DTC B1008 Hummer
MICU Lost Communication With Gauge Control Module (A T Message)
MICU Lost Communication With Gauge Control Module (A T Message)
Description
Communication between the MICU and Gauge Control Module NOTE: If you are troubleshooting multiple DTCs, be sure to follow the instructions in B-CAN System Diagnosis Test Mode A.
Cause and Solution
Faulty battery or charging system
Loose or poor connections between the MICU and gauge control module
Open in the communication circuit between the MICU and the gauge control module
Faulty MICU
Faulty gauge control module
Video Guide
Diagnostic Info
- DTC Code: B1008
- Brand: Hummer