Circuit/System Verification
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. However, it is still accessible from the selected car via links, so may be relevant.
- Repair any brake system related DTCs before performing this diagnostic.
- Verify that DTC P0572 or P0573 is not set as current.
- If either DTC is set, refer to DTC P0572 or P0573 .
- Verify that DTC P0703 is not set.
- If DTC P0703 is set as current, replace the BCM. Clear the DTC and road test the vehicle. If DTC P0703 resets, replace the ECM/PCM.