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Old 03-18-2019, 06:51 PM   #8
Sergio
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Join Date: Sep 2012
Location: Charlotte, NC
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Default Re: Precedent IQ - Beeping & Regen on downhills?

If that Diode on the gray wire that goes to the Controller Pin #9 is bad, it will do exactly as you described.

The condition is caused when the cart tries to go faster than the accelerator pedal position is requesting, when the Controller tries to activate the Regen brake to control the speed, it triggers a "Main Dropout Error".

That diode prevents that error condition from happening.

If You know where the diode is located in the harness you can test it.
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