B1381

DTC B1381

Circuit Description

When the ignition switch is turned to ON, the sensing and diagnostic module (SDM) will perform a turn-on test to diagnose critical malfunctions within the SDM itself.

These test ignition and deployment loop voltages are measured to ensure that they are within their normal voltage ranges. The SDM monitors the voltages at the driver low and the passenger low to detect shorts to ground or voltage in the deploy loops.

The SDM inspects the wiring connection to the driver side air bag module by letting the perpetual current flow through the internal circuit and verify the resistance.

Conditions for Setting the DTC

* The side air bag wiring of the driver high is shorted to battery wiring.

* The side air bag wiring of the driver low is shorted to battery wiring.