RIM-TCK SPRK- 2892207 - Caterpillar

Illustration 1 g01157543
Schematic of the front retarder supply solenoidThis diagnostic code is associated with the front retarder supply solenoid. This diagnostic code is recorded when the Power Train/Chassis Electronic Control Module (ECM) reads the current of the solenoid as being below normal.The possible causes are listed:
There is an open in the circuit.
The solenoid has failed.
The ECM has failed. This is unlikely.Note: The following test procedure may create other diagnostic codes. Ignore these created diagnostic codes and clear these diagnostic codes when the original diagnostic code has been corrected. Ensure that the diagnostic code of CID 1605 FMI 05 is active before performing this procedure.Note: Use the 146-4080 Digital Multimeter for the measurements in this procedure.System Response:The front retarder supply solenoid is always de-energized. The ECM will not be able to energize the front retarder supply solenoid. The Automatic Retarding Control (ARC) will continue to operate using the rear retarder supply solenoid. The ARC system will operate at a reduced level of performance.Test Step 1. CHECK THE SOLENOID
Turn the battery disconnect switch and the key start switch to the ON position.
Disconnect the machine harness from the solenoid.
At the machine harness connector for the solenoid, place a jumper wire from contact 1 (wire K989-BU) to contact 2 (wire E790-PK).
Observe the status of the diagnostic code.Expected Result:The diagnostic code is active. Then, the diagnostic