Circuit/System Testing
- Ignition OFF, disconnect the X1 harness connector at the rear seat audio (RSA) controller.
- Test for less than 5 ohms between the ground circuit terminal 6 and ground.
- If greater than the specified range, test the ground circuit for an open/high resistance.
- Radio ON, test for battery voltage between the battery positive voltage circuit terminal 5 and ground.
- If less than the specified range, test the voltage circuit for a short to ground or an open/high resistance.
- If all circuits test normal, replace the rear seat audio controller.