Tranny code

[Stealth3Litre]

I checked for codes today for my tcu. I did get one clear one before my hand got tired. I got a code 86 which is incorrect gear ratios. What could be causing this. Transdude any help you could give would be greatly appreciated.

 

[transdude]

Incorrect gear ratio codes are usually caused by a slipping trans component, a pulse generator problem or (rarely) a bad TCU.

-John

 

[Stealth3Litre]

Thank you John at least I know were to start testing for the problem.