Originally Posted by crowbait
TIPM. 99%. They corrode inside between the layers of circuit boards and where the pins go into the plugs. Horrible design! Bought one of these trucks a while back. Ended up replacing the TIPM and 6 of the plugs on the bottom. NOT a 15 minute repair but the truck has been running 5 years now. Lots of small wires need lots of patients.


A lot more than that. There are many small mini relays just like the common Bosh relays that fail.