0002275 WHEEL Caterpillar parts WHEEL
Alternative (cross code) number:
Weight: 0.30 pounds 0 kg.
Illustration 1 g01004770
Schematic of the Solenoid Valve (Parking Brake)This diagnostic code is recorded when the ECM reads the current of the solenoid as being above normal. There is a short to ground. The possible causes of this diagnostic code are listed:
The circuit of the solenoid is shorted to ground.
The solenoid has failed.
The ECM has failed. This is unlikely.
The service brake pedal switch has failed.System Response:When this diagnostic code occurs, the action lamp and the action alarm are ON. The diagnostic code will cause the transmission to shift to NEUTRAL until the diagnostic code is corrected.Note: Ensure that the CID 0681 FMI 06 is on hold and that the diagnostic indicator is illuminated. The nominal coil resistance at room temperature is 8.15 .6 ohms.Note: The following test procedure may create other diagnostic codes. Ignore these created diagnostic codes and clear the diagnostic codes when the original diagnostic code is corrected.Test Step 1. CHECK THE SOLENOID.
Turn 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 with the active diagnostic code from the machine harness. Expected Result:CID 0681 FMI 06 changes to CID 0681 FMI 05 when the solenoid is disconnected.Results:
YES - CID 0681 FMI 06 changes to CID 0681 FMI 05 when the solenoid is disconnected. The circuit is correct.Repair: The solenoid has failed. Repeat this test "CHECK THE SOLENOID" in order to verify the solenoid failure. Replace the solenoid.STOP
NO - CID 0681 FMI 06 remains active. Proceed to Test Step 2.Test Step 2. CHECK THE ENERGIZE CIRCUIT OF THE SOLENOID 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 connector(s) from the ECM.
At the machine harness connector, measure the resistance from the signal contact J1-68 (wire A958-WH) to all contacts that are used in the machine harness connectors for the ECM. 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 - Each resistance measurement is not greater than 5000 ohms. There is a short in the machine harness. The short is between J1-68 (wire A958-WH) 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.
Turn the disconnect switch and the key start switch to the ON position.
Operate the machine.
Check the status of the CID 0681 FMI 06. Expected Result:The CID 0681 FMI 06 is active. Results:
YES - The CID 0681 FMI 06 is active. The diagnostic code has not been corrected. The ECM may have failed.Repair: It is unlikely that the ECM has failed. Exit this procedure and perform this procedure again. If the cause of the diagnostic code is not found, replace