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. |
Diagnostic Fault Information
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
Infra Red Module Control | 1 | 1 | -- | -- |
Remote Infra Red Signal (+) | 2 | 2 | 2 | -- |
Remote Infra Red Signal (-) | 2 | 2 | 2 | -- |
Infra Red Module Ground | -- | 1 | -- | -- |
1. Infra Red Module Inoperative -- remote control inoperative. 2. Remote control inoperative. | ||||
Circuit Description
The rear seat entertainment (RSE) system works with the vehicle's audio system. The RSE system consists of the radio with DVD player, a video display screen, audio/video jacks, two wireless headphones, and a remote control. To use the remote control, aim it at the transmitter window at the rear of the overhead console and press the desired button. The infrared module receives the signals from the remote control and sends the desired function via the IR remote control signal and return circuits to the radio. The radio responds by performing the specific function requested by the remote control.
Reference Information
Schematic Reference
Radio/Navigation System Schematics
Connector End View Reference
Entertainment/Communication Connector End Views
Electrical Information Reference
Scan Tool Reference
Circuit/System Verification
Important: Test or replace the remote control batteries before performing the circuit/system test.
Ignition ON, radio ON, rear seat entertainment (RSE) ON, verify the system operates with a known good remote control.
| ⇒ | If the known good remote control operates properly, replace the suspect remote control. |
Circuit/System Testing
- Ignition OFF, disconnect the harness connector at the infrared module.
- Ignition ON, radio ON, RSE ON, verify a test lamp illuminates between the signal circuit terminal 16 and ground.
- Ignition ON, radio OFF, RSE OFF, verify a test lamp does not illuminate between the signal circuit terminal 9 and ground.
- Ignition OFF, verify a test lamp illuminates between B+ and the signal circuit terminal 6.
- Ignition OFF, disconnect the X3 harness connector at the radio.
- Verify a test lamp does not illuminate between B+ and the signal circuit terminal 5.
- If all circuits test normal, replace the infrared module.
| ⇒ | If the test lamp does not illuminate, test the signal circuit for a short to ground or and open/high resistance. If the circuit tests normal, replace the radio. |
| ⇒ | If the test lamp illuminates, test the signal circuit for a short to voltage. If the circuit tests normal, replace the radio. |
| ⇒ | If the test lamp does not illuminate, test the signal circuit for a short to voltage or an open/high resistance. If the circuit tests normal, replace the radio. |
| ⇒ | If the test lamp illuminates, test the signal circuit for a short to ground. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for radio replacement, setup, and programming. |
