C0321

Motor A Or B Circuit Failure

Severity

🔴 High

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$56–167 (est.)

Symptoms

Airbag light is on
Belt pretensioners do not work
SRS disabled

Causes

Open or short circuit in motor A/B circuit
Squib malfunction
Wiring Harness Problems
SRS control unit malfunction
Contact corrosion

How to Fix

Diagnostics of a circuit using a scanner and multimeter
Checking the integrity of the wiring harness
Inspect contacts and connectors for corrosion
Replacing a faulty squib or SRS control unit if necessary
Error reset and system check

Related codes

B1000 B1001 C1234