Test I: The Satellite Audio Is Inoperative/Does Not Operate Correctly - Vehicles With DVD Entertainment

PINPOINT TEST I: THE SATELLITE AUDIO IS INOPERATIVE/DOES NOT OPERATE CORRECTLY - VEHICLES WITH DVD ENTERTAINMENT

Normal Operation
The satellite digital audio receiver system (SDARS) module receives voltage through circuit CBP13 (GY/BN) and ground through circuit GD148 (BK/YE). Digital signals are received by the satellite radio antenna and sent to the SDARS module, which converts the signals to analog and sends them to either the rear entertainment module (RETM), or the accessory protocol interface module (APIM) (if equipped).

The satellite audio signals utilize separate circuitry from the remaining audio signals. This allows the audio control module (ACM) to distinguish between satellite audio and SYNC or DVD audio, in order to provide for more dual-play options.

If there is an open in the satellite antenna circuit, there will be no satellite audio. The ACM display will indicate a satellite antenna concern (the method varies according to the type of ACM) when the audio system is operated in satellite radio mode. To diagnose an open in the satellite antenna circuit, GO to Pinpoint Test J. Test J: Poor Reception/No Sound - Satellite Audio

Circuits VME41 (GN/OG), RME41 (BU/BN), VME42 (VT/BN), and RME42 (YE/BU) transmit left and right channel audio signals. When there is a fault on any of these circuits, the audio quality is reduced. If the circuits for a specific channel are shorted together, loss of audio on that entire channel will occur. This can be detected by using the SDARS module tones test.







This pinpoint test is intended to diagnose the following:
- Subscription status
- Wiring, terminals or connectors
- SDARS module
- RETM
- APIM (if equipped)
- ACM

I1:

I2-I8:

I8-I11:

I11-I14:

I15-I16: