B0092

DTC B0092

CIRCUIT DESCRIPTION
When the ignition is turned ON, the inflatable restraint sensing and diagnostic module (SDM) performs tests to diagnose critical malfunctions within itself. When the SDM has completed the power-up mode, the SDM will establish communication with the passenger presence system (PPS). The PPS will respond by commanding both the PASSENGER AIR BAG ON/OFF indicators located in the center of instrument panel (I/P) ON for 5 seconds. The SDM will transmit a request message to the PPS to receive the PPS verification ID. The PPS will transmit the verification ID to the SDM and the SDM will compare the ID received to data stored in memory. The SDM will also set DTC B0092 to notify the driver that the PPS has a current malfunction present. When the SDM detects that the PPS has set any one of the following DTCs 023, 024, 063, 064, or 065, the SDM will disable the I/P module deployment loop, set DTC B0092, and command the AIR BAG indicator ON.

DTC DESCRIPTOR
This diagnostic procedure supports the following DTC:
DTC B0092 Passenger Presence System Performance

CONDITIONS FOR RUNNING THE DTC
Ignition 1 voltage is within the normal operating voltage range.

ACTION TAKEN WHEN THE DTC SETS
- The SDM disables the I/P module deployment loop.
- The SDM commands the AIR BAG indicator ON via class 2 serial data.
- The PPS will turn ON the PASSENGER AIR BAG OFF indicator.

CONDITIONS FOR CLEARING THE DTC
- The condition responsible for setting the DTC no longer exists.
- You issue a scan tool CLEAR DTCs command.
- A history DTC will clear once 255 malfunction free ignition cycles have occurred.

DIAGNOSTIC AIDS
DTC B0092 is an indication that the SDM has no or loss communication with the PPS or the PPS has internal faults/DTCs. The SDM will communicate to request the verification ID from the PPS for 5 seconds. If the SDM does not receive the verification ID from the PPS within 5 seconds the SDM will set the DTC as current, illuminate the AIR BAG indicator, and disable the I/P module deployment loop.

TEST DESCRIPTION

Step 1 - Step 9:

Step 10:

The numbers below refer to the step numbers on the diagnostic table.
2. This step checks the PPS for any current or history DTCs.
5. Test the occupant sensor serial data circuit for an open or high resistance.
6. Test the PPS ignition 1 voltage circuit for a short to ground, a high resistance, or an open.
7. Test the PPS ground circuit for an open or high resistance.
8. Test the PPS ground circuit for a short to voltage.