Electrical issue?

Hi,

Do all of these things go on and off at the same time? I ask because I don't see a connection between them. All have different ground locations, which was my first guess, and they receive power from different places.

The AWD and 4wd can be related if there is a faulty wheel speed sensor.

Let me know. Also, let me know if there are other electrical concerns.

Joe

I think we are dealing with two different issues. The idea that the ABS and service 4wd come on leads me to think there is an issue with one of the wheel speed sensors.

I do, however, have another question. When you say shift lamp, are you referring to the shift indicator lamp which shows the gear you are in?

I just went through the schematics again. I don't see a correlation in the wiring that would cause the things to flicker on and off.

Let me know about the shift lamp. If it is the gear indicator, then we need to look at the transmission range sensor.

Also, you may want to consider having the can-bus scanned for diagnostic trouble codes. CAN stands for controller area network. Basically, the different modules are all tied together via a few wires and communicate with each other. This type of scan will retrieve codes regardless of the module storing them.

Here is a link that explains how it's done:

https://www.2carpros.com/articles/can-scan-controller-area-network-easy

Let me know.

Joe