Speedometer Cluster Issues (What a Surprise!)?

[1Kurgan1]

I just picked up an 01 2500HD 6.0. I know of the numerous issues with stepper motors and other speedometer cluster issues. But what happened has me questioning if it's just the cluster. Anyways, on with the details.

 

- Has 191k

- Speedometer worked fine (but was 12mph low at all speeds)

- Tach was accurate (but would randomly jump to 5k then back to normal)

- Gas gauge bounced around (but after a while seemed to be accurate)

- Volts read 3V high

- Temp was on (or close)

- Trans temp was at 275 with the truck off (and maxed the instant you hit accesory power)

- Oil Pressure worked

- ABS Light was on (found some brake issues, so must have been working)

- CE light was off (but dummy came on during accessory power on)

- Cruise Control Light Worked

- Message Center Worked

- Turn Signals Worked

- PRNDL Lights all there

- All Backlights Worked

 

I got it home and it had a light bar wired right to the battery that didn't have a switch. So I picked up a switch and hooked that up. Did nothing else with it. Then had to bring the wife to work. Fired it up and Speedo, Tach, Gas, Volts, Trans, Temp were all bottomed out. ABS light wasn't on, Message Center won't turn on, PRNDL lights are gone, and Cruise Control Light doesn't come on.

 

Oil Pressure still works, as do blinkers, CE dummy light (still shows during accesory power), and backlights.

 

Seems strange that all of that died at once. Or that the ABS and Cruise lights don't work, but the CE Light does? Is this just a cluster issue? Or is there more I should be looking into?

[txab]

I would check all the body grounds for starters

[1Kurgan1]

I'll probably try running some new grounds this weekend just to see what happens.Can't go wrong having too many grounds. Anything else I should look for?