Usage:
Introduction
The Special Instructions or Tool Operating Manual for the following tools and/or software are included with the group. They are also available in the Special Instruction microfiche SBFY1006.
All application programs, described in this article, are purchased separately through the Caterpillar Literature System.
8T-8697 Electronic Control Assembly [Electronic Control Analyzer Programmer (ECAP)]
The 8T-8697 ECAP is the primary service tool for electronic controls at this time.
It allows access to the controls at all security levels. It comes with a Utility/Executive Service Program Module (SPM) installed; which runs the ECAP, selects Metric/English display units and provides communication with the three input/output ports.
The following items can be ordered through the Parts system for use with the ECAP.
7X-1412 and 8T-5275 Adapter Cable Assembly (T-Harnesses): These connect to Port #1 on the ECAP.
They are needed to supply power to the ECAP and allows it to communicate with the electronic controls on the 3406 PEEC and 3176 Truck Engines.
The latest build of the ECAP uses a metal connector for Port #1 in response to dealer requests. The 7X-1412 is the new T-Harness to connect to this metal connector.
The previous T-Harness for the plastic connector was 8T-5275.
7X-1180 Electronic Adapter Group (Internal Expansion Board): The ECAP can accept three application SPMs in addition to the Executive/Utility SPM to handle specific service needs.
The installation of a 7X-1180 Internal Expansion Board provides four more sockets to install additional SPMs, for a total of seven SPMs installed at once.
NOTE: Refer to Service Program Modules (SPM) in this article, for the SPMs available for use with the ECAP.
8C-9801 Electronic Control Group [Pulse Width Modulated (PWM) Adapter Group]: This allows the ECAP to measure the frequency and duty cycle of a pulse width modulated (PWM) signal.
This function is accessed through the Utility Functions menu on the ECAP. It can be used to verify or diagnose the operation of some of the sensors used with electronic engines. The group also includes the 8T-5277 Probe Cable ((Pulse Width Modulation Cable).
8C-9995 Plate Adapter Group (Mounting Bracket Group): This is provided to upgrade the early ECAPs.
The 8C-9995 Mounting Bracket Group provides a permanent mount on the ECAP to secure an external module.
NOTE: Order ONLY if the ECAP is not equipped with the 8C-9995 Mounting Bracket Group.
7X-1703 Plate Adapter Group (Mounting Bracket Group): This is provided to mount the 7X-1700 Communication Adapter on the ECAP. It mounts on the 8C-9995 Mounting Bracket Group to secure the 7X-1700 Communication Adapter.
7X-1200 Electronic Tool Group (Timing Interface Group) and 7X-1170 Adapter Cable Assembly (Timing Adapter Cable: These are designed to be used with the ECAP to allow the monitoring and calibration of fuel injection timing on the 3176 engines prior to 3176B engines.
8C-9705 12VDC Converter [12 Volt Converter (ECAP)]: This provides power to the ECAP when it is used away from the engine or vehicle being serviced.
The 8C-9705 12 Volt Converter plugs into Port #1 on the ECAP. It can be switched to provide DC power to the ECAP from either 120 or 240 Volts AC sources at either 50 or 60 Hz.
7X-1403 Adapter Harness Assembly (In Cab Adapter Cable) and 7X-1686 Adapter Cable Assembly (In Cab Adapter Cable): These are used to connect the 7X-1412 or 8T-5275 T-Harness cables on the ECAP or Digital Diagnostic Tool (DDT) to the connector on the dash inside the cab instead of having to open the engine compartment.
On the new 3406E and 3176B engine controls they will be required because there is no diagnostic connector on the control.
7X-1854, 7X-1855 and 7X-1856 Adapter Cable Assemblies (Cranking Cables): These newly released cables allow the ECAP to retain power during engine cranking.
The 7X-1854 Cranking Cable is used with metal Port #1 ECAPs and the 7X-1855 Cable is used with plastic Port #1 ECAPs.
They are small T-Harnesses which are attached directly to the ECAP Port #1.
The standard 7X-1412 or 8T-5275 T-Harness is then attached to it.
The base of the T-Harness is a 2- Pin metal connector that will accept the battery cable or the 8T-9276 Power Supply.
The 7X-1856 Adapter Cable Assembly is an adapter from these cables to the 8C-9705 12 Volt Converter described above.
ECAP Service Program Modules (SPM)
The SPMs are ordered through the Caterpillar Literature System. When one is ordered you receive the SPM, a Tool Operating Manual, and plastic pocket cards.
If it is a subscription, you receive all updates during the subscription year; which runs from the beginning of June through the end of May.
The subscription is automatically renewed unless you cancel it. The form number and version number of each SPM is printed on the module and can also be displayed on the ECAP with the SPM Version Number screen.
The following SPMs are available for use with the ECAP.
