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For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2006 🢒 TrailBlazer - 2WD 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 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 rearview mirror 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 instrument panel (I/P) module deployment loop, set DTC B0092, and command the AIR BAG indicator ON. For more detailed information concerning class 2 serial data lines, refer to Data Link Communications Description and Operation .

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.

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

Important: DTC B0092 will also set, if the PPS has a current malfunction, and has set any one of the following DTCs: 023, 024, 064, or 065. The SDM will set DTC B0092 as current and command the AIR BAG indictor ON. This is done to notify the driver of any PPS malfunctions. When DTC B0092 is present, it is important to check the PPS for any current DTCs. Refer to Passenger Presence System Flash Code Procedures . If the PPS has any current DTCs address these before performing this DTC chart.

DTC B0092 is an indication that the SDM has received an incorrect PPS verification ID or has lost communication with the PPS. The SDM will continue to request the verification ID from the PPS for 5 seconds. If the SDM does not receive the correct 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

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

  1. This step checks the PPS for any current or history DTCs.

    2.

  2. This step inspects the PPS module connector.

    3.

  3. This step inspects the main seat harness connector.

    4.

  4. This step tests the PPS ground circuit for an open or high resistance.

    5.

  5. This step tests the PPS ignition 1 voltage circuit for a short to ground, an open, or high resistance.

    6.

  6. This step tests the PPS ground circuit for a short to voltage.

Step

Action

Yes

No

Schematic Reference: SIR Schematics

Connector End View Reference: SIR Connector End Views

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

2

  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.

    3. Important: If the passenger presence system (PPS) has any current or history DTCs stored, you must address the PPS DTCs before continuing with this diagnostic table.

  3. With a scan tool, request the PPS to flash DTCs. Refer to Passenger Presence System Flash Code Procedures .

Does the PPS flash any current or history DTCs?

Go to Diagnostic Trouble Code (DTC) List - Vehicle

Go to Step 3

3

  1. Turn OFF the ignition.
  2. Disconnect the PPS module connector.
  3. Inspect the PPS module connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 9

Go to Step 4

4

  1. Disconnect the main seat harness connector located under the RF seat. Refer to Power Seat Connector End Views in Seats.
  2. Inspect both halves of the connector for corrosion or damage. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 9

Go to Step 5

5

Test the PPS ground circuit for an open or high resistance. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 9

Go to Step 6

6

Test the PPS ignition 1 voltage circuit for the following:

    • A short to ground
    • A high resistance
    • An open

Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 9

Go to Step 7

7

  1. Reconnect the main seat harness connector.
  2. Turn ON the ignition, with the engine OFF.
  3. Test the PPS ground circuit for a short to voltage. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 9

Go to Step 8

8

Replace the PPS. Refer to Control Module References for replacement, setup, and programming.

Did you complete the replacement?

Go to Step 9

--

9
  1. Reconnect all SIR and PPS system components.
  2. Verify that all components, connectors, and connector position assurances (CPAs) are properly mounted.
  3. Use the scan tool in order to clear the SIR and PPS DTCs.
  4. Rezero the PPS. Refer to Passenger Presence System Programming and Setup in Programming and Setup.
  5. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.

Does the DTC reset?

Go to Step 2

System OK