I went to go to work today everything was fine made it a few miles down the road and lost all my gauges besides the tach,speedo, I lost my radio,all door lights,locks,and it says service air suspension,service 4wd system anyone have any ideas I've been checking grounds but haven't found anything questionable yet

 

So hears the update sent the abs computer module in GM said it was bad the repair company says it's good, reinstalled still getting left rear abs code GM says sensor is good,wiring is good still have every warning light on the dash on. They have had my h2 going on 2 months I've got it back twice and didn't make it a mile and all the dash lights come on. This all started when they replaced all my brake lines.

 

So let's come at this backwards: what IS working? Engine continues to run, tranny shifts okay? Exterior lights, turn signals, horn? Brakes, power steering? Should be clues here.

 

Engine and transmission work truck starts, speedometer,tech work, lost radio,door locks,windows,says service brake system,service 4x4 system,service air suspension system,traction control light is on,brake light is on, security light is on,all other gages I lost they all went to there lowest settings and the low gas light is on. Only code is for the left rear wheel speed sensor. No power seats or heated seats. Runs drives and all exterior lighting works

 

Some interesting info here starting with post 13: Wierd electrical issue - lots of stuff stopped working today | GMTNation
Seems the ABS on GM platforms is tied in to some of your symptoms. This guy found a bad ground on his ABS module that fixed his problems and while yours aren't exactly the same it may be a good place to look. Also with yours being a DMax conversion there may be other things going on that the rest of us don't have.

 

[QUOTE=flyday58;341151]Some interesting info here starting with post 13: Wierd electrical issue - lots of stuff stopped working today | GMTNation
Seems the ABS on GM platforms is tied in to some of your symptoms. This guy found a bad ground on his ABS module that fixed his problems and while yours aren't exactly the same it may be a good place to look. Also with yours being a DMax conversion there may be other things going on that the rest of us don't have.[/QUOTE
This is a stock h2 2004 no Dmax conversion. My grounds are all good we went trough the grounds if the one going to abs was bad it takes out the fuel pump too it runs and drives fine. Brakes, powersteering all working. The grounds in engine bay if I took them off the vehicle would not start. Today we took speed sensor harness from passenger side and plugged it in to drive everything is checking out OK,going to load test wires from abs module to rear driver's side sensor, still only pulling the left rear speed sensor code with a GM tech 2

 

Guess you sold the "05blackduramax"!
What is the code you are getting?

 

Does yours look like this?

 

Yes it looks like that.

 

Only code is left rear speed sensor.