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.
Circuit/System Testing: Notes
2006 Buick Terraza CXL, 3.5 L, AWDSECTION Notes
WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT:
- A DTC B0081 set in history may not clear until the PPS module enters the sleep mode.
- When removing connectors inspect for damage, corrosion or poor connection. Damage or corrosion in the following requires repair or replacement of the affected component/connector.
- The PPS module
- The SDM module
- The PPS module harness connector
- The SDM wiring harness connector
- Ignition ON, with a scan tool retrieve DTCs from the PPS.
- Ensure DTC B0081 5A is not set as current.
- If DTC B0081 5A is current, replace the PPS.
- Ensure DTC B0081 4B is not set as current.
- If DTC B0081 4B is current, refer to Passenger Presence System Rezeroing Procedure .
- With a scan tool, clear the DTCs from the PPS. All PPS DTCs should clear.
- If any other PPS DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- With a scan tool, retrieve DTCs from the SDM.
- Ensure DTC B0081 3A is not set as current.
- If DTC B0081 3A is current, replace the PPS with the correct part number.
- Ensure DTC B0081 39 is not set as current.
- If DTC B0081 39 is current, replace the PPS.
- Ensure DTC B1000, B1001, or U0170 is not set as current.
- If DTC B1000, B1001, or U0170 is current, refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Ensure DTC B0081 71 or B0081 0F is not set.
- If DTC B0081 71 or B0081 0F is set, Clear the SDM DTCs. No other repairs are necessary.
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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.