B1085 GMC Possible Causes
- Faulty Speaker Output 7
- Speaker Output 7 harness is open or shorted
- Speaker Output 7 circuit poor electrical connection
- Audio Amplifier
First diagnose B1085 GMC code
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded terminals.
B1085 GMC Tech NotesB1085 01 Audio Output 7 Circuit Short to Battery (LR D-Pillar)
B1085 02 Audio Output 7 Circuit Short to Ground (LR D-Pillar)
B1085 04 Audio Output 7 Circuit Open (LR D-Pillar)
Cost of diagnosing the B1085 GMC code
Labor: 1.0The cost of diagnosing the B1085 GMC code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
B1085 GMC Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
B1085 GMC MeaningThe Up-Level radio (UQA) supplies 4 channels of audio to an amplifier. The amplifier supplies 6 input signal channels to 8 speakers. The radio sets a current status for this Diagnostic Trouble Code (DTC) when a short to ground, short to voltage or an open is detected on any of the 6 speaker channel outputs from the radio.
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