if the bulbs dont work on the dash, how did you check them to be ok??

how did you check for power on the board in the back of the cluster????

it sounds like a failed cluster

Roy

Answered by ASEMaster6371 (expert)
24,973 answers provided

I checked for continuity across the contact pins of the bulbs with a multimeter and also ohmed the illumination circuit on the back of the cluster.

Response from ozarkrooster
1 question asked

good move..

if there is power to the cluster from the fuse, which i assume is good from the rest of the bulbs orking, then you have to look around the circuit board for a break in the connection. we used to be ale to replace the printed circuit boards but not anymore.

did you verify the ground??? try attaching a external ground to see if they light up.

Roy

Answered by ASEMaster6371 (expert)
24,973 answers provided

I believe I checked all the grounds at c2220 with my power probe and they appear to be good.

Response from ozarkrooster
1 question asked

Is the orange with a black stripe the power signal for the illumination from lcm to the cluster?

Response from ozarkrooster
1 question asked

according to the diagram, it is light blue/red

it is powered by the light control module.

Roy

Answered by ASEMaster6371 (expert)
24,973 answers provided

Which connector going to the back of the cluster is the blue/red wire and what is the pin# I believe they are C2220a and C2220b. Also it is an Orange/black wire that illuminates the backlighting for the heater controls.

Response from ozarkrooster
1 question asked