Restraint Troubleshooting

B1515

B1516

B1517

B1518

DTC Description

The Seat Belt Buckle Switch (BS) circuit consists of the SRSCM and two BS. The SRSCM sets above DTC(s) if it detects the BS faults. This system decides whether the driver or passenger seat belt is buckled or not.

DTC Detecting Condition






Specification






Schematic Diagram






Terminal & Connector Inspection
Refer to the DESCRIPTION in this TROUBLESHOOTING part.

Inspection Procedure

1. PREPARATION
Refer to the DESCRIPTION in this TROUBLESHOOTING part.

2. CHECK THE SEAT BELT BUCKLE SWITCH (BS)
(1) Measure current between the terminal 3 of BS and 32(31) of SRSCM harness connector(B).

Specification (current) : 12 ~ 18 mA (Buckled status), 4 ~ 7 mA (Unbuckled status)

(2) Is the wiring harness normal?
Yes
- Go to next stop.
No
- Replace the BS.

3. CLEAR THE DTC AND CHECK THE VEHICLE AGAIN
Refer to the DESCRIPTION in this TROUBLESHOOTING part.