B1943 Short to positive in the selectable force limiter squib right circuit
What does B1943 mean on a Toyota?
B1943. Short to positive in the selectable force limiter squib right circuit. The right seat belt pretensioner loop sees battery voltage and the SRS light stays on. This Toyota-enhanced code applies to Toyota, Lexus and Scion models that use this code.
Common causes of B1943
- Force limiter squib wire shorted to power
- Faulty right seat belt assembly
- Corroded or loose seat belt connector
- Failed center airbag sensor assembly
- Harness pinched at the seat belt anchor
How to fix B1943
- 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