Conditions for Setting the DTC
WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
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The telematics communication interface control module detects a short to voltage in the cellular phone microphone signal circuit for 10 s or greater.
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The telematics communication interface control module detects a short to ground in the cellular phone microphone signal circuit for 10 s or greater.
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The following conditions will set this DTC:
- The telematics communication interface control module detects an open/high resistance in the cellular phone microphone signal circuit for 10 s or greater.
- The telematics communication interface control module detects an open/high resistance in the microphone low reference circuit for 10 s or greater.