OnStar Description and Operation (UE1 with IOB/IO6)
This OnStar system consists of the following components:
Telematics communication interface control module
OnStar three button assembly
Micr
DTC B0997
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
appro
NOTE: This is GENERAL information. This article is not intended to be
specific
to any unique situation or individual vehicle configuration. For modelspecific
information see appropriate articles where available.
GENERAL ALIGNMENT CHECKS
Before adjusting wheel alignment, check the following:
Each