1) Turn OFF the ignition switch for 15 seconds or more.
2) Inspect the left side front airbag sensor (+) circuit between the SRS control unit (pin 12 of B9) and the left side front airbag sensor (pin 2 of C23) for the following. Is the result normal?
Refer to "LHD SRS airbag (Driver/Passenger/Side/Curtain/Knee)" in the ETM (wiring diagram). (Open using the ETM viewer.).
Refer to "RHD SRS airbag (Driver/Passenger/Side/Curtain/Knee)" in the ETM (wiring diagram). (Open using the ETM viewer.).
Refer to "RHD SRS airbag (Driver/Passenger/Side/Curtain/Knee/Far Side)" in the ETM (wiring diagram). (Open using the ETM viewer.).
Caution
Yes
=>Go to Inspection for open circuit and short circuit in left side front airbag sensor (-) circuit.
No
Repair the circuit as necessary.
1) Inspect the left side front airbag sensor (-) circuit between the SRS control unit (pin 20 of B9) and the left side front airbag sensor (pin 1 of C23) for the following. Is the result normal?
Refer to "LHD SRS airbag (Driver/Passenger/Side/Curtain/Knee)" in the ETM (wiring diagram). (Open using the ETM viewer.).
Refer to "RHD SRS airbag (Driver/Passenger/Side/Curtain/Knee)" in the ETM (wiring diagram). (Open using the ETM viewer.).
Refer to "RHD SRS airbag (Driver/Passenger/Side/Curtain/Knee/Far Side)" in the ETM (wiring diagram). (Open using the ETM viewer.).
Caution
Yes
=>Go to Left side front airbag sensor harness connector inspection.
No
Repair the circuit as necessary.
1) Inspect for poor connections at the left side front airbag sensor harness connector (pins 1 and 2 of C23). Is the result normal?
Refer to "LHD SRS airbag (Driver/Passenger/Side/Curtain/Knee)" in the ETM (wiring diagram). (Open using the ETM viewer.).
Refer to "RHD SRS airbag (Driver/Passenger/Side/Curtain/Knee)" in the ETM (wiring diagram). (Open using the ETM viewer.).
Refer to "RHD SRS airbag (Driver/Passenger/Side/Curtain/Knee/Far Side)" in the ETM (wiring diagram). (Open using the ETM viewer.).
Yes
=>Go to SRS control unit harness connector inspection.
No
Repair the connections as necessary.
1) Inspect for poor connections at the SRS control unit harness connector (pins 12 and 20 of B9). Is the result normal?
Refer to "LHD SRS airbag (Driver/Passenger/Side/Curtain/Knee)" in the ETM (wiring diagram). (Open using the ETM viewer.).
Refer to "RHD SRS airbag (Driver/Passenger/Side/Curtain/Knee)" in the ETM (wiring diagram). (Open using the ETM viewer.).
Refer to "RHD SRS airbag (Driver/Passenger/Side/Curtain/Knee/Far Side)" in the ETM (wiring diagram). (Open using the ETM viewer.).
Yes
Replace the left side front airbag sensor.
Refer to "8.Restraints 8Z.Seat Belt and SRS Airbag Electrical Control front airbag sensor removal".
Refer to "8.Restraints 8Z.Seat Belt and SRS Airbag Electrical Control front airbag sensor installation".
No
Repair the connections as necessary.
1) Reconnect all of the disconnected harness connectors.
2) Clear the DTC with a scan tool.
3) Turn OFF the ignition switch for 15 seconds or more.
4) Perform a test drive.
5) Observe the DTC information with a scan tool. Is a DTC set?
Yes
=>Go to SRS control unit replacement.
No
Note
Refer to "8.Restraints 8Z.Seat Belt and SRS Airbag Electrical Control SRS control unit removal".
Refer to "8.Restraints 8Z.Seat Belt and SRS Airbag Electrical Control SRS control unit installation".
Refer to "8.Restraints 8Z.Seat Belt and SRS Airbag Electrical Control SRS control unit setting".
Procedure completion
1) Reconnect all of the disconnected harness connectors.
2) Clear the DTC with a scan tool.
3) Turn OFF the ignition switch for 15 seconds or more.
4) Turn ON the ignition switch.
5) Observe the DTC information with a scan tool.