Just another cluster issue - RPM & MPG dead

[Torsen]

Well, the revcounter and MPG meter stopped working some time ago. I took the cluster out and checked batteries, reading 3 volts. I checked and resolder bad looking joints. Refitted and still not working. Then, I resetted service leds and now the INSPECTION light is flashing. Oh, it's an E30 318is. What sould I check next?

Help much appreciatted.

Thank you.

[ti_guy]

Last time this happened to me , it was just a fuse. U did check that. right?

[Torsen]

Yep, fuse #10 going strong, all other related stuff working. I think that the failure is in the cluster itself, but no clues on where to look for.

[Torsen]

I've bought a secondhand (reputedly working) cluster and the failure is still there. Now:

-I've kept my "old" coding plug. Could the problem lie there?

-How can I test the connectors? As long as fuel cons is working ok in OBC II, I understand fuel rate signal is fine.

Ideas?

Thank you.

[Torsen]

SOLVED! I tried a mate's coding plug and everything works.

Thank you for your help.