RING 1P2345 - Caterpillar

Illustration 1 g01278557
Travel Pilot Pressure Solenoid connectionsThis diagnostic code is associated with theTravel Pilot Pressure Solenoid. The FMI 06 means that the Machine Control ECM has determined that the circuit current for the solenoid is above normal.The Travel Pilot Pressure Solenoid is a proportional solenoid that is controlled by a Machine Control ECM PWM driver output. In order to control the solenoid, the ECM will change the current of the PWM output signal for the solenoid.Conditions that can cause this diagnostic code are listed:
The energize circuit of the solenoid is shorted to a ground source.
The solenoid has failed.
The ECM has failed. This is unlikely. Before performing this procedure, inspect the harness connectors that are involved in the circuit. Poor connections can often be the cause of a problem in an electrical circuit. Verify that all connections in the circuit are clean, secure and in good condition. If a problem with a connection is found, correct the problem and verify that this diagnostic code is active before performing this procedure. 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.Test Step 1. CHECK THE SOLENOID
Turn the disconnect switch and the key switch to the ON position. Do not start the engine.
Observe the status of the diagnostic code.
Disconnect the solenoid with the active diagnostic code from the machine harness. Expected Result:The active FMI 06 diagnostic code changes to a FMI 05 diagnostic code when the solenoid is disconnected.Results:
YES - The active FMI 06 diagnostic code changes to a FMI 05 diagnostic code when the solenoid is disconnected. The circuit is correct.Repair: The solenoid has failed. Repeat this test "CHECK THE SOLENOID" in order to verify the solenoid failure. Replace the solenoid.STOP
NO - FMI 06 diagnostic code remains active. Disconnecting the solenoid did not affect the status of the diagnostic code. Proceed to Test Step 2.Test Step 2. CHECK THE ENERGIZE CIRCUIT OF THE SOLENOID FOR A SHORT TO GROUNDThe solenoid remains disconnected from the machine harness.
Turn the key switch and the disconnect switch to the OFF position.
Disconnect the machine harness connectors J1 and J2 from the Machine Control ECM.
At the Machine Control ECM machine harness connector J1, measure the resistance from the supply contact J1-49 (wire K923-PU) to frame ground. Measure the resistance from the supply contact J1-49 (wire K923-PU) to all of the other contacts that are used in the Machine Control ECM connectors.Expected Result:Each resistance measurement is greater than 5000 ohms.Results:
OK - Each resistance measurement is greater than 5000 ohms. The solenoid circuit is not shorted in the machine harness. Proceed to Test Step 3.
NOT OK - One or more of the resistance measurements is less than 5000 ohms. There is a short in the machine harness. The short is between wire K923-PU and the circuit with the low resistance measurement. Repair: Refer to the complete machine Electrical System Schematic. Examine all of the connectors in circuits for points in the