NEXG4514 Executive/Utility SPM: The NEXG4514 version number may be marked as NEXG4514 V1.1, 7X-1350 V1.1, or 8C-5363 V1.1.
The SPM version number is displayed on the ECAP screen during the power up self test.
The SPM runs the ECAP, selects Metric or English display units, handles the interface with SPMs in the ECAP, the interface with adapters connected to Port #3, and provides basic communication abilities with Port #1 and Port #2.
The SPM is included in socket U48 of the ECAP and does not have to be ordered separately. It MUST be present for the ECAP to function.
NEXG4506 SPM (3406 Electronic Truck Engines): Canceled and replaced by NEXG4522.
NEXG4507 SPM (3176 Truck Engines): Canceled and replaced by NEXG4522.
NEXG4522 Truck Engine Functions SPM (All electronic truck engines): The NEXG4522 is software and a subscription for updates. It consists of three SPMs and provides all the service functions for all versions of the 3406 and 3176 Truck Engine Electronic Control Modules (ECM).
The present version number is V1.3 and V1.4 will be released in mid April.
This is a three chip set consisting of a MASTER, a SLAVE #1, and a SLAVE #2.
SLAVE #1 MUST be located in socked U47 of the ECAP, and SLAVE #2 MUST be located in socket U46. The MASTER may be in U45 or anywhere on the 7X-1180 Expansion Board.
NEXG4516 Marine/Industrial/EPG SPM: The NEXG4516 is software and a subscription for updates. It provides services for Marine, Industrial, and EPG engines. The present version number is V1.3.
This is a two chip set consisting of a MASTER and a SLAVE. The SLAVE MUST be located in U46 of the ECAP. The MASTER may be located in U45, U47 or anywhere on the 7X-1180 Expansion board.
NEXG4518 Challenger 75 SPM: The NEXG4518 is software with no subscription for updates. It provides all of the service functions for the 3176 Engine in the Challenger 75. The present version number is V1.1.
NEXG4521 Machine Functions SPM: The NEXG4521 is software and a subscription for updates. It provides all the service functions for the 3500 series diesel engine controls, EPTC II transmission controls, and Electronic Shift controls that communicate over the Cat data link. The present version number is V1.1A.
This is a two chip set consisting of a MASTER and a SLAVE. The SLAVE MUST be located in U45 of the ECAP. The MASTER may be located in U46, U47 or on the 7X-1180 Expansion board.
NEXG4512 Configuration Aid SPM: The NEXG4512 is software with no subscription for updates.
This is a two chip set consisting of a MASTER and a SLAVE.
The SLAVE MUST be located in U5 of the 7X-1180 Expansion Board. The MASTER may be located in any open location on the ECAP or 7X-1180 Expansion Board.
It is a menu driven interface to help determine values for Customer Specified Parameters in the 3406 Electronic and 3176 Truck Engine electronic engine controls. The present version number is V1.1.
7X1700 Electronic Tool Group (Communication Adapter)
The 7X1700 Communication Adapter is used to allow service tools and electronic controls talking on different data bases to communicate with each other.
It can connect to the Cat data link or the ATA (American Trucking Association) data link on the control side and to the ATA data link or RS232 data link on the service tool side; using the cables listed below.
These cables should be ordered separately through the parts system, depending on your application.
NOTE: Refer to the Tool Guide for cable specifications.
7X-1412 Cable: ATA (American Truck Association) Control to 7X-1700.
7X-1570 Adapter Cable Assembly (Cable): Cat data link Control to 7X-1700.
7X-1414 Adapter Cable Assembly (Cable): 10-Pin Control to 7X-1570.
7X-1415 Adapter Cable Assembly (Cable): 4-Pin Control to 7X-1570.
7X-1420 Adapter Cable Assembly (Cable): 7X-1700 to ATA (American Truck Association) Service Tool (Plastic Port #1).
7X-1851 Adapter Cable Assembly (Cable): 7X-1700 to ATA (American Truck Association) Service Tool (Metal Port #1).
7X-1688 Adapter Cable Group (Cable): 7X-1700 to RS232 Service Tool
Software is also ordered separately through the Caterpillar Literature System as form NEXG4523. This is not a subscription.
While the software may change as functions are added to the Communication Adapter, there is no planned schedule of updates.
7X-6400 Electronic Tool Group [Digital Diagnostic Tool (DDT)]
The 7X-6400 DDT is a limited service tool for working with customer parameters on an individual type of engine.
It is the basic electronic tool for the Truck Engine DDTs. The addition of the appropriate SPM will allow it to function with 3406 Electronic Truck Engines, 3176 Truck Engines, or 3176 Engines in the Challenger 75.
It provides basic diagnostic, vehicle and engine status, and calibration displays. It also displays and allows for the modification of the respective Customer Specified Parameters.
