FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

DTC 02

DTC 2 - LOSS OF VCU COMMUNICATION WITH VIU -


DIAGNOSIS:
Communication error between VIU and VCU

SYMPTOM:
- Red LED illuminates
- OnStar (R) does not operate.






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