Circuit/System Testing
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition On, with a scan tool command the Scan Tool IPC display test ON and OFF. The ABS indicator should turn ON and OFF.
- If the ABS warning lamp does not turn ON and OFF, replace the IPC.