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.
Generators & Regulators: Description
Generator is manufactured by Mitsubishi. Generator is a conventional rotating field, 3-phase, self-rectifying type. Four positive and 4 negative diodes are used to rectify current. System is equipped with built-in voltage regulator which controls output voltage and warning light operation.
The on-off operation of transistor Tr1, connects and disconnects the field current flow, providing a constant level of output voltage. See WIRING DIAGRAMS .
When any of the following problems occur, the charge light will illuminate.
- No voltage generation: Brush wear exceeds specified limits, field coil circuit is broken, etc.
- Excessive output: Output voltage is greater than about 16 volts.
- Terminal "B" disconnection: Harness is disconnected from generator terminal "B".
- Terminal "S" disconnection: Harness is disconnected from generator terminal "S". In this case, voltage is slightly greater than specified regulated voltage; however, voltage regulation is still controlled and battery is prevented from being overcharged.
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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.
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