29th June 2020

s10forum
18

How do I reset my transfer case control module?

Cheap way - To clear the codes and reset the computer, pull the 5 amp TCCM fuse, located at the bottom of the fuse box. Wait at least a half hour, and then replace the fuse. Turn the ignition key to run, wait for the 4x4 lights to blink, and then turn off. Repeat 5 times, and then start the truck.

In this manner, what does Transfer Case Control Module do?

The Transfer Case Control Module (TCCM) is a specialty of the General Motor's 4WD operation. It controls the electronically-operated 4-wheel-drive system. All of its functions involve the shift – processing the shift request, executing it, and verifying the completion.

Secondly, how do I know if my 4wd switch is bad?

tHE EASIEST WAY TO TELL IS IF YOU LOOK AT IT AND IT'S BLINKING A YELLOW LIGHT IN 4WD OR IF YOU HAVE A RED LAMP ON IN THE NEUTRAL POSITION. THIS SWITCH GOING BAD IS PRETTY DAMN COMMON. I KEEP A GOOD ONE IN MY DASH POCKET AND AT LEAST 2 GOOD ONES AT HOME.

What happens when transfer case motor goes bad?

If the transfer case fails during operation, the vehicle may be left permanently in neutral or the transfer case may bind. If the transfer case is malfunctioning electronically it can cause erratic shifts from high to low gear and from two-wheel drive to four-wheel drive.

How do you test a 4 wheel drive switch?

How to Test a Four-wheel Drive
  1. Locate the four-wheel drive high button on the dash.
  2. Drive the vehicle as normal and press the button or shift into 4Hi.
  3. Turn the vehicle to the left and right while moving.
  4. Locate the four-wheel drive low button on the dash or shifter.
  5. Stop the vehicle.
  6. Engage 4Lo by pressing the button or shifting.
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