What causes B1797 on a Toyota?

Failed occupant classification ECU Open or short in the seat sensor harness Corroded seat connector Seat weight sensor out of range Low system voltage during calibration

How do I fix B1797 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 seat sensor connectors Perform the zero point calibration after repairs Replace the ECU only after tests fail

B1797 Zero point calibration of the occupant classification sensor is incomplete

Q: What does B1797 mean on a Toyota?

B1797. Zero point calibration of the occupant classification sensor is incomplete. The seat weight system has no stored reference and may suppress the passenger airbag. 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 B1797 mean on a Toyota?

B1797. Zero point calibration of the occupant classification sensor is incomplete. The seat weight system has no stored reference and may suppress the passenger airbag. This Toyota-enhanced code applies to Toyota, Lexus and Scion models that use this code.

Common causes of B1797

Failed occupant classification ECU
Open or short in the seat sensor harness
Corroded seat connector
Seat weight sensor out of range
Low system voltage during calibration

How to fix B1797

Disconnect the battery and wait before touching SRS circuits
Confirm the code with an SRS-capable scan tool
Inspect and reseat the seat sensor connectors
Perform the zero point calibration after repairs
Replace the ECU only after tests fail