The inflatable restraint passenger presence system (PPS) has several flexible conductive metal strips placed underneath the seat cushion trim. These sensor strips transmit and receive a low-level electric field. If the seat is saturated with liquid, the PPS will detect a low resistance value between these sensor strips and set DTC 034. The PPS module illuminates the PASSENGER AIR BAG OFF indicator and notifies the sensing and diagnostic module (SDM) that a fault is present when the DTC sets. The SDM will set DTC B0081 indicating a PPS fault and request the instrument panel cluster (IPC) to illuminate the AIR BAG indicator. The SDM will also disable the deployment of the I/P inflator module. In some conditions DTC 056 will set along with DTC 034. DTC 034 should be diagnosed first.

Ignition voltage is between 9-16 volts.

This fault indicates that the seat or seat trim/foam is saturated with liquid. If this DTC sets, verify the wet seat condition, let dry and verify if the fault returns. If DTC 056 is set along with DTC 034, diagnose the wet seat fault first.

Schematic Reference

SIR Schematics

Connector End View Reference

Component Connector End Views

Description and Operation

SIR System Description and Operation

Electrical Information Reference

Scan Tool Reference

Control Module References for scan tool information.

Important: If the DTC resets after rezeroing, it may be necessary to perform this rezeroing procedure several times.

1. Ignition OFF, remove the PPS and passenger seat bottom cushion assembly and allow to air dry approximately 48 hours.
2. Reinstall the PPS and perform the PPS Rezeroing procedure. Refer to Passenger Presence System Rezeroing.
3. Ignition ON, verify DTC 034 is not set as current. Refer to Passenger Presence System Flash Code Procedures.

⇒	If DTC 034 is set as current, replace the PPS.

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.