B1670

DTC B1670

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.

In case of the second stage air bag inflation by a vehicle collision, the SDM maintains the warning lamp ON and then all the air bag systems including the SDM, air bag module, and wiring should be replaced.

Conditions for Setting the DTC

The history of the second stage air bag inflation or belt pretensioner explosion is in the SDM.