What is a 4WD service?
Four-wheel drive vehicles demand rugged performance from their transmissions, especially when used for off-road driving or towing. Our 4×4 services include: Draining and refilling the Transfer Case with fresh, clean fluid. Draining and refilling the Front Differential with fresh, clean fluid.
When does the 4WD warning light go out?
When the ignition key is cycled from OFF-RUN-START and is released back to the RUN position after the vehicle starts, the 4WD warning light should illuminate for 1 to 2 seconds and then go out. If it stays on, or the “Service 4WD System” message is displayed, there is a problem with the 4WD system.
Why is my 4WD mode selector not working?
Erratic operation of the dash-mounted mode selector switch. If the 4WD system is not working and the code C0327 is stored in the TCCM, you most likely have a faulty position sensor in the encoder motor. Various software updates depending on vehicle year and model.
What does ” service 4WD system ” message mean?
Properly diagnosing and repairing any problems found should restore the system to proper operation. The “Service 4WD System” message does not mean it is time for routine maintenance of the 4WD system; rather, it indicates a problem with the 4WD system that should be properly diagnosed and repaired.
What happens when service 4 wheel drive trouble codes are stored?
When the trouble codes are stored and the Service 4 Wheel Drive Message is displayed, the transfer case is inoperative for the rest of that particular key cycle. It will test again and reset the message on the next key cycle if the problem hasn’t been fixed. The codes may be stored with or without you requesting a transfer case shift.
When the ignition key is cycled from OFF-RUN-START and is released back to the RUN position after the vehicle starts, the 4WD warning light should illuminate for 1 to 2 seconds and then go out. If it stays on, or the “Service 4WD System” message is displayed, there is a problem with the 4WD system.
Why is my service 4WD indicator not working?
If the wires are broken, the actuator won’t operate and the actuator won’t move. If it does not move to the proper position, the buttons on the dash will blink and the “Service 4WD” indicator will be lit because the TCCM never sees a complete 4WD engagement. The ground wire to my front axle actuator was the culprit on my truck.
Why does my 4WD not work after FDCM?
The 4WD would not engage when lifting the T handle. A “Service 4WD System” message come in the display. Have not attempted to get it fixed and researching what it could be. FDCM recall was applied and no working 4wd Low after. Service 4wd system warning.
Erratic operation of the dash-mounted mode selector switch. If the 4WD system is not working and the code C0327 is stored in the TCCM, you most likely have a faulty position sensor in the encoder motor. Various software updates depending on vehicle year and model.