What causes B1843 on a Toyota?

Second stage curtain squib wire shorted to power Faulty right curtain shield airbag assembly Corroded or loose squib connector Failed center airbag sensor assembly Pinched harness at the headliner

How do I fix B1843 on a Toyota?

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

B1843 Short to positive in the curtain shield squib right second step circuit

Q: What does B1843 mean on a Toyota?

B1843. Short to positive in the curtain shield squib right second step circuit. The right roof airbag second stage loop sees battery voltage and the SRS light stays on. Applies to Toyota, Lexus and Scion models that use this code.

Category: Body
Severity: Airbag Light
Applies to: Toyota, Lexus and Scion models that use this code

What does B1843 mean on a Toyota?

B1843. Short to positive in the curtain shield squib right second step circuit. The right roof airbag second stage 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 B1843

Second stage curtain squib wire shorted to power
Faulty right curtain shield airbag assembly
Corroded or loose squib connector
Failed center airbag sensor assembly
Pinched harness at the headliner

How to fix B1843

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