What causes B1774 on a Toyota?

Failed occupant detection sensor Pressure sensor harness open or shorted Poor electrical connection Failed occupant classification ECU Low system voltage

How do I fix B1774 on a Toyota?

Disconnect the battery and wait before touching SRS circuits Confirm the code and check the passenger seat sensor Inspect and reseat the occupant sensor connectors Test the pressure sensor circuit Replace the sensor only after tests fail

B1774 Occupant detection pressure sensor circuit reads a fault

Q: What does B1774 mean on a Toyota?

B1774. Occupant detection pressure sensor circuit reads a fault. 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 B1774 mean on a Toyota?

B1774. Occupant detection pressure sensor circuit reads a fault. This Toyota-enhanced code applies to Toyota, Lexus and Scion models that use this code.

Common causes of B1774

Failed occupant detection sensor
Pressure sensor harness open or shorted
Poor electrical connection
Failed occupant classification ECU
Low system voltage

How to fix B1774

Disconnect the battery and wait before touching SRS circuits
Confirm the code and check the passenger seat sensor
Inspect and reseat the occupant sensor connectors
Test the pressure sensor circuit
Replace the sensor only after tests fail