What does Service 4WD?
Vehicles that have four wheel drive systems tend to have a separate light to indicate an issue with the system. Usually labeled “Service 4WD”, when this light comes on, a code will be stored in the computer’s memory to help identify any issues. Depending on the problem, the four wheel drive may be disabled temporarily.
Is the service 4WD light coming on again?
After a few months of ownership, I started having the ‘service 4wd’ light blink on for a few seconds at random times. The dealer flashed the TSB concerning the problem and it went away. A few weeks ago the light started coming on again, concurrently with the ‘traction control off’ light.
Why does the 4 wheel drive light come on?
Vehicles that have four wheel drive systems tend to have a separate light to indicate an issue with the system. Usually labeled “Service 4WD”, when this light comes on, a code will be stored in the computer’s memory to help identify any issues. Depending on the problem, the four wheel drive may be disabled temporarily.
Why does my Jeep have a service light?
Faulty wheel position sensors or brake switch can also cause these symptons. Faulty wheel position sensors or brake switch can also cause these symptons. Click to expand… Thanks, I’ll mention this to my service writer if the problem persists. I have an excellent dealer who seems to be interested in getting things right.
Why is the traction control off light coming on again?
The dealer flashed the TSB concerning the problem and it went away. A few weeks ago the light started coming on again, concurrently with the ‘traction control off’ light. Happened only while braking and after many miles of highway speed driving. Dealer diagnosed a problem as the transfer case shift motor.
Why does the service 4WD light come on?
When the Service 4WD indicator lights up it’s telling us there’s a problem related to the Transfer Case Shift Control Module, the appropriate Diagnostic Trouble Code has been stored in the control module’s memory, and it’s gonna shutdown 4×4 operation to prevent additional damage.
What to do when your four wheel drive light is on?
If your service light is on or if your four wheel drive system doesn’t seem to be working properly, ask one of our certified technicians to help you diagnose any problems. The most popular service booked by readers of this article is Warning Light is on Inspection.
When does the 4WD light come on on a Dodge Ram?
This bulletin applies to the following vehicles: The bulletin applies ONLY to vehicles with an electronic transfer case (sales code DH8, DH9 or DK3) built before January 6, 2012 (MDH 0106XX). When the Service 4WD light comes on, it also shuts down the 4WD capability for the remainder of the drive cycle.
Why is my DTC 4WD light not working?
Some people say they have an intermittent illumination of the Service 4WD light. Upon inspection the technician may find DTC C0374 set. The customers may also say they have an intermittent erratic operation of the 4WD. You may notice the problem may occur on rough road or when wet conditions are present.