B3155

Passenger Door Lock Switch Circuit

Severity

✅ Low

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$33–111 (est.)

Symptoms

The lock switch on the front right door does not work
Door locks may not respond to commands from the key fob or central switch
Door ajar alarm on the dashboard even if the door is closed

Causes

Open or shorted door wiring harness
Door lock switch malfunction
Corroded or damaged connectors
Body Control Module (BCM) Problem

How to Fix

Check the condition of the front right door lock switch
Inspect the wiring harness in the doorway for damage
Check connectors for corrosion and connection reliability
Check the continuity of the circuit with a multimeter
If necessary, replace the switch or repair the harness

Related codes

B3150 B3156 B3160