Engine/Transmission (1998.5 - 2002) ABS light, Brake light, No overdrive????

[Jetpilot]

Here is my problem..... Two days ago my brake light and ABS light both illuminated. They will come on and go off every 10-30 seconds. The trucks ABS function is applying sometimes (not always) when brakes are applied. Now yesterday my truck doesn't want to go into overdrive. I know that the transmission is fine as I can manually apply 4th via a wired switch I have. Also the TC does not lock in 3rd or 4th unless I use a manual lockup switch.



So any ideas? I am thinking one of the ABS sensors might be the culprit, but any help is appreciated.



Thanks,



Doug

 

[B.G. Smith]

Lights etel

The pickup for the speedo and ABS for rear wheels is in the top of the diff. housing. The speed signal goes through the PCM and controlls TC lockup and probably OD. That would be the first thing I would look at. bg