What it means
Fault on the key-operated switch that manually disables the passenger airbag (typically used when fitting a rear-facing child seat).
At a glance
- Usually lights the airbag (SRS) or body-system warning light
How it works
The restraint module monitors the key-operated passenger restraint disable switch, which lets an occupant manually disable the passenger airbag on vehicles equipped with this feature. This code sets when the switch circuit or its state does not match the module’s expected criteria, so the selected airbag status may not be recognized correctly.
Common causes
Most likely first.
- Failed passenger restraint disable switch
- Worn or damaged switch contacts
- Loose or corroded connector
- Open or short in switch wiring
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
How to diagnose it
- Scan the restraint module for related codes and freeze-frame or event data to see when the switch fault was logged.
- Check the switch position and compare it with the passenger-airbag status shown by the vehicle, following the owner’s instructions for operating the key switch.
- Inspect the switch face, key slot, wiring, and connectors for physical damage, looseness, or corrosion.
- With the vehicle wiring information, check that the switch changes circuit state as it is operated and compare results with the manufacturer’s specification.
- If the switch and wiring pass, verify that the restraint module recognizes the switch state using the manufacturer’s diagnostic procedure.
Common fixes
- Secure or clean the switch connector.
- Repair damaged wiring or an open or short in the switch circuit.
- Replace the worn or failed passenger restraint disable switch.
- Repair or replace the restraint control module if it fails to recognize a verified switch signal.
Can I keep driving?
The passenger airbag may not follow the selected switch position, so do not rely on the switch when placing a rear-facing child seat in the front passenger seat. Follow the vehicle’s seating guidance and have the restraint system checked promptly.
A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together
This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.