20 Most Recent 2002 Chevrolet TrailBlazer - Page 6 Questions & Answers

Did you use the original key and lock cylinder? They are coded for the security system.

This isn't that easy just to say fix ? This is a complex system ! The headlamp switch is a low voltage input to the BCM - body control module . The BCM then controls two relays low beam or high beam ! Don't either high or low work ? There could be DTC'S - diagnostic trouble codes stored for circuit problems ! The fix if your not familiar with this ,would be to take your vehicle to a qualified repair shop !

it will have to be done with a pass thru device or taken to a dealer. there should be some local shops in your area that would have a pass thru they can be purchased off of the tool trucks. regardless probably going to be $100-150 to have it programmed

Timing chain worn , probably . Have it checked before you wreck the engine . Chevy Malibu Exhaust camshaft solenoid P0014

Do you have any codes in the ECM ? Have you checked the neutral safety switch ?

It's probably a loose ground wire some place, inspect all the wires and shake them to see if u can find where it is

I haven't looked up the heater hose on your vehicle. Usually I take a utility knife and split the hose, then peel it off the fitting. Jerking the hose around on the heater core end is not a good idea. Usually the hose will form around that fitting, use a utility knife, on the hose ends. You can take heater hose to auto store, show them what size and how long. You could have heater hose fittings that I'm not familiar with, I'd have to look at it, in that case.

If this is for the illumination bulbs in the cluster, that would be the park light fuse in the fuse panel. This should be in a panel under the driver's side dash. At least, that is the set-up for earlier model GM vehicles.

Program mode , What gets in program mode ? PCM / BCM . I/C Any DTC'S - diagnostic trouble codes ? You'll need to do a little better job explaining if you would like help .

call locksmith or if you have paper work like title take to dealer and have a key made cheaper