

Secondary Desired Speed Input Configuration

This parameter defines the type of input signal that is delivered to the ECM for the secondary speed control.

Table 19

Options	Default
CAN Input Not Installed PWM	Not Installed

Engine Speed Control Source Selection Type

This feature is not available for this application.

Engine Speed Control Source Configuration

This feature is not available for this application.

Engine Speed Control Default Source

This feature is not available for this application.

Engine Speed Control Source Transfer Maximum Speed Difference

This feature is not available for this application.

Engine Speed Control Default Value Type

This feature is not available for this application.

Engine Speed Control Default Value

This feature is not available for this application.

Engine Prelubrication

Engine Pre-Lube

Programming this parameter to "Disabled" will disable the function. Program this parameter to "Disabled" if the function is not being used or installed on this engine. Diagnostics will be suspended for the pre-lube system.

Table 20

Options	Default
Disabled Enabled	Disabled

Engine Pre-Lube System Configuration

This parameter allows the engine to be set for the continuous prelubrication. While the engine is in continuous prelube, the prelube cycle is initiated without notification of an engine start request. The pump will run continuously until the lubrication system is pressurized to a predetermined pressure. Once this pressure is achieved, the pump will shut down, If the pressure is not achieved, the pump will time out according to the setting of the Engine Continuous Pre-lube Duration parameter. This cycle will repeat according to the Engine Continuous Pre-lube Interval.

Note: Setting this parameter to "Continuous" requires the use of a prelubrication pump and other components that are appropriate for this task. If the engine is improperly equipped, the engine could be flooded with engine oil and engine components may be damaged during engine starting.

Table 21

Options	Default
Automatic Continuous	Automatic

Engine Pre-Lube Time Out Period

This parameter defines the duration of operation of the prelubrication pump prior to the detection of oil pressure in the lubrication system. If the timer expires and pressure is not present in the lubrication system, the prelubrication pump will be shut down. The attempt to start the engine will be aborted.

Table 22

Minimum	Default	Maximum
1 Second	120 Seconds	1800 Seconds

Engine Ready to Start Pre-Lube Duration

This parameter configures the actual duration of operation for the prelubrication pump during the "Ready To Start" state of the prelubrication function. This state is entered when enough oil has been pumped into the engine in order to allow engine cranking to begin. If the engine is not immediately cranked, the prelubrication pump will continue to run in order for the engine to remain ready for starting.

Table 23

Minimum	Default	Maximum
1 Second	120 Seconds	1800 Seconds

Engine Continuous Pre-Lube Duration

This parameter configures the actual duration for the activation of the prelubrication pump while the pump is operating in the state of continuous prelubrication. The "Engine Prelube System Configuration" parameter must be configured to "Continuous" in order for this parameter to be initiated.

Table 24

Minimum	Default	Maximum
0 Minutes	120 Minutes	10000 Minutes

Engine Continuous Pre-Lube Interval

This parameter is used to configure the rest time for the prelubrication pump when the pump is operating in the state of continuous prelubrication. During this rest time, the prelubrication pump is not running. The "Engine Prelube System Configuration" must be configured to "Continuous" in order for this parameter to be initiated.

Table 25

Minimum	Default	Maximum
1440 Minutes	1440 Minutes	20160 Minutes

Starting System

Starting System Selection Mode

This parameter defines the method for engine starting that will be used for the application. Programming the parameter to "Manual" indicates that an external system will be used as input to start the engine. Programming the parameter to "Automatic" indicates that the internal system will be used to start the engine.

Table 26

Options	Default
Manual Automatic	Automatic

Starter Pinion Engagement Detection System Enable Status

This parameter is used to set the status of the detection system that is for engagement of the starter pinion. This system is used in order to prevent damage to the components of the starting system if the starter pinion does not engage the flywheel.

Table 27

Options	Default
Disabled Enabled	Enabled

Starting System #1 Type

This parameter defines the type of starting system that has been installed on the engine.

Table 28

Options	Default
Air Electric Hydraulic Not Installed	Air

Starting System #1 Assignment (Right Side)

This parameter defines the configuration of this starting system as the primary starting system or the secondary starting system.

Table 29

Options	Default
Primary Secondary	Primary

Starting System #1 Maximum Number of Crank Cycles

This parameter defines the total number of crank cycles that are performed by the primary starting system during an attempt to start the engine. An overcrank fault is logged for Starting System #1 if the engine does not start.

Table 30

Minimum	Default	Maximum
0	3	20

Starting System #1 Crank Cycle Rest Interval

This parameter defines the amount of time between the end of one crank cycle and the beginning of the next crank cycle.

Table 31

Minimum	Default	Maximum
1 Second	30 Seconds	60 Seconds

Starting System #1 Crank Duration

This parameter defines the maximum amount of time for an attempt to start the engine. The engine will activate the starting motors for no longer than the duration that is defined in this parameter during a single attempt.

Table 32

Minimum	Default	Maximum
1 Second	10 Seconds	30 Seconds

Starting System #2 Type (Left Side)

This parameter allows the configuration of a secondary starting system for the engine.

Table 33

Options	Default
Air Electric Hydraulic Not Installed	Not Installed

Crank Terminate RPM

This parameter determines the engine rpm that the starting motors will be disengaged.

Table 34

Minimum	Default	Maximum
100 rpm	400 rpm	500 rpm

Engine Protection Parameters

Emergency Shutdown Override Switch Installation Status

This parameter defines the installation status of the emergency shutdown override switch. This parameter is protected by factory passwords.

Table 35

Options	Default
Installed Not Installed	Installed

Emergency Shutdown Override Input Configuration

This parameter defines the input configuration of the signal source that is for the emergency shutdown override.

Table 36

Options	Default
CAN Input Switch to Ground	Switch to Ground

I/O Configuration Parameters

Air Intake Shutoff Detection Installation Status

This parameter is used to program the installation status of the air intake shutoff. If this parameter is programmed to "Installed", the ECM looks for signals from the sensors that detect the status of the air shutoff.

Table 37

Options	Default
Installed Not Installed	Not Installed

Cold Cylinder Cutout

This parameter is programmed to "Disabled" when the engine is shipped from the factory. The parameter is not available for this application.

Table 38

Options	Default
Disabled Enabled	Disabled

Direct Fuel Control Mode

When this parameter is programmed to "Enabled", the ECM accepts an analog input that allows an external governor to determine the fueling of the engine. When the engine is in the "Direct Fuel Control Mode", the engine operation is independent of all of the other strategies for the engine. Operation of the internal governor for the ECM is bypassed.

Table 39

Options	Default
Disabled Enabled	Disabled

Coolant Level Sensor Configuration

The "Coolant Level Sensor" parameter must be programmed to "Data Link" if the ECM receives the coolant level status over the data link. If the coolant level sensor is wired into the ECM, program this parameter to "Sensor". Otherwise program this parameter to "Not Installed" if the sensor is not installed on the application.

Table 40

Options	Default
Not Installed Data Link Sensor	Not Installed

System Settings

Rated Fuel Volume

This parameter allows the customer to program the fuel volume (mm³) for the engine at the rated engine speed. This data is used in order to calculate the different performance maps for the engine. These performance maps are based on the relationship between the fuel volume specified by the customer and the fuel volume from the performance maps. This parameter is protected by factory passwords.

Table 41

Minimum	Default	Maximum
0	850 mm3	8188 mm3

Fuel Correction Factor

The "Fuel Correction Factor" is a parameter that adjusts the calculation of fuel consumption. The fuel correction factor is used to correct the fuel consumption that is calculated by the ECM.

Fuel Air Ratio Control Adjust

This parameter allows the programming of the Fuel Air Ratio Control (FARC). This adjustment allows the setting of a lean air/fuel mixture for the engine in order to offset the effects of altitude on the engine.

Table 42

Minimum	Default	Maximum
0	0	255

Governor Gain Factor #1

This parameter is used in determining the rate of response to an engine load.

Table 43

Minimum	Default	Maximum
0	17040	65535

Governor Minimum Stability Factor #1

This parameter is used by the ECM to offset the steady state speed error when the steady state speed error is less than 20 rpm.

Table 44

Minimum	Default	Maximum
0	598	65535

Governor Maximum Stability Factor #1

This parameter is used by the ECM to offset the steady state speed error when the steady state speed error is greater than 20 rpm.

Table 45

Minimum	Default	Maximum
0	1197	65535

Engine Coolant Temperature Control Module Installation Status

This parameter is used to program the installation status of the TCM for the engine cooling system.

Table 46

Options	Default
Installed Not Installed	Installed

Desired Engine Coolant Temperature Configuration

This parameter is used to program setting for coolant temperature that will be used by the TCM for the engine.

Table 47

Minimum	Default	Maximum
40	85	102

Aftercooler Temperature Control Module Installation Status

This parameter is used to program the installation status of the TCM for the aftercooler cooling system.

Table 48

Options	Default
Installed Not Installed	Not Installed

Desired Engine Aftercooler Coolant Temperature Configuration (Petroleum Application)

This parameter is used to program setting for coolant temperature that will be used by the TCM for the aftercooler.

Table 49

Minimum	Default	Maximum
0	48	102

Desired Engine Aftercooler Coolant Temperature Configuration (Marine Application)

This parameter is used to program setting for coolant temperature that will be used by the TCM for the aftercooler.

Table 50

Minimum	Default	Maximum
0	40	102

Exhaust Temperature Module Installation Status

This parameter defines the installation status of the exhaust temperature module.

Table 51

Options	Default
Installed Not Installed	Installed

Full Load Setting (FLS)

FLS represents the adjustment to the fuel system that was made at the factory in order to fine-tune the fuel system. The correct value for this parameter is stamped on the engine information plate. Only change this value if the engine is rerated or if a new ECM has been installed. Factory passwords are required to change this parameter.

Table 52

Minimum	Default	Maximum
−128	0	127

Full Torque Setting (FTS)

FTS is like FLS. Only change this value if the engine is rerated or if a new ECM has been installed. Factory passwords are required to change this parameter.

Table 53

Minimum	Default	Maximum
−128	0	127

Security Access Parameters

Total Tattletale

The total tattletale counts the number of changes that are made to the system parameters.