U0440
Invalid Data Received From Pedestrian Alert Control Module
U0440 is an OBD-II diagnostic trouble code meaning: Invalid Data Received From Pedestrian Alert Control Module. Common causes: pedestrian warning module malfunction, damage to the wiring harness to the module. Estimated repair cost: $56–167.
Symptoms
- No sound warning for pedestrians
- Error message on the dashboard
- Malfunction of other systems related to the CAN bus
- Problems with the vehicle's hybrid/electric system
Causes
- Pedestrian warning module malfunction
- Damage to the wiring harness to the module
- Problems with the CAN bus
- Body control module malfunction
- Software error in the module
How to Fix
- Diagnostics of the CAN bus for errors
- Checking module power and grounding
- Inspect the wiring harness to the pedestrian warning module
- Checking and flashing the module
- Replacing the pedestrian warning module if necessary
Related codes
Error U0440 by Vehicle Brand
FAQ
What does the U0440 code mean?
U0440 is an OBD-II diagnostic trouble code that indicates: Invalid Data Received From Pedestrian Alert Control Module
What causes a U0440 error code?
The most common causes of U0440 include: Pedestrian warning module malfunction; Damage to the wiring harness to the module; Problems with the CAN bus; Body control module malfunction.
How do I fix a U0440 diagnostic trouble code?
To fix U0440: Diagnostics of the CAN bus for errors. Checking module power and grounding. Inspect the wiring harness to the pedestrian warning module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0440?
Limited driving only, diagnose soon
How much does it cost to fix U0440?
The estimated repair cost for U0440 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
See also: Russian version · NationStat