U0440

Invalid Data Received From Pedestrian Alert Control Module

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

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

U0401 U0420 U0121