HOUSING AS-TURBINE 2462105 - Caterpillar

Illustration 1 g00817412
Schematic of the indicator lamp (retarder)
This diagnostic code is associated with the indicator lamp (retarder). The FMI 06 means that the ECM has determined that the current of the indicator lamp is above normal. The possible causes of this diagnostic code are listed:
The energized circuit of the indicator lamp is shorted to ground.
The indicator lamp has failed.
The ECM has failed. This 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 0712 FMI 06 is active before performing this procedure.Note: Use the 146-4080 Digital Multimeter for the measurements in this procedure.System Response:The diagnostic code will be logged into memory.Test Step 1. CHECK THE INDICATOR LAMP.
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 indicator lamp with the active diagnostic code from the machine harness. Expected Result:CID 0712 FMI 06 is no longer active when the indicator lamp is disconnected.Results:
YES - CID 0712 FMI 06 is no longer active when the indicator lamp is disconnected. The circuit is correct.Repair: The indicator lamp has failed. Repeat this test "CHECK THE INDICATOR LAMP" in order to verify the failure of the indicator lamp. Replace the indicator lamp.STOP
NO - CID 0712 FMI 06 remains active. Proceed to Test Step 2.Test Step 2. CHECK THE ENERGIZED CIRCUIT OF THE INDICATOR LAMP FOR A SHORT TO GROUND.
Turn the key start switch and the disconnect switch to the OFF position.
The indicator lamp 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 J1-4 (wire 454-GN(Green)) 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 J1-4 (wire 454-GN(Green)) 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 0712 FMI 06. Expected Result: