GMC Repair: Repair Question, gmc sierra, repair question


Question
My speedometer lights went out on my 2001 GMC Sierra along with my lights that illuminate my A/C knobs. I checked all of the fuses and they are good I was thinking it was a bulb but it would have to be more than one. Please help!

Answer
Hi
You can check the power going to either module (terminal E on the HVAC control module gray wire) or terminal A-7 on the IP cluster (Gray wire). If neither is hot, there is an electrical junction block locatedon the drivers side around where your left foot rests. This is where all the interior lamp circuits "break off".
This junction block could be at fault. The wires from the block to either module may be at fault.
I hope this helps.
Follow post back if needed.
Good Luck
Pawl