B3133

All Door Unlock Circuit High

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$56–167 (est.)

Symptoms

Central locking does not unlock all doors
Periodic malfunctions of the central locking system
Alarm going off without unlocking doors

Causes

Broken or damaged wiring harness
Corrosion of contacts in connectors
Door control module malfunction
Problems with the central locking relay
Malfunction of door unlock solenoids

How to Fix

Check the integrity of the wiring harness in the door and along the body
Inspect and clean the contacts in the unlocking circuit connectors
Check the functionality of the central locking relay
Test door unlock solenoids
If necessary, replace the door control module

Related codes

B3132 B3134 B3100