DTC 002

DTC 002

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.

The 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.

CONDITIONS FOR SETTING THE DTC
- The resistance of the driver air bag deployment loop is lower than 1.8 ohms.
- The shorting bar is damaged and then the SDM must be replaced.

TEST

Steps 1-3:

Steps 4-7: