Why is my 4WD switch not lighting up?
Why is my 4WD switch not lighting up?
From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. Turned the truck on today, 2003 Sierra 2500hd diesel and not only is my 4wd switch not lighting up but the service 4wd message is on the cluster.
Where is the dimmer switch on a car?
The headlight switch, commonly referred to as the dimmer switch, is the electronic switch that is responsible for controlling the vehicle’s headlight functions. They are most commonly found as a part of the combination switch lever that is usually mounted on the steering column,…
Why are there no lights on the selector switch?
I know this is an old thread but still very informational. On a 99 silverado 5.3 the switch lights would not come on also it was stuck in 2wd.l I replaced the actuator on the transfer case, checked the 4wd fuse in the cab, replaced the switch and the TCCM. Still no lights and no 4wd.
How to test the headlight switch on a GM pickup?
If this headlight switch tutorial does not apply to your GM pickup or SUV, there’s one more headlight switch tutorial for 1994 and older GM pickups that you can find here: How To Test The Headlight Switch (GM 1990-1994). Symptoms Of A Bad Headlamp Switch. What Tools Do I Need To Test The Headlight Switch? Where To Buy The Headlight Switch And Save.
What does the service 4WD light on a GM Truck mean?
The solid lights on the 4WD buttons are telling you where the transfer case encoder motor thinks it is, and blinks on the mode that it is trying to go to after you push the button. If it fails to move to the new position, it goes back to a solid light on the original position and illuminates the “SERVICE 4WD” light.
Why is my 4WD selector light not working?
If the 4WD selector light in your truck won’t work properly, the problem could be any number of things. However, don’t anticipate making a drive down to your local Chevrolet dealer or mechanic for help just yet.
What causes no 4 wheel drive or lights on?
In a lot of cases the power control to the actuator has been compromised, causing no actuator function. So that being said then you would have to be able to diagnose and trace circuits pertaining to the operation and function of the 4wd system.
I know this is an old thread but still very informational. On a 99 silverado 5.3 the switch lights would not come on also it was stuck in 2wd.l I replaced the actuator on the transfer case, checked the 4wd fuse in the cab, replaced the switch and the TCCM. Still no lights and no 4wd.
