B1802 Short to ground in the driver side squib circuit
What does B1802 mean on a Toyota?
B1802. Short to ground in the driver side squib circuit. The steering wheel airbag loop reads a ground short and the SRS light stays on. This Toyota-enhanced code applies to Toyota, Lexus and Scion models that use this code.
Common causes of B1802
- Damaged squib wire in the airbag circuit
- Faulty spiral cable at the steering wheel
- Corroded or loose squib connector
- Failed center airbag sensor assembly
- Short or open in the airbag harness
How to fix B1802
- Disconnect the battery and wait before touching SRS circuits
- Confirm the code with an SRS-capable scan tool
- Inspect and reseat the squib connector
- Test the squib circuit for opens and shorts
- Replace the airbag part only after tests fail