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LINES GP- 2389782 - Caterpillar



2389782 LINES GP- Caterpillar parts LINES
Rating:
36
Alternative (cross code) number:
CA2389782
238-9782
2389782
Caterpillar 2389782 LINES GP-

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Illustration 1 g02794129
Schematic of the Park Brake Lockout Solenoid
This diagnostic code is recorded when the ECM reads the voltage of the solenoid circuit as being above normal.The possible causes for this diagnostic code are listed:
The circuit of the solenoid is shorted to the + battery.
The solenoid has failed.
The ECM has failed. This is unlikely.Note: Ensure that the CID 0681 FMI 03 for the solenoid is active.System Response:The machine lockout will never engage. As an example, the machine lockout switch will be active but the system response will be that the machine lockout lamp will flash indicating that the necessary conditions are not met.Test Step 1. CHECK THE SOLENOID CIRCUIT FOR A SHORT TO THE + BATTERY.
Turn the key start switch and the disconnect switch to the OFF position.
Disconnect the machine harness from the solenoid.
Disconnect the machine harness connectors J1 and J2 from the ECM.
At machine harness connector J1 and J2, measure the resistance from the signal contact J2-7 (wire A958-WH(White)) to all possible sources of +battery. Expected Result:The resistance should be greater than 5000 ohms for each measurement.Results:
OK - The resistance is greater than 5000 ohms. The machine harness is correct. Proceed to test step 2.
NOT OK - The resistance is NOT correct. There is a short in the machine harness. The short is between signal contact J2-7 (wire A958-WH(White)) and the circuit with the low resistance measurement.Repair: Repair the harness or replace the harness.STOPTest Step 2. CHECK IF THE DIAGNOSTIC CODE REMAINS.
Inspect the contacts 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.
Clear all inactive diagnostic codes.
Operate the machine.
Observe the status of CID 0681 FMI 03 for the solenoid. Expected Result:The CID 0681 FMI 03 for the solenoid is NOT present. Results:
OK - The diagnostic code is NOT present. The diagnostic code does not exist at this time. The initial diagnostic code 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
NOT OK - 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 CID 0681 FMI 03 again. If the cause of the diagnostic code is not found, replace the ECM. See Testing and Adjusting, "Electronic Control Module (ECM) - Replace".STOP


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