DTC P1723 Chevrolet

Lost Communication With HVAC Control Module

Lost Communication With HVAC Control Module

Description

The system voltage is between 9-16 volts. The vehicle power mode requires serial data communication to occur.

Cause and Solution

Use the DTC Descriptor list above to determine the module which is not communicating.If there are multiple non-communicating modules choose the one closest to the data link connector (DLC).Use Data Link References to determine if the module us

Video Guide

Duration: PT3M52S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: P1723
  • Brand: Chevrolet
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