Test J: Poor Reception/No Sound - Satellite Audio
PINPOINT TEST J: POOR RECEPTION/NO SOUND - SATELLITE AUDIONormal Operation
Digital signals are received by the satellite radio antenna and sent to the satellite digital audio receiver system (SDARS) module, which then converts the signals and provides analog audio signals to the audio control module (ACM), the accessory protocol interface module (APIM), or to the rear entertainment module (RETM), depending on vehicle configuration.
A short to ground typically has no effect on the antenna signal. However, an open in the antenna circuit will result in no sound from the satellite radio system. A short to voltage in the antenna circuit can have varying effects on the system.
- DTC B1031 (SDARS Satellite Antenna Open) - sets when an open or high resistance is detected in the satellite antenna circuit. This DTC can be either continuous or on-demand.
- DTC B1032 (SDARS Satellite Antenna Short) - sets when a short to ground or short to voltage is detected in the satellite antenna circuit. This DTC can be either continuous or on-demand.
This pinpoint test is intended to diagnose the following:
- Obstructions to the line of sight
- Satellite radio antenna cable
- Satellite radio antenna
- SDARS module
