ENGINE AR-CORE 2563690 - Caterpillar

Illustration 1 g01430447
Schematic of the "Tool Priority Relay" Switch and associated solenoidsThis diagnostic code is recorded when the voltage of the relay circuit is above normal. 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 0697 FMI 03 is active before performing this procedure.Test Step 1. CHECK THE ENERGIZE CIRCUIT OF THE RELAY FOR A SHORT TO THE +BATTERY CIRCUIT.
Turn the key start switch to the OFF position.
Disconnect the machine harness from the relay.
Disconnect the machine harness connectors J1 and J2 from the ECM.
At machine harness connector J1 and J2, measure the resistance from the J2-43 (relay signal) to all possible sources of +battery.Expected Result:Each resistance should be greater than 5000 ohms.Results:
OK - The machine harness is correct. Proceed to test step 2.
NOT OK - There is a short in the machine harness. The harness has failed.Repair: The short is between wire P992-BR and the circuit with the low resistance measurement. Repair the machine harness or replace the machine harness.STOPTest Step 2. CHECK IF THE DIAGNOSTIC CODE IS STILL ACTIVE.
Inspect the contacts and clean the contacts of the harness connectors.
Reconnect all harness connectors.
Turn the key start switch to the ON position.
Clear all inactive diagnostic codes.
Operate the machine.
Stop the machine.
Determine if the diagnostic code is present.Expected Result:The CID 0697 FMI 03 diagnostic code is active.Results:
YES - The problem has not been corrected. The ECM has failed.Repair: Exit this procedure and perform the diagnostic code procedure again. If the problem persists, the ECM may have failed. Prior to replacing an ECM, always contact your dealership's Technical Communicator for possible consultation with Caterpillar. This consultation may greatly reduce repair time. See the Testing & Adjusting, "Electronic Control Module (ECM) - Replace".STOP
NO - The diagnostic code is NOT present.Repair: The problem does not exist at this time. The initial problem was probably caused by a poor electrical connection or a short at one of the harness connectors that was disconnected and reconnected. Resume normal machine operation.STOP