The included 8T-5275 T-Harness supplies power to the DDT and allows it to communicate to the engine control. The 8T-5277 Cable Probe (Pulse Width Modulation Cable) is also included in the group.
DDT Service Program Modules (SPM)
The SPMs are ordered through the Caterpillar Literature System. When one is ordered you receive the SPM, a Tool Operating Manual, plastic pocket cards and decals to customize the DDT.
The version number is printed on the module and can also be displayed on the DDT screen under Mode 00.
NEXG4508 (3406B and 3406C Electronic Truck Engines) SPM: The NEXG4508 is software with no subscription for updates.
The NEXG4508 SPM is installed in the 7X-6400 DDT and turns it into a 8T-5282 DDT for 3406B and 3406C Electronic Truck Engines.
The NEXG4508 SPM provides all of the service functions for the 3406B and 3406C Electronic Truck Engine.
The present version number is V2.7.
The NEXG4508 SPM is compatible with all versions of the 3406B and 3406C Electronic Truck Engine control personality modules.
NEXG4509 (3176 Truck Engines) SPM: The NEXG4509 is software with no subscription for updates.
The NEXG4509 SPM is installed in the 7X-6400 DDT and turns it into a 7X-1055 DDT for the 3176 and 3406E Truck Engines.
The NEXG4509 SPM provides all the service functions for the 3176 and 3406E Truck Engines.
The present version number is V1.5.
The NEXG4509 SPM is compatible with all versions of the 3176 and 3406E Truck engine control personality modules.
NEXG4519 (3176 Engine in Challenger 75) SPM: The NEXG4519 is software with no subscription for updates.
The NEXG4519 SPM is installed in the 7X-6400 DDT and turns it into a 7X-1690 DDT for the 3176 Engine in the Challenger 75.
The NEXG4519 SPM provides all of the service functions for the 3176 Engine in the Challenger 75.
The present version number is V1.0.
Breakout Cables
The breakout cables help service the electronic control systems.
They provide test points for the individual wires in the wiring harnesses to aid in troubleshooting of the engine control system.
They are T cables with individual receptacles on the pigtail portion of the cables.
They can be inserted into the system wiring harness at connector locations.
The individual receptacles on the pigtails are labeled with the wire to which they are connected in the harness.
Standard probe tips, like those on multimeter leads, can be inserted into the receptacles. The cables are listed below.
8T-8726 Adapter Cable Assembly (3-Pin Breakout Cable): Used with 3-Pin circular Deutsch connectors.
8T-8694 Adapter Cable Assembly (5-Pin Breakout Cable): Used with 5-Pin circular Deutsch connectors.
8T-8695 Adapter Cable Assembly (9-Pin Breakout Cable): Used with 9-Pin circular Deutsch connectors.
9X-0248 Adapter Cable Assembly (Transducer Breakout Cable): Used with the transducer connector on 3176 engines.
7X-6370 Adapter Cable Assembly (3-Pin Breakout Cable): Used with 3-Pin Deutsch connectors.
9X-1160 Cable Assembly (40-Pin Breakout Cable): Used with large 40-Pin rectangular connector.
Instead of 40 receptacles, this cable has a 40-Pin connector with two small probes with receptacles attached to it.
The probes can be inserted into the appropriate connector socket to look at the signal on any wire or between any two wires.
7X-1715 Cable Assembly (40-Pin Breakout Cable): Used with 40-Pin square connector.
Instead of 40 receptacles, this cable has a 40-Pin connector with two small probes with receptacles attached to it.
The probes can be inserted into the appropriate connector socket to look at the signal on any wire or between any two wires.
7X-1400 Electronic Tool Group [Digital Diagnostic Tool (DDT)]
The 7X-1400 DDT is the basic electronic tool for the Industrial Engine DDTs.
The addition of a SPM will allow it to function with Gas Engines.
It provides basic diagnostic, vehicle and engine status and calibration displays and allows programming of Customer Specified Parameters.
The information displayed will also allow the engines magneto (if equipped) to be calibrated.
The included cables supply power to the DDT and allow it to communicate with the engine control.
The software is ordered separately through the Caterpillar Literature System.
NEXG4511 Industrial Applications SPM: Software and a subscription for updates.
The NEXG4511 SPM provides most of the service functions for the Gas Engines.
When the NEXG4511 SPM is ordered you receive the SPM, a Tool Operating Manual, a plastic pocket card and decals to turn the 7X-1400 DDT into a 8C-9904 DDT for Gas Engines.
You also receive all updates during the subscription year; which runs from the beginning of June through the end of May. The subscription is automatically renewed unless you cancel it.
The present version number is V1.3. The version number is printed on the module and can also be displayed on the DDT screen under Mode 00.