Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSBUICK2013REGAL TURBO PREMIUM, STANDARD TRANSREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 149 (SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B0081 (PASSENGER PRESENCE MODULE)CIRCUIT/SYSTEM VERIFICATION
2013 Buick Regal Turbo Premium, Standard Trans
Circuit/System Verification
2013 Buick Regal Turbo Premium, Standard TransSECTION Circuit/System Verification
WARNING: This page is about a different car, the 2012 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- This system is serviced as a kit (seat foam, module and sensing mat). Perform a passenger presence system preload procedure whenever a component is replaced. Refer to Passenger Presence System Programming and Setup .
- Both inflatable restraint sensing and diagnostic module and passenger presence module set DTC B0081 but with different symptoms bytes. Therefore it is important to identify which module has set the DTC B0081. Use the symptom bytes as a way of identify the correct module to diagnose.
- The inflatable restraint sensing and diagnostic module sets a B0081 3A when an incorrect passenger presence module is installed.
- Verify that DTC B0081 3A is not set in the inflatable restraint sensing and diagnostic module.
- If DTC B0081 3A is set in the inflatable restraint sensing and diagnostic module
Replace the K85 passenger presence module.
- If DTC B0081 3A is not set in the inflatable restraint sensing and diagnostic module
- If DTC B0081 3A is set in the inflatable restraint sensing and diagnostic module
- Verify that DTC B0081 is not set in the passenger presence module.
- If DTC is set in the passenger presence module
- If the DTC is not set in the passenger presence module
- All OK.
NOTE:
The inflatable restraint sensing and diagnostic module sets a redundant B0081 00 DTC when the passenger presence module sets a DTC B0081 11 or B0081 4B.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.