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 MANUALSSATURN2009ASTRA XR, 4D HATCHBACK, AUTOMATICREPAIR AND DIAGNOSISBODY & FRAMEIGNITION SWITCH/STEERING LOCKIMMOBILIZERDIAGNOSTIC INFORMATION AND PROCEDURESDTC B3055CIRCUIT/SYSTEM VERIFICATION
2009 Saturn Astra XR, 4D Hatchback, Automatic
Circuit/System Verification
2009 Saturn Astra XR, 4D Hatchback, AutomaticSECTION Circuit/System Verification
- Inspect that all available remote keys are correct remote keys for the vehicle.
- If any remote keys are incorrect for the vehicle, replace the remote key.
- Attempt to start the vehicle with each of the available remote keys. DTC B3055 should not set.
- If only one remote key causes DTC B3055 to set, replace the appropriate remote key.
- If all remote keys cause DTC B3055 to set, replace the CIM.
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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.