U0437
Invalid Data Received From Differential Control Module - Rear
U0437 is an OBD-II diagnostic trouble code meaning: Invalid Data Received From Differential Control Module - Rear. Common causes: damage to the wiring harness to the differential module, malfunction of the rear differential control module. Estimated repair cost: $56–278.
Symptoms
- Check Engine Light Is On
- Disabling the all-wheel drive system
- Incorrect operation of the rear differential
- Loss of power during acceleration
- Errors in the stabilization system
Causes
- Damage to the wiring harness to the differential module
- Malfunction of the rear differential control module
- Problems with the CAN bus
- Corrosion of contacts or connectors
- Software error in the module
How to Fix
- Check the integrity of wiring and connectors
- Read error codes from differential module
- Check voltage and resistance in power circuits
- Flash or replace the differential module if necessary
- Check the operation of the CAN bus
Related codes
Error U0437 by Vehicle Brand
FAQ
What does the U0437 code mean?
U0437 is an OBD-II diagnostic trouble code that indicates: Invalid Data Received From Differential Control Module - Rear
What causes a U0437 error code?
The most common causes of U0437 include: Damage to the wiring harness to the differential module; Malfunction of the rear differential control module; Problems with the CAN bus; Corrosion of contacts or connectors.
How do I fix a U0437 diagnostic trouble code?
To fix U0437: Check the integrity of wiring and connectors. Read error codes from differential module. Check voltage and resistance in power circuits. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0437?
Limited driving only, diagnose soon
How much does it cost to fix U0437?
The estimated repair cost for U0437 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat