Circuit/System Verification
WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Engine running with the hood open, accessories OFF, measure and record the battery voltage. The voltage should be between 12.6-15.0 V.
- If not within the specified range, refer to DC Power Conversion Test .
- Observe the scan tool transmission data ignition voltage parameter. The reading should be between 12.6-15.0 V.