B1157

DTC B1157

DTC Detecting Condition and Trouble Area






DTC Confirmation Procedure

1) Push engine switch to change ignition mode to "ON".
2) Push engine switch to change ignition mode to "OFF".
3) Push engine switch to change ignition mode to "ON".

DTC Troubleshooting

1. DTC recheck

Clear DTC. DTC Clearance
Perform DTC Confirmation Procedure
and then recheck DTC.

Is DTC B1157 still detected?
YES -
Go to Step 2.
NO -
End. (Air bag has deployed in past. (DTC is not cleared))

2. DTC recheck

Replace SDM. SDM Removal and Installation
Perform DTC Confirmation Procedure
and then recheck DTC.

Is DTC B1157 still detected?
YES -
Substitute a known-good BCM and recheck DTC.
NO -
End. (SDM was faulty)