Circuit/System Testing
WARNING: This page is about a different car, the 2009 GMC Envoy and 2009 Chevrolet TrailBlazer. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition OFF, disconnect the harness connector at the appropriate DVD display.
- Ignition OFF, test for less than 5.0 ohms between the ground circuit terminal 7 and ground.
- If greater than specified range, test the ground circuit for an open/high resistance.
- Ignition ON, test for B+ between the B+ circuit terminal 9 and ground.
- If less than specified value, test the B+ circuit for a short to ground or an open/high resistance.
- If all circuits test normal, replace the DVD player.