Circuit/System Verification
WARNING: This page is about a different car, the 2017 GMC Yukon XL, 2017 GMC Yukon, 2017 Chevrolet Tahoe, and 2017 Chevrolet Suburban. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON, engine OFF.
- Install a scan tool.
- Ensure no other ECBM or TCCM codes are set.
- If any other EBCM or TCCM DTC's are set, diagnose them first.