3.
Are confirmed trouble on the connector and the terminal?
▶ After repairing the trouble part, check whether DTC occurs or not.
▶ Check the buckle pretensioner circuit.
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.
Condition | Probable cause |
- Short circuit is squib wire harness(to ground) - Buckle pretensioner malfunction - SRSCM malfunction | - Buckle pretensioner - SRSCM - Wire harness |
Check all the connectors related to the DTC for contact condition visually.
Check the connector and the terminal.
Check the connector for connection securely.
Check the terminal for contact condition,deterioration,erosion and elasticity.
Do not deform the connector for revising contact.
Are confirmed trouble on the connector and the terminal?
▶ After repairing the trouble part, check whether DTC occurs or not.
▶ Check the buckle pretensioner circuit.
Check the buckle pretensioner resistance.
Belted : R = 1kΩ ± 10%
Unbelted : R = 400Ω ± 10%
▶ From the result of the above inspection, the malfunctioning part can now be considered normal.
▶ Replace the buckle pretensioner.
Preparation
Disconnect the negative(-) terminal cable from the battery,and wait 30 seconds.
Remove the DAB module.
Disconnect the connector of the PAB,SAB,CAB,SIS,FIS and BPT.
Disconnect the SRSCM connector.
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 : ∞
▶ Check the buckle pretensioner.
▶ Replace the harness between the SRSCM and buckle pretensioner.
