B1346

DTC B1342 / B1346

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. Lap pretensioner circuit check
Confirm that ignition mode of keyless push start system is in "OFF".
Remove center pillar lower trim of applicable side. Service and Repair
Disconnect "L284" or "L310" connector.
Check for proper connection to "L284" or "L310" connector.
Connect special tools (A), (B) and (C) to "L284" or "L310" connector disconnected in Step 3).
Special Tool

(A): 09932-76010

(B): 09932-75010

(C): 09932-78310

Check DTC with ignition mode of keyless push start system in "ON".
Is DTC B1342 or DTC B1346 detected?
YES
Go to Step 3.
NO
Replace defective lap pretensioner. Removal and Installation
3. Lap pretensioner circuit resistance check
Disconnect special tools from applicable lap pretensioner connector.
Disconnect "L04" or "L05" connector.
Check for proper connection to "L04-7" and "L04-8" terminals in (for DTC B1342) or "L05-19" and "L05-18" terminals (for DTC B1346).
Release shorting bar in SDM connector inserting release tool included in special tool (A).
Special Tool

(A): 09932-76010

Check the following points.
Resistance between "L04-7" and "L04-8" terminals (DTC B1342): infinity
Resistance between "L05-19" and "L05-18" terminals (DTC B1346): infinity

Are they in good condition?
YES
Substitute a known-good SDM and recheck DTC. SDM Removal and Installation
NO
Repair shorted wire in defective circuit.

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.