What causes B1637 on a Toyota?

Faulty left side airbag sensor Faulty left rear airbag sensor Faulty center airbag sensor assembly Open or shorted airbag sensor harness Poor electrical connection at the airbag sensor

How do I fix B1637 on a Toyota?

Confirm the code with a scan tool Check the airbag sensor connector and wiring Test the sensor circuit for opens and shorts Inspect the center airbag sensor assembly connections Replace the sensor only after the circuit tests fail Clear the code and retest

B1637 The airbag ECU has lost communication with the left rear airbag sensor

Q: What does B1637 mean on a Toyota?

B1637. The airbag ECU has lost communication with the left rear airbag sensor. The airbag warning light stays on and the system may not deploy correctly.. 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 B1637 mean on a Toyota?

B1637. The airbag ECU has lost communication with the left rear airbag sensor. The airbag warning light stays on and the system may not deploy correctly.. This Toyota-enhanced code applies to Toyota, Lexus and Scion models that use this code.

Common causes of B1637

Faulty left side airbag sensor
Faulty left rear airbag sensor
Faulty center airbag sensor assembly
Open or shorted airbag sensor harness
Poor electrical connection at the airbag sensor

How to fix B1637

Confirm the code with a scan tool
Check the airbag sensor connector and wiring
Test the sensor circuit for opens and shorts
Inspect the center airbag sensor assembly connections
Replace the sensor only after the circuit tests fail
Clear the code and retest