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.
Power Module
Power module contains circuitry for providing power to ignition coil, fuel injectors and alternator field. Automatic Shutdown (ASD) Relay is energized by power module to activate fuel pump, ignition coil and parts of power module itself.
Power module does not receive direct signal from distributor. Logic module receives signal from distributor and tells power module to energize ASD relay. If no distributor signal is received by logic module, ASD relay will not be energized and power to fuel pump and ignition coil is cut off. Power module contains voltage converter which reduces battery voltage to constant 8-volt output to power logic module and distributor.
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.