B3925
Incorrect Environmental Identifier Received from HVAC Control Module
B3925 is an OBD-II diagnostic trouble code meaning: Incorrect Environmental Identifier Received from HVAC Control Module. Common causes: faulty temperature or humidity sensors, damaged hvac module wiring harness. Estimated repair cost: $56–167.
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
Error B3925 by Vehicle Brand
FAQ
What does the B3925 code mean?
B3925 is an OBD-II diagnostic trouble code that indicates: Incorrect Environmental Identifier Received from HVAC Control Module
What causes a B3925 error code?
The most common causes of B3925 include: Faulty temperature or humidity sensors; Damaged HVAC module wiring harness; Software glitch in HVAC module; Poor contact in connectors.
How do I fix a B3925 diagnostic trouble code?
To fix B3925: Check the serviceability of temperature and humidity sensors. Inspect the HVAC module wiring harness and connectors for damage.. Scan the HVAC module for errors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with B3925?
Limited driving only, diagnose soon
How much does it cost to fix B3925?
The estimated repair cost for B3925 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat