DTC 02

Circuit Description
When the ignition switch is turned ON, the Sensing and Diagnostic Module (SDM) will perform tests to diagnose any malfunctions within itself. After passing these tests, the SDM will check the airbag module firing circuit. The SDM allows a very small amount of current to flow through the airbag module firing circuit, and the SDM monitors the circuit resistance during this check.

DTC 02 Will Set When
The combined resistance of the driver airbag module, the harness wiring, and the connector contacts is below a specified value, as with a short circuit between the wires to the driver airbag module.

CAUTION: Before replacing components, disconnect the negative battery cable. Wait one minute for the SDM capacitor to discharge. The capacitor supplies reserve power to deploy the airbags, even if the battery is disconnected. Unintentional deployment of the airbags can cause Injury.

CAUTION: Never measure the resistance of an inflator module with an ohmmeter. An ohmmeter's battery can deploy the airbag and cause injury.

Steps 1 - 6:

DTC 02 - Driver Firing Circuit, Resistance Too Low