B1055 GMC - Audio Output 4 Right Rear Circuit

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3
Table of contents

B1055 GMC Possible Causes

  • Faulty Speaker Output 4
  • Speaker Output 4 harness is open or shorted
  • Speaker Output 4 circuit poor electrical connection
  • Audio Amplifier

How do I fix code B1055 GMC?

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 connector's pins.
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Tech Notes

B1055 01 Audio Output 4 Right Rear Circuit Short to Battery
B1055 02 Audio Output 4 Right Rear Circuit Short to Ground
B1055 04 Audio Output 4 Right Rear Circuit Open

Cost of diagnosing the B1055 GMC code

Labor: 1.0

The cost of diagnosing the B1055 GMC code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

Possible Symptoms

  • Engine Light ON (or Service Engine Soon Warning Light)

B1055 GMC Description

The 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.
OBDII Code B1055 Gmc - Audio Output 4 Right Rear Circuit - AutoCodes.com

More Information

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