B390A

Short Range Object Sensor Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Incorrect operation of the parking system
False collision warnings
No audible or visual cues when approaching objects

Causes

Sensor contamination
Wiring damage
Malfunction of the sensor itself
Module software failure

How to Fix

Check and clean the sensor from dirt
Check the integrity of wiring and connectors
Test the sensor using diagnostic equipment
Replace sensor if necessary
Update module software

Related codes

B390B B390C U0121