GENERAL AR 5106346 - Caterpillar

Illustration 1 g02762737
Schematic of the Reverse Solenoid circuit
This diagnostic code is associated with the Reverse Solenoid. The FMI 03 diagnostic code means that the Machine ECM has determined that the voltage of the solenoid circuit is above normal.Conditions that can cause this diagnostic code are listed below:
The energize circuit of the solenoid is shorted to another voltage source.
The Machine ECM has failed. This situation 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. Verify that the CID 1403 FMI 03 diagnostic code is active before performing this procedure.Test Step 1. CHECK THE ENERGIZE CIRCUIT OF THE SOLENOID FOR A SHORT
Turn the key switch and the disconnect switch to the OFF position.
Disconnect the machine harness connector from the solenoid.
Disconnect the machine harness connectors J1 and J2 from the Machine ECM.
At the harness connector J1 for the Machine ECM, measure the resistance from the supply contact J1-49 (wire 754-BU(Blue)) to all of the J1 and J2 contacts that are used on the Machine ECM. Expected Result:Each resistance measurement is greater than 5000 ohms. Results:
OK - Each resistance measurement is greater than 5000 ohms. The energize circuit is not shorted to another circuit in the machine harness. Proceed