Denso Troubleshooting

If you purchased a Denso Style Alternator from PA Performance, with an internal voltage regulator, here are a few common troubleshooting steps you can perform if you feel it is not working. In the event your alternator is not working out of the box, these steps are important as every unit is hand built and tested before boxing.

This is not applicable to the OEM Alternator as they were controlled by the ECU, PCM or External Regulator.