• | 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. |
Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
---|---|---|---|---|
Infrared Module Supply Voltage | 1 | 1 | -- | -- |
Infrared Module Ground | -- | 1 | -- | -- |
Left DVD Audio Signal (+) | 2 | 2 | 2 | -- |
Right DVD Audio Signal (+) | 3 | 3 | 3 | -- |
DVD Audio Common Signal (-) | 4 | 4 | 4 | -- |
Left Infrared Audio Signal (+) | 5 | 5 | 5 | -- |
Right Infrared Audio Signal (+) | 6 | 6 | 6 | -- |
Infrared Audio Low Reference (+) | 7 | 7 | 7 | -- |
1. Infra Red Module Inoperative -- headphones inoperative. 2. No or distorted left audio when listening to DVD. 3. No or distorted right audio when listening to DVD. 4. No or distorted audio on both channels when listening to DVD. 5. No or distorted left audio when listening to rear seat audio. 6. No or distorted right audio when listening to rear seat audio. 7. No or distorted audio on both channels when listening to rear seat audio. |
The rear seat entertainment (RSE) system consists of two, 2-channel wireless headphones that are dedicated to the system. Channel 1 is dedicated to the video screen, while Channel 2 is dedicated to rear seat audio (RSA) selections. The infrared module receives voltage from the rear audio/HVAC module when the RSA in ON. The rear audio/HVAC module provides audio inputs to the infrared module which are broadcast to the headphones. Ground for the infrared module is provided at G300.
Radio/Navigation System Schematics
Entertainment/Communication Connector End Views
Video Entertainment System Description and Operation
Note: Test or replace the headphone batteries before performing the circuit/system verification.
⇒ | If the power indicator lamp does not illuminate, replace the wireless headphones. |
⇒ | If all of the headphones are inoperative, or the sound is distorted, refer to Circuit/System Testing. |
⇒ | If only one of the headphones is not producing sound, or the sound is distorted, replace the appropriate set of headphones. |
⇒ | If greater than specified range, test the ground circuit for an open/high resistance. |
⇒ | If less than specified range, test the control circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the rear seat audio module. |
• | Left DVD audio signal (+) - terminal 1 |
• | DVD audio common (-) - terminal 2 |
• | Right DVD audio signal (+) - terminal 3 |
⇒ | If AC voltage is not present, test the signal circuit for a short to voltage, short to ground, or an open/high resistance. If the circuit tests normal, replace the radio. |
• | Left infrared audio signal (+) - terminal 9 |
• | Infra red audio low reference (-) - terminal 10 |
• | Right infrared audio signal (+) - terminal 11 |
⇒ | If AC voltage is not present, test the signal circuit for a short to voltage, short to ground, or an open/high resistance. If the circuit tests normal, replace the RSA. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for radio and RSA replacement, setup, and programming |