Circuit/System Testing
WARNING: This page is about a different car, the 2007 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
- Center the balance and fade adjustment on the radio.
- If adjustment of the fade and balance eliminates the concern, review the operation of the radio with the customer.
- Verify that the wireless headphones are set to the proper channel and are working properly.
- If the wireless headphones are not operating properly, go to Video Entertainment System Wireless Headphone Inoperative .
- Disconnect the J2 connector of the rear seat audio (RSA) control module. Connect a DMM between the suspect speaker output circuits (input to the RSA) from the radio. Turn ON the radio and verify there is AC voltage present.
- If AC voltage is not present, go to Speakers Inoperative - One or More .
- Disconnect the J1 harness connector from the RSA module. Verify that a test lamp illuminates between the RSA module B+ circuit terminal J1-5 and ground.
- If the test lamp does not illuminate, test the B+ circuit for a short to ground or an open/high resistance.
- Test for less than 1.0 ohm of resistance between the ground circuit terminal J1-6 and ground
- If greater than the specified range, test the ground circuit for an open/high resistance.
- If all circuits test normal, replace the RSA module.