1399999 ENGINE AR-COMPLETE Caterpillar parts 3126 ENGINE
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TRUCK ENGINE 3126 Caterpillar
Illustration 1 g02394259
Implement Control Valve Solenoids - the valve is located in the Non-Engine End Frame (NEEF)
(1) Lower Anti Drift Solenoid Valve
Illustration 2 g02394257
Connections of the lower anti drift solenoid
This diagnostic code is associated with the lower anti drift solenoid. The FMI 05 diagnostic code is activated when the ECM detects a below normal current for the solenoid circuit.The following conditions that cause the diagnostic code to be activated are listed below:
The energize circuit of the solenoid is open.
The return circuit of the solenoid is open.
The solenoid has failed.
The ECM has failed. This condition is unlikely. Note: 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, that all connections are secure and that all connections are 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.Note: The resistance of a good solenoid coil is 33.8 3 ohms at 25° C (77° F). Resistance is slightly affected by operating temperature. Resistance will increase as temperatures increase.Test Step 1. CHECK THE SOLENOID
Disconnect the solenoid from the machine harness.
At the machine harness connector for the solenoid, place a jumper wire from contact 1 (wire P945-OR(Orange)) to contact 2 (wire R799-BR(Brown)).
Turn the disconnect switch and the key start switch to the ON position. Do not start the engine.
Observe the status of the CID 2326 FMI 05 diagnostic code. Expected Result:The CID 2326 FMI 05 diagnostic code is no longer active. A CID 2326 FMI 06 diagnostic code becomes active when the jumper wire is connected.Results:
OK - The CID 2326 FMI 05 diagnostic code is no longer active. A CID 2326 FMI 06 diagnostic code becomes active when the jumper wire is connected. The solenoid has failed.Repair: Repeat this Test Step "CHECK THE SOLENOID" in order to verify the solenoid failure. Replace the solenoid. Verify that the new solenoid corrects the problem.STOP
NOT OK - The CID 2326 FMI 05 diagnostic code remains active. The jumper wire does not affect the status of the active diagnostic code. The solenoid is not causing the problem. Proceed to Test Step 2.Test Step 2. CHECK THE CIRCUIT FOR AN OPENThe jumper wire that was installed in the previous test step remains in place.
Turn the disconnect switch and the key start switch to the OFF position.
Disconnect the ECM connector for the machine harness J2 from the ECM.
At the machine harness connector J2 for the ECM, measure the resistance between contact J2-5 (wire P945-OR(Orange)) and contact J2-8 (wire R799-BR(Brown)).
While the resistance measurements are observed, perform the following:
Wiggle the machine harness connectors for the ECM.
Wiggle the machine harness connector for the solenoid.
Gently pull on the wires and wiggle
Caterpillar SIS machinery equipment:
Parts engine Caterpillar catalog:
3306164 ENGINE AR-COMPLETE