B3137

All Door Lock Circuit Low

Severity

⚠️ Medium

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$33–167 (est.)

Symptoms

Central door locking does not work
Doors do not lock when button is pressed
Intermittent operation of locks
The fault indicator lights up

Causes

Broken or damaged wires in the harness
Short circuit in the circuit
Door control module (BCM) malfunction
Corrosion of contacts or connectors
Circuit fuse problems
Door lock malfunction

How to Fix

Check the central locking circuit fuse
Inspect the wiring harness for damage
Check the condition of contacts and connectors
Measure the voltage in the blocking circuit
Check the operation of the control module (BCM)
Replace faulty circuit elements

Related codes

B3138 B3136 B3139