The pretensioner(BPT) located in the driver and passenger’s lower side of center pillar as above picture, together with an seat belt retractor units. The pretensioner seat belt helps to reduce the severity of injury to the front seat occupant by retracting the seat belt webbing. This prevent the occupant from thrusting forward and hitting the steering wheel(driver) or the instrument panel (passanger)when the vehicle crashes.
When open or increased resistance in the driver side pretensioner’s(DBPT) squib. When the SRS warning light remain lite up and with DTC code,this means open circuit or increased resistance between control module and Pretensioner harness.
Item
Detecting Condition
Possible Cause
DTC Strategy
? Driver Pretensioner open or increased resistance
? Poor contact in the connector or wiring harness.
? Open circuit in wiring harness.
? Open circuit in DBPT squib.
Enable Conditions
? Ignition "ON"
Threshold Value
? DBPT Resistance >= 6.0 Ohm ( more than 6O)
Diagnostic Time
Qualification
? More than 2 sec remaining
De-Qualification
? More than10 sec remaining
Test Condition
Resister (O)
Ignition OFF
1.9O = R = 4.7O