B1708
DTC B1708The Buckle Pretensioner circuit consists of the SRSCM and two Buckle Pretensioners (BUPT). The SRSCM sets above DTC(s) if it detects short to ground on the BUPT circuit.
DTC Detecting Condition:
DTC DETECTING CONDITION
Schematic Diagram:
SCHEMATIC DIAGRAM
TERMINAL & CONNECTOR INSPECTION
1. Visually inspect all connectors related to the affected circuit for damage and secure connection.
2. Inspect terminals for damage and corrosion.
CAUTION: Avoid damaging connectors during the inspection process.
3. Are any problems found?
NO - Go to next step (INSPECTION PROCEDURE).
YES - After repairing the trouble part, check whether DTC occurs or not.
INSPECTION PROCEDURE
1. PREPARATION OF INSPECTION
1. Turn the ignition switch to LOCK.
2. Disconnect the battery negative cable from the battery and wait for at least 3 minutes.
3. Remove the DAB module and disconnect the DAB connector.
4. Disconnect the connectors of the PAB, SAB, CAB, BPT, FIS and SIS.
5. Disconnect the SRSCM connector.
2. CHECK SHORT TO GROUND
a. Measure resistance between the terminal 1 of BUPT harness connector and chassis ground.
specification(resistance) : infinite
b. Is the measured resistance within specification?
YES - Check the BUPT Module.
NO - Repair or replace the wiring harness between the BUPT and the SRSCM.
3. CHECK THE BUPT MODULE
a. Replace the Buckle Pretensioner(BUPT) with a new one.
b. Install the DAB module and connect the DAB connector.
c. Connect the connectors of the PAB, SAB, CAB, BPT, BUPT, FIS and SIS.
d. Connect the SRSCM connector.
e. Connect the battery negative cable to the battery.
f. Connect a Hi-Scan(Pro) to the data link connector.
g. Turn the ignition switch to ON and check the vehicle again.Does Hi-Scan (Pro) indicate any DTC related to Buckle Pretensioner(BUPT)?
YES - Go to next step.
NO - Replace BUPT module.
4. CLEAR THE DTC AND CHECK THE VEHICLE AGAIN
1. Install the DAB module and connect the DAB connector.
2. Connect the connector of the PAB, SAB, CAB, BPT, BUPT, FIS and SIS.
3. Connect the SRSCM connector.
4. Connect the battery negative cable to the battery.
5. Connect a Hi-Scan(Pro) to the data link connector.
6. Turn the ignition switch to ON.
7. Clear the DTC stored in the SRSCM memory with the Hi-Scan(Pro)
8. Turn the ignition switch to LOCK and wait for at least 30 seconds.
9. Turn the ignition switch to ON and wait for at least 30 seconds.
10. Check the vehicle again with the Hi-Scan(Pro). Does the above DTC(s) go off?
YES - Problem is intermittent or was repaired and SRSCM memory was not cleared.
NO - Replace the SRSCM with a new one and then check the vehicle again. At this time, if the vehicle normally operates with a new one, the fault may be the SRSCM. Replace the SRSCM.