When the ignition is turned ON, the inflatable restraint sensing and diagnostic module (SDM) performs tests to diagnose critical malfunctions within the Passenger Presence System (PPS). When the SDM has completed the power-up mode, the SDM will establish communication with the PPS. The SDM will increase a fault counter with each ignition cycle that a fault exists with the PPS. The SDM will lock out the PPS after a predetermined ignition cycle count maximum has been reached.

Ignition 1 voltage is within the normal operating voltage range.

Important: DTC B0092 or DTC B0098 will set if the PPS has a malfunction, and has set any one of the following DTCs  023, 024, 063, 064, or 065. When DTC B0092 or DTC B0098 is present, it is important to check the PPS for any current DTC. Refer to Passenger Presence System Flash Code Procedures . If the PPS has any current DTC, address those DTC before performing this diagnostic procedure.

Any repair performed on the original PPS will not clear DTC B1530.

Schematic Reference

SIR Schematics

Connector End View Reference

SIR Connector End Views

Electrical Information Reference

Important: If the SDM has DTC B0092 or DTC B0098 stored as current, you must address those DTCs before continuing with this diagnostic procedure.

1. With a scan tool, check for DTC B0092 or DTC B0098 is a current DTC.

⇒	Diagnose DTC B0092 or DTC B0098 if set as a current DTC.

2. If the PPS has been replaced then DTC B1530 will automatically be cleared. If the PPS was repaired and DTC B1530 is set as current, the SDM will have to be replaced.

⇒	Replace the SDM.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.