Body DTC B0092
OBD2 Error Codes

Body DTC B0092

Body DTC B0092

OBD-II DTC Datasheet

Left Restraint Sensor 2 (Additional Fault) [or PPS passenger detection error on GM vehicles]

What does this mean?

This Diagnostic Trouble Code B0092 seems to be the most common on GM vehicles (Chevy, Buick, GMC, etc.) and on GM vehicles the code can be defined as PPS passenger detection error... However, this is not exactly normal code. Left lateral restraint sensor 2 refers to the entire restraint system in the vehicle. Here's a quote from a doc on the system:

“When the ignition is on, the airbag sensing and diagnostic module (SDM) performs tests to diagnose critical malfunctions within itself. When the SDM enters power-up mode, the SDM will establish communication with the Passenger Presence System (PPS). The PPS will respond to the ON / OFF of both PASSENGER AIRBAG indicators located in the rearview mirror for 5 seconds.

SDM will send a request message to PPS to get the PPS check ID. The PPS will send the verification ID to SDM, and the SDM will compare the received ID with the data stored in memory. The SDM will also set DTC B0092 to notify the driver that there is a current fault in the PPS. When the SDM detects that the PPS has set any of the following DTCs, 023, 024, 063, 064, or 065, the SDM will disable the dash module deployment circuit, set DTC B0092, and command the AIR BAG indicator light. "

Possible symptoms

B0092 may cause the driver to see abnormal behavior with indicator lights such as the airbag warning lamp and / or the passenger airbag warning lamp, may or may not light up normally.

Possible solutions

This DTC B0092 is present in some GM vehicles, there is a known TSB. Therefore, if you have an Escalade, Avalanche, Silverado, Suburban, Tahoe, Sierra, Yukon or other vehicle, be sure to check the TSB first. Please note that TSBs are not intended for DIYers. TSBs are intended for use by GM technicians.

However, the first steps to take are to check the wiring and connectors and make sure that the wires are not pinched, broken, etc. If visually everything is in order, check the circuits for continuity and resistance according to the factory specifications. Check the operation of the PPS and replace if necessary. Specifically, this is an excerpt on how to diagnose GM error B0092:

  • Ignition on, PPS should turn on the PPS ON / OFF indicators. Make sure the PPS lights up with the PPS on/off indicators. – If the passenger airbag ON/OFF status indicator does not illuminate, refer to Passenger Presence System Indicator Circuit Malfunction.
  • Ignition on, use a scan tool. Go to PPS menu then get DTCs. Refer to Passenger Presence System Flash Code Procedures. Verify that no PPS DTCs are set. – If any current or historical DTCs are stored in the PPS, you must resolve the PPS DTCs first. Refer to Diagnostic Trouble Code (DTC) List - Vehicle.
  • Ignition OFF, disconnect the PPS module connector.
  • Remove the SDM connector.
  • Test the occupancy sensor serial data circuit for an open, short to ground, or high resistance between the PPS connector and the SDM. Check for an open, short to ground, or high resistance. – If any of the above conditions are found, carry out the appropriate repairs.
  • Test the ignition 1 voltage and PPS ground circuits for a short to ground, voltage, high resistance, or an open. Check for a short to ground, voltage, high resistance, or open circuit. – If any of the above conditions are found, carry out the appropriate repairs.
  • If all circuits test normal, replace the PPS. ”

Further reading

  • Automotive circuit testing

Related DTC discussions

  • 2007 Chevy UplanderHi, I have an Uplander 07 that has an airbag indicator on the dash and it's giving code B0092 - Passenger Presence Sensor Poor Operation. When the ignition is turned on, the airbag status light comes on and goes off for the first 5 seconds or so and then goes off. I have conflict... 

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