C0111

Motor Relay On Failure

Severity

🔴 High

Can you drive?

Do not drive — repair immediately

Approx. repair cost

$33–111 (est.)

Symptoms

Check engine light is on
Problems with the passive safety system
Inability to activate seat belt pretensioners

Causes

Faulty motor relay
Open or short circuit in wiring harness
Problems with the control unit
Contact corrosion

How to Fix

Check the condition of the motor relay and replace if necessary
Check the integrity of the wiring harness and contacts
Diagnose the control unit for faults
Clean contacts from corrosion

Related codes

B0100 B0101 B0102