PISTON & ROD GP 7E3429 - Caterpillar

Illustration 1 g02709999
Schematic of the transmission solenoid "2".This diagnostic code is associated with the Transmission Solenoid 2. The FMI 06 means that the ECM has determined that the current of the solenoid is above normal.The possible causes of this diagnostic code are listed:
The solenoid energizer circuit of the solenoid valve is shorted to ground.
The solenoid has failed.
The ECM has failed. This condition 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 1402 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 is active, the ECM will turn off the current to the failed solenoid.Test Step 1. CHECK THE SOLENOID
Turn the disconnect switch and the key start switch to the ON position. Do not start the engine.
Disconnect the solenoid with the active diagnostic code from the machine harness.
Observe the status of the diagnostic code.
At the machine harness connector for the solenoid, place a jumper wire from connector contact 1 (wire J836-GN) to connector contact 2 (wire H804-GN).Expected Result:The CID 1402 FMI 06 changes to CID 1402 FMI 05 when the jumper wire is installed.Results:
OK - CID 1402 FMI 06 changes to CID 1402 FMI 05 when the jumper wire is installed. The circuit is correct. The solenoid has failed.Repair: Replace the solenoid.STOP
NOT OK - CID 1402 FMI 06 remains active. Proceed to Test Step 2.Test Step 2. CHECK THE SOLENOID ENERGIZER CIRCUIT FOR A SHORT TO GROUND
Turn 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 J836-GN) to all sources of ground.Expected Result:Each resistance measurement is greater than 5000 ohms.Results:
OK - Each resistance measurement is greater than 5000 ohms. The machine harness is correct. Proceed to Test Step 3.
NOT OK - One or more of the resistance measurements are less than 5 ohms. There is a short in the machine harness. The short is between J1-66 (wire 836-GN) and the ground circuit.Repair: Repair or replace the machine harness.STOPTest Step 3. CHECK IF THE DIAGNOSTIC CODE IS STILL ACTIVE
Insure the key start switch and the disconnect switch are in the OFF position.
Remove all jumper wires previously installed on any connector.
Inspect the harness connectors and clean the contacts of the harness connectors.
Reconnect all disconnected machine harness connectors. Ensure that all the connectors are fully seated. Observe that the clips for each connector are securely fastened.
Turn the disconnect switch and the key start switch to the ON position.
Clear all inactive diagnostic codes.
Operate the machine.
Determine if the CID 1402 FMI 06 diagnostic code is active.Expected Result:The CID 1402 FMI 06 diagnostic code is active.Results:
OK - The CID 1402 FMI 06 diagnostic code is not active. The problem does not exist at this