B3130

All Doors Unlock Circuit

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Doors do not unlock automatically
Central locking does not work correctly
Hazard warning light flashes when attempting to unlock

Causes

Open or short circuit in wiring harness
Malfunction of door unlock solenoids
Body Control Module (BCM) Problems
Corrosion of contacts or connectors
Software glitches

How to Fix

Check wiring harness for damage
Test door unlock solenoids
Check power and ground circuit
Scan the BCM for errors
If necessary, replace faulty components

Related codes

B3131 B3132 B3133