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. If this occurs, allow seat to dry and check if fault returns. If the PPS determines there is a wet seat condition the PPS will communicate to the sensing and diagnostic module (SDM) through a non class 2 communications circuit that a PPS fault is present. When the PPS detects this DTC within the PPS it will notify the customer of the enable/disable status by turning on the OFF indicator on the PASSENGER AIR BAG ON/OFF indicators, then the PPS will communicate to the SDM through a non class 2 communications circuit that a PPS fault is present. The SDM will then turn the AIR BAG indicator ON, and set DTC B0092 indicating a problem within the PPS and will suppress the deployment of the instrument panel module (IPM). In some conditions DTC 056 will set along with DTC 034. The wet seat fault should be diagnosed first.

This diagnostic procedure supports the following DTC:

DTC 034 Wet Seat Fault

Ignition 1 voltage is within the normal operating voltage range.

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 see if fault returns. If DTC 056 is set along with DTC 034, diagnose the wet seat fault first.

The numbers below refer to the step numbers on the diagnostic table.

2. This step is checking to see if DTC 034 is current or history.

3. This step allows the PPS and seat cushion assembly to air dry, then reinstall the PPS and cushion assembly to see if the DTC sets again.