B323B

Lower Hands Free Sensor Signal Invalid

Severity

✅ Low

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Hands Free system malfunction
Voice control is intermittent
Reduced functionality of the multimedia system

Causes

Hands Free sensor malfunction
Open or short circuit in wiring harness
Sensor connection problems
Software glitch in the Hands Free module

How to Fix

Check the sensor connection and wiring harness for damage
Test the Hands Free sensor for functionality
Replace the sensor if necessary
Update Hands Free module software

Related codes

B323A B323C U2100