Diagnostic Aids
WARNING: This page is about a different car, the 2007 GMC Sierra and 2007 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- A short to ground on the RAP mode control circuit from the BCM will set DTC B1475.
- Short to voltage in the BCM RAP mode control circuit will cause the sunroof/SEO RAP relay to operate when the RAP feature is disabled.
- An open/high resistance in the BCM RAP mode control circuit will cause the sunroof and/or SEO RAP relay to not operate when the RAP feature is enabled.
- The fused battery feed circuit for the load side SEO RAP relay may be labeled as EAP fuse in the underhood fuse block.
- The SEO RAP relay is permanently soldered to the junction block - left I/P and is non-serviceable.