DTC B1E1A[12] Far Side Airbag Circuit Short to Battery Voltage (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) Clear the DTC with a 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 B1E1A[12] being set as a current failure. Is a DTC set?

Yes

=>Go to Far side airbag circuit check.

No

Go to Intermittent conditions of SRS control.

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

3. Far side airbag circuit check

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

2) Disconnect the far side airbag harness connector (R60).

3) Connect the SRS alternative load and SRS adapter for load tool to the far side airbag harness connector (R60).

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


SST: 5-8840-3269-0 - SRS adapter for load tool


SST: 5-8840-2856-0 - SRS alternative load

4) Turn ON the ignition switch.

5) Observe the DTC information with a scan tool for DTC B1E1A[12] being set as a current failure. Is a DTC set?

Yes

=>Go to Inspection for short to power supply in far side airbag deployment current output (High) circuit.

No

Replace the far side airbag.

Refer to "8.Restraints 8B.Airbag Systems far side air bag removal".

Refer to "8.Restraints 8B.Airbag Systems far side air bag installation".

=>Go to Repair verification.

4. Inspection for short to power supply in far side airbag deployment current output (High) circuit

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

2) Inspect the far side airbag deployment current output (High) circuit between the SRS control unit (pin 14 of R6) and the far side airbag (pin 1 of R60) for a short to the power supply circuit. 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 Inspection for short to power supply in far side airbag deployment current output (Low) circuit.

No

Repair the circuit as necessary.

=>Go to Repair verification.

5. Inspection for short to power supply in far side airbag deployment current output (Low) circuit

1) Inspect the far side airbag deployment current output (Low) circuit between the SRS control unit (pin 13 of R6) and the far side airbag (pin 2 of R60) for a short to the power supply circuit. 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 replacement.

No

Repair the circuit as necessary.

=>Go to Repair verification.

6. 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.

7. 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) Perform a test drive.

5) Observe the DTC information with a scan tool.