Invalid Data Received From Door Control Module A
The U0433 code means the vehicle's onboard diagnostic system has detected: Invalid Data Received From Door Control Module A. This is a low severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- moderate
- Estimated cost
- $150 - $500 (parts and labor)
Network codes mean modules are not communicating. You need a scanner that reads all systems to find the problem.
Check Price on AmazonAffiliate link -- we earn a commission at no extra cost to you.
Common Symptoms
- Driver door controls behaving erratically
- Window auto-up/down not working correctly
- Mirror adjustment inconsistent
- Door lock cycling on its own
Probable Causes (Ranked by Likelihood)
- Failed door control module Very High
- Door module receiving corrupted data High
- CAN bus wiring fault in door Moderate
- Door latch sensor issue Low
Step-by-Step Diagnostic Procedure
-
Scan door module for codes
-
Check door jamb wiring
-
Test door module inputs and outputs
-
Inspect door latch sensor
Frequently Asked Questions
Can I drive with U0433?
Yes. Door controls may be inconsistent but the door still opens and closes normally.
What causes U0433?
Usually a door module receiving corrupted data or door jamb wiring damage.
How much does U0433 cost to fix?
Typically $150 to $500.
Sources
This page is built from documented references. Verify against your own service info before repair work.
Explore More
Was this helpful?
Share carcodefinder.com with a friend who needs to decode their check engine light.