B1708

DTC B1708 PASSENGER BUCKLE PRETENSIONER SHORT TO GROUND

DESCRIPTION

This system decides whether the seat belt of the driver is locked and then prevent the belt pretensioner from deploying on crash.

The above DTC is recorded when a short to ground is detected in the buckle pretensioner circuit.

Detecting Condition:

DETECTING CONDITION

INSPECTION OF CONNECTOR AND TERMINAL

1. Check all the connectors related to the DTC for contact condition visually.
2. Check the connector and the terminal.
1. Check the connector for connection securely.
2. Check the terminal for contact condition,deterioration,erosion and elasticity.

CAUTION: Do not deform the connector for revising contact.

3. Are confirmed trouble on the connector and the terminal?

YES - After repairing the trouble part, check whether DTC occurs or not.

NO - Check the buckle pretensioner circuit.

CHECK BUCKLE PRETENSIONER CIRCUIT

1. Preparation
1. Disconnect the negative(-) terminal cable from the battery,and wait 30 seconds.
2. Remove the DAB module.
3. Disconnect the connector of the PAB, SAB, CAB, SIS, FIS and BPT.




4. Disconnect the SRSCM connector.




2. Check buckle pretensioner circuit

For the connector(on the SRSCM side) between the SRSCM and buckle pretensioner, measure the resistance between the buckle pretensioner high(+) and body ground.

Resistance : Infinity

YES - Check the buckle pretensioner.

NO - Replace the harness between the SRSCM and buckle pretensioner.

CHECK BUCKLE PRETENSIONER




Check the buckle pretensioner resistance.

Resistance(BUPT) : 1.5 ≤ R ≤ 5.7 Ohm

YES - From the result of the above inspection, the malfunctioning part can now be considered normal.

NO - Replace the buckle pretensioner.