STRIP 7V9322 - Caterpillar

Illustration 1 g02865157
Schematic of transmission solenoid 3This diagnostic code is associated with transmission solenoid 3. The FMI 06 means that the Power Train Electronic Control Module (ECM) has determined that the current of the solenoid is above normal.The possible causes of this diagnostic code are:
The energize circuit of the solenoid is shorted to ground
The solenoid has failed
The ECM has failed. The ECM is unlikely to have failedNote: 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 1403 FMI 06 is active before performing this procedure.Note: Use the 146-4080 Digital Multimeter for the measurements in this procedure.System Response:When this diagnostic code occurs, only the gears that use the solenoids that have faults are not available.Test Step 1. CHECK THE SOLENOID
Move the disconnect switch and the key start switch to the ON position. Do not start the engine.
Observe the status of the diagnostic code.
Disconnect the solenoid from the machine harness.Expected Result:CID 1403 FMI 06 changes to CID 1403 FMI 05 when the solenoid is disconnected.Results:
YES - CID 1403 FMI 06 changes to CID 1403 FMI 05 when the solenoid is disconnected. The circuit is correct. The solenoid has failed.Repair: Replace the solenoid. Verify that the new solenoid corrects the problem.STOP
NO - CID 1403 FMI 06 remains active. Proceed to Test Step 2.Test Step 2. CHECK THE ENERGIZE CIRCUIT OF THE SOLENOID FOR A SHORT TO GROUND
Move the key start switch and the disconnect switch to the OFF position.
The solenoid remains disconnected from the machine harness.
Disconnect the machine harness connectors from the ECM.
At the machine harness connector, measure the resistance from the signal contact J1-66 (wire 754-BU) to all contacts that are used in the machine harness connectors for the ECM.Expected Result:Each resistance measurement is greater than 5 ohms.Results:
YES - Each resistance measurement is greater than 5 ohms. The machine harness is correct. Proceed to Test Step 3.
NO - Each resistance measurement is not greater than 5 ohms. There is a short in the machine harness. The short is between J1-66 (wire 754-BU) and the circuit with the low resistance measurement.Repair: Repair the machine harness or replace the machine harness.STOPTest Step 3. CHECK IF THE DIAGNOSTIC CODE REMAINS
Inspect the harness connectors and clean the contacts of the harness connectors.
Reconnect all harness connectors.
Move the disconnect switch and the key start switch to the ON position.
Operate the machine.
Check the status of CID 1403 FMI 06.Expected Result:CID 1403 FMI 06 is active.Results:
YES - CID 1403 FMI 06 is active. The diagnostic code has not been corrected. The ECM may have failed.Repair: The ECM is unlikely to have failed. Exit this procedure and perform this procedure again. If the cause of the diagnostic code is not found, replace the ECM. Refer to Troubleshooting, Testing, and Adjusting, "Electronic Control Module (ECM) - Replace". STOP
NO - CID 1403 FMI 06 is not active. The diagnostic code does not exist at this