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Originally Posted by MPaulHolmes
Rightmost blue & white twisted pair (J6):
J6 blue wire is main contactor ground wire. Don't connect the contactor ground wire to anything other than J6 blue wire.
J6 white wire is main contactor coil +24v. Yes, 24v. If you currently use a 12v coil, I'd just not bother with J5 and J6.
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I will connect the j6 wires to a 24volt relay to isolate them from the main contactor which is 12volt.
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J5 (next twisted pair over to the left from J6. Blue and white again):
J5 is for turning on the precharge relay, which is NOT a part of the controller. J5 blue connects to the precharge relay ground.
J5 white connects to the precharge relay +24v.
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I normally connect the precharge resistor directly from the battery pack to the controller so that the capacitor bank is always at pack voltage.
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J3 is valet Mode. The pin on the left needs to be connected to ground (possibly through an on/off toggle switch).
The pin on the right need to be connected to the car's auxiliary +12v supply. You could put the on/off switch on either line.
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Thank-you