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.
Conditions for Setting the DTC
2006 Buick Terraza CXL, 3.5 L, AWDSECTION Conditions for Setting the DTC
- A DTC B1428 sets when the BCM detects a short to ground in the IGN 1 relay control feed circuit when it is trying to energize the IGN 1 relay.
- A DTC B1428 sets when the BCM detects an open in the IGN 1 relay control feed circuit when it is trying to energize the IGN 1 relay.
- The conditions above must be present for more than 0.3 second.
RENDER: 1.0x
NO RELATED
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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.