Why is check engine light on my '05 trailblazer? on 2005 Chevrolet Trailblazer

After analyzing, diagnostic codes are b0055, b0040, b0201, and p0128, what are they?

by in Waterloo, IA on July 31, 2014
1 answer
ANSWER by , July 31, 2014
try going to aamco for diag and est then post results u have multiple issues