B0051

Diagnostic Chart:

CIRCUIT DESCRIPTION

Schematic:

The SDM contains a sensing device that converts vehicle velocity changes to an electrical signal. The electrical signal is generated by the SDM and compared to a value stored in memory. When the generated signals exceed the stored values, the SDM deploys the air bags and stores a DTC in its memory.

DTC PARAMETERS:
DTC B0051 sets when the SDM commands the inflator modules to deploy air bags. The following conditions must be met to set this DTC.
- Ignition voltage is present at the SDM and continuous.
- The SDM detects a frontal crash up to 30 degrees off vehicle centerline.
- Crash was of sufficient force to warrant deployment of air bags.

ACTION TAKEN:
- DTC B0051 will set.
- The air bag telltale will be On.
- DTC is latched in SDM memory.

DIAGNOSTIC AIDS:
- Always start diagnosis of SIR DTCs with an Inspection of vehicle, including its wiring and SIR components for visible damage.
- Always replace SDMs with DTC B0051 set, only after all collision repairs have been completed.

IMPORTANT: DTC B0051 is a latched code and can not be cleared from SDM memory.

- Always perform the "SIR Diagnostic System Check" procedure before using this chart.