DTC B1053[52] Non Deployment Mode (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 B1053[52] being set as a current failure. Is a DTC set?

Yes

Perform the VIN programming and ECU lock with the scan tool.

Refer to "8.Restraints 8Z.Seat Belt and SRS Airbag Electrical Control SRS control unit setting".

=>Go to ECU lock check.

No

=>Go to Repair verification.

3. ECU lock 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. Is a DTC set?

Yes

=>Go to SRS control unit replacement.

No

=>Go to Current DTC follow-up check.

4. Current DTC follow-up 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. Is a DTC set?

Yes

=>Go to SRS control unit replacement.

No

=>Go to Repair verification.

5. SRS control unit replacement

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.

6. 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.