DTC 01

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 test the driver airbag module firing circuit. The SDM allows a very small amount of current to flow through the driver airbag module firing circuit, and the SDM monitors the circuit resistance during this test.

DTC 01 Will Set When
The combined resistance of the driver airbag module, the harness wiring, and the connector contacts is above a specified value, as with an open circuit.

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

CAUTION: Do not attempt to repair the Supplemental Inflatable Restraints (SIR) wiring harness. A repair can create a high-resistance connection which can keep the airbags from deploying when needed, resulting in injury.

Steps 1 - 8:

DTC 01 - Driver Firing Circuit, Resistance Too High