DTC B130D[07] Cut Off Switch Malfunction (Air Bag (Driver/Passenger/Side/Roof/Knee/Far Side))

1. SRS system check

Refer to "58.SRS Control 8A.Troubleshooting(Air Bag (Driver/Passenger/Side/Roof/Knee/Far Side)) diagnostic system check-SRS controls".

2. Current DTC check

1) Connect the scan tool.

2) Turn OFF the ignition switch for 15 seconds or more.

3) Turn ON the ignition switch.

4) Observe the DTC information with a scan tool for DTC B130C[07] being set as a current failure. Is a DTC set?

Yes

=>Go to Passenger side SRS airbag cut off switch harness connector inspection.

No

Go to Intermittent conditions of SRS control.

Refer to "209.Restraints 22D.Symptom Intermittent conditions of SRS control".

3. Passenger side SRS airbag cut off switch harness connector inspection

1) Turn OFF the ignition switch for 15 seconds or more.

2) Inspect for poor connections at the passenger side SRS airbag cut off switch harness connector (pins 1 and 2 of B70). Is the connection status normal?

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 Passenger side SRS airbag cut off switch internal circuit inspection.

No

Repair the connections as necessary.

=>Go to Repair verification.

4. Passenger side SRS airbag cut off switch internal circuit inspection

1) Disconnect the passenger side SRS airbag cut off switch harness connector (B70).

2) Connect a fused jumper wire between the passenger side SRS airbag cut off switch (+) input circuit (pin 2 of B70) and the passenger side SRS airbag cut off switch (-) input circuit (pin 1 of B70).

Refer to "RHD SRS airbag (Driver/Passenger/Side/Curtain/Knee/Far Side)" in the ETM (wiring diagram). (Open using the ETM viewer.).

3) Turn ON the ignition switch.

4) Observe the DTC information with a scan tool. Is DTC B130D[07] set?

Yes

Replace the passenger side SRS airbag cut off switch.

Refer to "9.Body, Cab, Accessories 9C.Electrical Control, Entertainment passenger airbag cut off switch removal".

Refer to "9.Body, Cab, Accessories 9C.Electrical Control, Entertainment passenger airbag cut off switch installation".

=>Go to Repair verification.

No

=>Go to Inspection for open circuit and short circuit in passenger side SRS airbag cut off switch (+) input circuit.

5. Inspection for open circuit and short circuit in passenger side SRS airbag cut off switch (+) input circuit

1) Inspect the passenger side SRS airbag cut off switch (+) input circuit between the SRS control unit (pin 18 of R6) and the passenger side SRS airbag cut off switch (pin 2 of B70) for the following. Is the result normal?

  • Open circuit
  • Short to ground
  • Short to the power supply circuit
  • High resistance

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 Inspection for open circuit in passenger side SRS airbag cut off switch (-) input circuit.

No

Repair the circuit as necessary.

=>Go to Repair verification.

6. Inspection for open circuit in passenger side SRS airbag cut off switch (-) input circuit

1) Inspect the passenger side SRS airbag cut off switch (-) input circuit between the SRS control unit (pin 17 of R6) and the passenger side SRS airbag cut off switch (pin 1 of B70) for an open circuit or high resistance. Is the result normal?

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 circuit as necessary.

=>Go to Repair verification.

7. SRS control unit harness connector inspection

1) Inspect for poor connections at the SRS control unit harness connector (pins 17 and 18 of R6). 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 replacement.

No

=>Go to Repair verification.

8. SRS control unit replacement

Note

  • Perform the VIN programming and ECU lock after replacing the SRS control unit.

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

=>Go to Repair verification.

9. Repair verification

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.