B1386

DTC B1383 / B1386: Seat Belt Buckle Sensor Circuit Shorted to Ground

DTC B1383: Driver Seat Belt Buckle Sensor Circuit Shorted to Ground

DTC B1386: Passenger Seat Belt Buckle Sensor Circuit Shorted to Ground

Wiring Diagram

Refer to B1382 DTC B1382 / B1385: Seat Belt Buckle Sensor Circuit Open:Advanced Air Bag.

DTC Detecting Condition and Trouble Area






DTC Troubleshooting



1.
Was "Air Bag Diagnostic System Check Flow" performed?
YES
Go to Step 2.
NO
Go to Air Bag Diagnostic System Check Flow:Advanced Air Bag.

2. Seat belt buckle sensor circuit check

With ignition switch turned OFF, disconnect applicable seat belt buckle sensor connector "L175" or "L176".
Disconnect SDM connector "L04".
Check for proper connection to SDM connector at terminals "L04-39" (for DTC B1383) or "L04-40" (for DTC B1386).
Check for proper connection to applicable seat belt buckle sensor connector at terminal in connector "L175" or "L176".
Measure resistance between "L176-2" terminal and body ground (for DTC B1383) or between "L175-2" terminal and body ground (for DTC B1386).
Special Tool

(A): 09932-76010





Is each measured resistance infinity?
YES
Go to Step 3.
NO
Repair short to ground in defective wire.

3. Seat belt buckle sensor circuit check

Measure resistance between "L176-1" and "L176-2" terminals (for DTC B1383) or between "L175-1" and "L175-2" terminals (for DTC B1386).
Special Tool

(A): 09932-76010





Is each measured resistance infinity?
YES
Replace defective seat belt buckle sensor, and recheck.
If this DTC is still detected, replace SDM.
NO
Repair short to ground in defective wire.

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 DTC Clearance:Advanced Air Bag
, if any.
- Repeat Air Bag Diagnostic System Check Air Bag Diagnostic System Check:Advanced Air Bag
to confirm that the trouble has been corrected.