GENERATOR GP 5N0064 - Caterpillar

Illustration 1 g02357696
Power Shift Pressure solenoid circuit schematic
This diagnostic code is for the Power Shift Pressure solenoid . An FMI 05 diagnostic code indicates the machine ECM has determined the solenoid circuit current is below normal.Possible causes for this diagnostic code are:
The Backup Switch has failed.
The solenoid has failed.
There is an open in the solenoid circuit.
The machine ECM has failed, but is most unlikely. Note: Poor connections are often the cause of a problem in electrical circuits. Before performing this procedure, inspect all the machine harnesses and connectors involved in the circuit. Make sure to verify that all of the connections in the circuit are clean, secure, and in good condition. Correct any problems found with any of the connections. Verify the diagnostic code CID 0581 FMI 05 is still active, before continuing with this procedure.Note: The following test procedure may create other diagnostic codes. Ignore all the created diagnostic codes now, but clear all those codes after the cause for the original diagnostic code has been corrected. Test Step 1. CHECK THE SWITCH.
Table 1
Switch State Switch Contacts Status
Active Contacts 5 & 6 and 11 & 12 Closed
Active Contacts 5 & 4 and 11 & 10 Open
Inactive Contacts 5 & 6 and 11 & 12 Open
Inactive Contacts 5 & 4 and 11 & 10 Closed
Turn the starter keyswitch and the disconnect switch to the OFF position.
Disconnect the Backup Switch from the panel.
Toggle the switch from one state to the other. On each of the switch two states, check for continuity on the switch pins listed on Table 1. Expected Result:Both states of the switch continuity agree with table 1.Results:
YES - The switch continuity is correct. Go to Test Step 2.
NO - The switch continuity is not correct. The Backup Switch has failed. Repair: Replace the switch.Go to Test Step 4.Test Step 2. CHECK THE SOLENOID.
The disconnect switch and the starter keyswitch remain in the the OFF position.
Reconnect the backup switch.
Disconnect the machine harness from the Power Shift Pressure solenoid.
In the machine harness connector for the solenoid, place a jumper wire from the contact for terminal 1 (wire A768-BU(Blue)) to the contact for terminal 2 (wire A769-GY(Grey)) in the solenoid harness connector.
Turn the starter keyswitch and the disconnect switch to the ON position.
Observe the status of the CID 0581 FMI 05diagnostic code. Expected Result:The CID 0581 FMI 05 diagnostic code is active. Results:
YES - The diagnostic code is active. The solenoid is not the problem. Go to Test Step 3.
NO - The CID 0581 FMI 05 diagnostic code is not active and has been replaced by an active CID 0581 FMI 05 diagnostic code. The solenoid has failed.Repair: Replace the solenoid. Go to Test Step 4.Test Step 3. CHECK THE SOLENOID CIRCUIT FOR AN OPEN.
Turn the starter keyswitch and the disconnect switch to the OFF position.
The harness connector remains disconnected from the solenoid.
The jumper wire remains in the solenoid harness connector.
Disconnect the J2 harness connectors from the machine ECM.
At the J2 harness connector, measure resistance from contact J2-4 (wire L969-WH(White))