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| Illustration 1 | g01252336 |
Front brake solenoid circuit | |
The CID 1013 FMI 06 diagnostic code is recorded when the brake ECM reads the solenoid current as above normal or shorted to ground.
The possible causes of this diagnostic code are listed:
- The solenoid circuit is shorted to ground.
- The solenoid has failed.
- The ECM has failed. ECM failure is unlikely.
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.
Note: Use a calibrated 146-4080 Digital Multimeter for the measurements in this procedure.
Test Step 1. CHECK THE SOLENOID.
- Turn the disconnect switch and the keyswitch to the ON position. Do not start the engine.
- Ensure that CID 1013 FMI 06 is on hold.
- Observe the status of the diagnostic indicator. The diagnostic indicator is illuminated or the diagnostic indicator is not illuminated.
- Disconnect the solenoid with the active diagnostic code from the harness.
Expected Result:
The diagnostic indicator is no longer illuminated when the solenoid is disconnected.
Results:
- YES - The diagnostic indicator is no longer illuminated. The circuit is correct.
Repair: The solenoid has failed. Repeat this test "CHECK THE SOLENOID" to verify the solenoid failure. Replace the solenoid.
STOP
- NO - The diagnostic indicator remains illuminated. The diagnostic code remains active. Proceed to Test Step 2.
Test Step 2. CHECK THE SOLENOID CIRCUIT FOR A SHORT TO GROUND.
- Turn the keyswitch and the disconnect switch to the OFF position.
- Disconnect the harness from the solenoid.
- Disconnect the harness connectors J1 and J2 from the ECM.
- At the harness connector, measure the resistance from the signal contact J1-68 (wire X971-OR) to all contacts that are used in the harness connectors for the ECM.
Expected Result:
Resistance should be greater than 5000 ohms for each measurement.
Results:
- OK - The resistance is greater than 5000 ohms for each measurement. The harness is correct. Proceed to Test Step 3.
- NOT OK - The resistance is not correct. There is a short between wire (X971-OR) and the circuit with the low resistance.
Repair: Repair or replace the harness.
STOP
Test Step 3. CHECK IF THE DIAGNOSTIC CODE REMAINS.
- Inspect and clean the harness connector contacts.
- Reconnect all connectors.
- Turn the disconnect switch and the keyswitch to the ON position.
- Clear all inactive diagnostic codes.
- Operate the machine.
- Check CID 1013 FMI 06 is present and the diagnostic indicator is illuminated.
Expected Result:
CID 1013 FMI 06 is not present and the diagnostic indicator is not illuminated.
Results:
- YES - The diagnostic code is not present. The diagnostic code does not exist at this time. The diagnostic code was probably caused by a poor connection or a short at one of the connectors that was disconnected and reconnected. Resume normal machine operation.STOP
- NO - The diagnostic code has not been corrected. The ECM may have failed, however, ECM failure is unlikely.
Repair: Exit this procedure and perform this procedure again. If the cause of the diagnostic code is not found, contact your Cat dealer. If ECM replacement is required, refer to the Testing and Adjusting, "Electronic Control Module (ECM) - Replace" section of this manual.
STOP