DTC 1381

DTC B1381 (No.1381): Driver Seat Belt Buckle Sensor Circuit Open

Wiring Diagram:

Wiring Diagram

CAUTION:
- Be sure to perform Air Bag Diagnostic System Check: Advanced Air Bag before starting diagnosis according to flow.
- When measurement of resistance or voltage is required in this flow, use a tester along with a correct terminal adapter from special tool (Connector test adapter kit).
- When a check for proper connection is required, refer to Inspection of Intermittent and Poor Connections: Advanced Air Bag.
- If there is open circuit in the air bag wire harness, connector or terminal is found damaged, replace the wire harness, connector and terminal as an assembly.

DTC Will Set when
The current measured at driver seat position sensor circuit is above a specified value for specified time.

Flow Test Description
Step 1: Check if driver seat belt buckle sensor circuit is open in floor harness.
Step 2: Check if driver seat belt buckle sensor circuit is open in driver seat harness.
Step 3: Check if malfunction is in driver seat belt buckle sensor.

Step 1-3:

DTC Troubleshooting

NOTE: Upon completion of inspection and repair work, perform the following items.

- Reconnect all air bag system components and ensure all components are properly mounted.
- Clear DTCs referring to DTC Clearance for SDM: Advanced Air Bag and DTC Clearance for OCM: Advanced Air Bag, if any.
- Repeat Air Bag Diagnostic System Check: Advanced Air Bag to confirm that the trouble has been corrected.