B3150

Driver Door Lock Switch Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Incorrect operation of the central locking
The lock/unlock buttons on the driver's door do not work
Hazard warning light flashes when attempting to lock/unlock
Error message on the dashboard

Causes

Broken or damaged wiring harness
Short circuit in the circuit
Driver's door lock switch malfunction
Body Control Module (BCM) Problems
Corrosion of contacts or connectors

How to Fix

Check the integrity of the wiring harness and contacts
Check the resistance and voltage in the switch circuit
Replace faulty door lock switch
Check and replace damaged wires
Reflash or replace BCM if necessary

Related codes

B3151 B3152 B3153