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.
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HOMESERVICE MANUALSBUICK2006TERRAZA CXL, 3.5 L, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 246 (SUPPLEMENTAL INFLATABLE RESTRAINT SYSTEM)DIAGNOSTIC INFORMATION AND PROCEDURESDTC B0022CIRCUIT/SYSTEM TESTING
2006 Buick Terraza CXL, 3.5 L, AWD
Circuit/System Testing
2006 Buick Terraza CXL, 3.5 L, AWDSECTION Circuit/System Testing
WARNING: This page is about a different car, the 2007 Chevrolet Monte Carlo and 2007 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
- The seat belt retractor pretensioner - RF
- The SDM module
- The seat belt retractor pretensioner - RF wiring harness connector
- The SDM wiring harness connector
- Ignition OFF, disconnect the seat belt retractor pretensioner - RF connector.
- Connect the J 38715-A to the harness side of the seat belt retractor pretensioner - RF wiring harness connector. See Special Tools . Use the PASSENGER INFLATOR connector located on the load tool.
- Ignition ON, use a scan tool to observe the SIR DTC display. Verify DTC B0022 is set current.
- If DTC B0022 is history replace the seat belt retractor pretensioner - RF.
- Ignition OFF, disconnect and remove the J 38715-A . See Special Tools . Then remove the SDM connector, refer to Control Module References for SDM replacement in Repair Instructions for connector location.
- Test the high and low circuits between the SDM and seat belt retractor pretensioner - RF for a short to voltage, short to ground, an open, or low resistance. Verify that a short to voltage, short to ground, or open/low resistance does not exist.
- If any of the above conditions are found make the appropriate repair.
- If all circuits test normal then replace the SDM.
IMPORTANT:
When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector.
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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.