Enhanced Testing

B1378 - Side Airbag Front-Driver: Resistance Too High






Operation
A driver side airbag (DSAB) module, located in the left side of driver's seat, contains a folded cushion together with an inflator unit (as pictured above). The firing system for the side airbag consists of a SRSCM installed in the middle of the vehicle and two satellite sensors, one on the left-hand side and one on the right. Only the SRSCM is capable of controlling the seat-belt pretensioner systems or releasing the airbags in the vehicle. The satellite sensors act as intelligent acceleration sensors, and as backups for the center airbag controller. Both satellites continuously report current system status, of the left and right-hand sides of the vehicle, to the SRSCM.

Self-diagnosis System
A self-diagnosis circuit is built into the SRS control module, When the ignition switch is turned ON, the SRSCM indicator light turns on and turns off, after about six seconds, if the system is operating normally. If the light does not come If the light does not turn on or does not turn back off after six second, or if it lights while driving, an abnormality in the system is indicated. The system must be inspected and repaired as soon as possible. For bettery serviceability, the cause of the malfunction is stored in memory. The data link circuit passes malfunction information from memory to the data link connector (DLC). This information can then be read with the scantool connected to the DLC (16P).

DTC Description
When an open or increased resistance in driver side airbag squib occurs. When the SRS warning light remains lit and a DTC code occurs, this means an open circuit, or increased resistance between the control module and airbag harness.

Detecting Condition and Specifications





Wiring Schematic