B1386

DTC B1383 / B1386

DTC Detecting Condition and Trouble Area






Circuit Diagram










DTC Troubleshooting

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

2. Seat belt buckle sensor circuit check

Confirm that ignition mode of keyless push start system is in "OFF".
Disconnect "L175" or "L176" connector.
Disconnect "L04" connector.
Check for proper connection to "L04-22" terminal (for DTC B1383) or "L04-20" terminal (for DTC B1386).
Check for proper connection to "L175" or "L176" connector.
Check the following points.
- Resistance between "A1" circuit and ground (DTC B1383): infinity
- Resistance between "A3" circuit and ground (DTC B1386): infinity
Special Tool

(A): 09932-76010





Are they in good condition?
YES -
Go to Step 3.
NO -
Repair short to ground in defective wire.

3. Seat belt buckle sensor circuit check

Check the following points.
- Resistance between "L176-1" and "L176-2" terminals (DTC B1383): infinity
- Resistance between "L175-1" and "L175-2" terminals (DTC B1386): infinity
Special Tool

(A): 09932-76010





Are they in good condition?
YES -
Replace defective seat belt buckle sensor, and recheck DTC. Removal and Installation
If this DTC is still detected, replace SDM. SDM Removal and Installation
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
, if any DTC is detected.
- Repeat Air Bag Diagnostic System Check Air Bag Diagnostic System Check
to confirm that the trouble has been solved.