B3925

Incorrect Environmental Identifier Received from HVAC Control Module

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Incorrect temperature display on the control panel
Incorrect operation of the climate system
Check Engine Light Illuminates

Causes

Faulty temperature or humidity sensors
Damaged HVAC module wiring harness
Software glitch in HVAC module
Poor contact in connectors

How to Fix

Check the serviceability of temperature and humidity sensors
Inspect the HVAC module wiring harness and connectors for damage.
Scan the HVAC module for errors
If necessary, reflash or replace the HVAC module

Related codes

B3926 B3927 U0155