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 Description
1999 Buick Regal LSSECTION Circuit Description
This engine uses an individual ignition coil/module and circuit for each cylinder. Sequencing and timing are controlled by PCM. DTC will set if IC circuit is out of range. DTC will set when the following conditions are present:
- System voltage is 9-17 volts.
- PCM detects IC circuit is open or shorted to ground or voltage.
- Conditions met for less than one 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.