For 1990-2009 cars only
Diagnostic Instructions
| • | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
| • | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
| • | Diagnostic Procedure Instructions provide an overview of each diagnostic category. |
Reference Information
Schematic Reference
Radio/Navigation System Schematics
Connector End View Reference
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
Radio ON, verify clear audio is heard from each audio speaker with the RSA system OFF.
| ⇒ | If audio is inoperative from one or all speakers, refer to Speaker Malfunction. |
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.
- Radio ON, test for battery voltage between the battery positive voltage circuit terminal 5 and ground.
- If all circuits test normal, replace the rear seat audio controller.
| ⇒ | If greater than the specified range, test the ground circuit for an open/high resistance. |
| ⇒ | If less than the specified range, test the voltage circuit for a short to ground or an open/high resistance. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
