The Engine Control Module(ECM) detects the following conditions:
The ECM is unsuccessful in receiving a message from a J1939 source.
The ECM is not receiving a valid message from a J1939 source
The power train data link is designed to offer electronically controlled Anti-Lock Brakes (ABS),traction control systems,and/or transmission controls. This is accomplished by a momentary reduction of engine rpm and/or engine torque, that is triggered by a signal from an off-engine control module for the ABS, the traction control, or the transmission. An off-engine control module is a control module that is not part of theCaterpillar engine control system.
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Possible Causes:
1)ECM Connection/Harness
2) Other devices on the J1939(ABS,Body Controller,Transmission, etc…) are failing causing the issue
3) Improper programming in ECM
4) ECM Failure
More repair case for Caterpillar machine,please refer to:Caterpillar Machine Repair
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