I need to locate the 4 wheel drive control module on a 2002 Chevy Silverado. can you tell me where to look

Can't be to sure with yours. It maybe the switch. On my 2002, I found I had a Transfer Case Control Module issue. Shopped around and found one on Amazon for half the price the local box stores wanted. I would Google this before starting to buy a bunch of parts.

most if all problems with the chevy 4x4 at the beginning of problems are the electronics the switches they put crap in the truck and wonder why so many problems to anyone whom sees a problem at the start should first and i mean first clean all the contacts on 4x4 switches the two on the dash and then one on transfer case the one inside the dash sits where people sit drinks like coffee then it runs down dash and onto the switch inside dash you need to take it out clean it good i have fixed more 4x4 problems with doing this first you will not hear this from the dealerships they will tell you you need to replace them when all it is that they need a good cleaning i also take the switch on dash apart and clean contacts then the lights work please try contact cleaner first and more times over it will fix your problems

You need to have the dealer scan the control module to see what codes show in memory

sorry to tell you this but there is no fuel pump reset button on the 1999 chevy silverado

what sounds like is happening is the front end is not disengaging, it will not hurt it to drive without the module, but you need to find out why the front diff. actuator is not releasing. their is a shift motor on the transfer case, module and switch in the cab, and actuator on the front diff. all are susceptable to water, I would suggest getting a manual on it to aid in diagnostics

I had a similar problem with the Service 4 Wheel Drive light which came on intermittently then became more consistent in the message center display. It would go into 4 wheel drive if the message center did not display the Service 4 Wheel Drive message in the message center, but not when the message was displayed. I found the transfer case switch module in the dash was defective, and it has been working with no other problems for three years.

1 remove negative battery cable 2 remove air bag module from steering wheel, this is usually bolted thru from the back of the steering wheel 3 remove steering wheel retaining nut. 4 Using a steering wheel puller pull steering wheel from steering shaft.

I had a similar problem and had to have the 4 wheel drive serviced. It need new grease. the grease i had was old and it was causing the gears not engage cleanly thus causing the grinding sound until they were realigned.

You first have to disarm and remove the air bag (unscrews with bolts from behind the steering wheel) and then you will see the screws for the switches. Only the silverado awitches will work.

There is a solinoid on the front differential that shifts the front in and out of 4wd, that could be it.