SERVICE 4WD LIGHT (CODE C55)

Chevrolet Blazer

Tiny

umpire

October, 2, 2007 AT 8:05 PM

My 1999 Chevy Blazer with 121,000 miles and 4.3L has the Service 4WD light on. The blazer will not shift into any mode of 4 wheel drive. No lights appear on the switch. However the lights all come on ocassionaly or the correct light will come on. A friend (mechanic) with a scanner got a code of C0550. What is this?

1 Answer

Tiny

dennyp

October, 3, 2007 AT 9:55 PM

That code means if you have good power and ground to the transfer case module, the module is no good.

Please login or register to post a reply.

Pulling an Auto Trans? Easy Instructions