Code result
B0004
Driver Frontal Deployment Loop Resistance High
Moderate severity
What it means
The SRS module measured a higher than expected resistance in the driver frontal airbag deployment circuit. Causes include a partially open connection, corroded contacts, or a damaged clock spring conductor.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Clock spring conductor partially worn
highOne of the most commonly reported causes for this code — check this first.
Oxidized airbag connector pins
mediumA plausible cause — test and verify before replacing parts.
Driver airbag module internal fault
lowLess common, but worth ruling out after the more likely causes.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose B0004 freeNo credit card required