General InformationGeneral Troubleshooting Information Before Troubleshooting 1. Check applicable fuses in the appropriate fuse/relay box. 2. Check the battery for damage, state of charge, and clean and tight connections...
Circuit Diagram • COM signal - When controlling the voltage generated, the ECM sends the target voltage data to the alternator via a PWM signal.(High voltage: 4V or higher, low voltage: 2V or lower) • FR signal - The transistor activation signal inside the alternator monitors the voltage generated by the alternator to control the excitation current before it sends the FR signal to the ECM...
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