DTC P0708 GMC

Microphone 3 (RR) Input Signal Circuit Bias Level Out of Range

Microphone 3 (RR) Input Signal Circuit Bias Level Out of Range

Description

The amplifier performs a self diagnostic of the microphone circuits 16 seconds after initial power up, then periodically every 400 milliseconds thereafter.

Cause and Solution

DTC B1277 1A, B127C 1A, B127D 1ADTC B1325 is not currentAn out of range voltage is detected on the specified plus or (-) signal circuit for more than 1.5 seconds

Video Guide

Duration: PT4M13S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: P0708
  • Brand: GMC
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