DTC P0686 Audi

ECM PCM Power Relay Control Circuit Low

ECM PCM Power Relay Control Circuit Low

Description

Sensed circuit voltage, >5.5 V

Cause and Solution

Check fuses
Check ECM power supply relay
Check for signal, voltage and ground
Check harness for open or short
Check connector for damage.

Video Guide

Duration: PT3M56S | Uploaded: 2020-05-01

Diagnostic Info

  • DTC Code: P0686
  • Brand: Audi
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