Check engine light came on and the service code came up as U1000. Any ideas? on 2002 Chevrolet Trailblazer

No state of health U1000

by in New Haven, IN on June 16, 2013
Get Your Car Fixed at a RepairPal Certified Shop.
We certify shops based on expertise, quality work, and verified customer reviews
1 answer
ANSWER by , June 20, 2013
How many modules have the U1000 code set in them, and what module does it say isn't reporting? Please list evrything you can and I can try to get you an answer today or tomorrow.