Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
DTC B0081 0F Passenger Presence System Erratic
DTC B0081 3A Passenger Presence System Incorrect Component Installed
DTC B0081 4B Passenger Presence System Calibration Not Learned
DTC B0081 5A Passenger Presence System Plausibility Failure
DTC B0081 39 Passenger Presence System Internal Electronic Failure
DTC B0081 71 Passenger Presence System Invalid Serial Data Received
The cost to diagnose the B0081 HUMMER code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
When the ignition is turned ON, the Passenger Presence System (PPS) and 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 PPS. The PPS will respond by commanding both of the PASSENGER AIR BAG ON/OFF indicators ON for 5 seconds. The SDM will then 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. If the data stored in memory does not match the information transmitted by the PPS or the SDM has detects that the PPS has set a current Diagnostic Trouble Code (DTC), the SDM will then disable the Instrument Panel (I/P) module deployment loop, set DTC B0081, and command the AIR BAG indicator ON.
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