Pinpoint Test U: The Family Entertainment System Is Inoperative/Does Not Operate Correctly
Information and Entertainment System
Pinpoint Tests
Pinpoint Test U: The Family Entertainment System Is Inoperative/Does Not Operate Correctly
Refer to Wiring Diagram Set 130, Audio System/Navigation for schematic and connector information. Diagrams By Number
Normal Operation
The Rear Entertainment Module (RETM) routes audio signals to the Audio Control Module (ACM). In single-play mode, the ACM plays the DVD audio on all speakers. In dual-play mode, the audio to the rear speakers is muted and the RETM continues to control the rear audio source to the headphones.
If the vehicle is equipped with the SYNC system, the audio signals from the Accessory Protocol Interface Module (APIM) are routed through the RETM to the ACM. This allows for single-play and dual-play to include SYNC system audio sources.
For vehicles without navigation, the satellite radio signals are also routed to the RETM after passing from the Satellite Digital Audio Receiver System (SDARS) module through the APIM.
This pinpoint test is intended to diagnose the following:
- Incorrect customer setting
- Damaged DVD
- Wiring, terminals or connectors
- RETM
- ACM
PINPOINT TEST U: THE FAMILY ENTERTAINMENT SYSTEM IS INOPERATIVE/DOES NOT OPERATE CORRECTLY
NOTICE: Use the correct probe adapter(s) when making measurements. Failure to use the correct probe adapter(s) may damage the connector.
NOTE: Before diagnosing the family entertainment system, make sure a known good DVD is installed.
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U1 IDENTIFY THE SYMPTOM
- Operate the audio system in DVD single-play mode and observe the DVD audio. Refer to the Owner's Literature.
- Does the DVD audio operate correctly?
Yes
GO to U2.
No
GO to Pinpoint Test I. Pinpoint Test I: Poor Quality/Distorted/No Sound - Family Entertainment System
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U2 CHECK THE OPERATION OF THE DVD VIDEO
- Operate the audio system in DVD single-play mode and observe the DVD audio.
- Does the DVD video operate correctly?
Yes
The system is operating correctly at this time. The concern was either caused by an incorrect system setting, or the customer using a damaged DVD. INFORM the customer that pressing the power button or the VIDEO button while a DVD is playing can cause the display to go blank.
No
GO to U3.
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U3 CHECK FOR LOST COMMUNICATION DTCs
- Using the scan tool, retrieve all continuous DTCs from all modules.
- Is DTC U0184, U0184:00, U0196, or U0196:00 present in any module?
Yes
REFER to DTC Charts. Diagnostic Trouble Code Tests and Associated Procedures
No
GO to U4.
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U4 CHECK FOR CORRECT RETM OPERATION
- Disconnect the RETM connector.
- Check for:
- corrosion
- damaged pins
- pushed-out pins
- Connect the RETM connector and make sure it seats correctly.
- Is the concern still present?
Yes
INSTALL a new RETM. REFER to Rear Entertainment Module (RETM) Service and Repair. TEST the system for normal operation.
No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.
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