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Electric Club Car Electric DS, and Precedent golf cars |
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03-22-2019, 11:41 PM | #11 |
MOD of all BS!
Join Date: Sep 2011
Location: Florida
Posts: 17,477
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Re: Precedent IQ - Beeping & Regen on downhills?
Losing our posts, I cannot remember what else we discussed.
Do you here the solenoid open (click) when any of this is occurring? |
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03-23-2019, 02:12 PM | #12 | |
Not Yet Wild
Join Date: Mar 2019
Location: Flowery Branch GA
Posts: 35
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Re: Precedent IQ - Beeping & Regen on downhills?
Quote:
Absolutely I can here the solenoid open. Weird thing is I can tell when the cart is going to do it. Even in reverse it will drop out backing out of my garage barely pressing the go pedal down. I can here it clearly open or drop out on downhills. I would think to replace the solenoid but it’s fine on any flat or uphills.... Maybe the controller has an issue causing it to drop out the solenoid. I would like to see a flow chart that explains how the controller operates in all situations. Mine has the stock Curtis controller. Sent from my iPhone using Tapatalk |
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03-24-2019, 10:04 AM | #13 |
MOD of all BS!
Join Date: Sep 2011
Location: Florida
Posts: 17,477
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Re: Precedent IQ - Beeping & Regen on downhills?
Have you removed and tested the solenoid? As in the field coil? Wondering if it is weak and dropping out....
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03-25-2019, 06:57 AM | #14 | |
Not Yet Wild
Join Date: Mar 2019
Location: Flowery Branch GA
Posts: 35
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Re: Precedent IQ - Beeping & Regen on downhills?
Quote:
I’ve not. I’ve got a local shop picking it up today. They can get any fault codes off and go from there. If I had more time I would change it out. Sent from my iPad using Tapatalk |
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04-03-2019, 12:56 PM | #15 |
Not Yet Wild
Join Date: Mar 2019
Location: Flowery Branch GA
Posts: 35
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Re: Precedent IQ - Beeping & Regen on downhills?
Guys, I got the cart back but the same problem came back within a day.
I sent it to a local shop and they troubleshooted it down to the solenoid, said no faults present in the iQ system... Replaced it with new factory solenoid for my model. Got it back, ran fine, within a day the same symptoms came back. Solenoid drops out on downhill only at fast and slow speeds and even slow in reverse. Re-Cap of what has been tested in this thread:
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04-03-2019, 01:58 PM | #16 |
Gone Wild
Join Date: Sep 2012
Location: Charlotte, NC
Posts: 9,329
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Re: Precedent IQ - Beeping & Regen on downhills?
I would start with replacing the diode, they are cheap and your symptoms are very similar to what would happen if the diode fails under current.
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04-03-2019, 02:42 PM | #17 |
MOD of all BS!
Join Date: Sep 2011
Location: Florida
Posts: 17,477
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Re: Precedent IQ - Beeping & Regen on downhills?
100% agree with Sergio. That is just like the '09s that had the "drop-out" issue and you know it is not the solenoid now since it has just been replaced.
And unless you are lifting your foot all the way off the Go Pedal, I do not believe the MCOR MS can drop the coil once it has gained the permissive to close it. The Speed Sensor will put you in "limp" mode, but does not cause the solenoid to open. |
04-03-2019, 03:18 PM | #18 | |
Not Yet Wild
Join Date: Mar 2019
Location: Flowery Branch GA
Posts: 35
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Re: Precedent IQ - Beeping & Regen on downhills?
Quote:
Thanks guys I’ll get one on the way. Sent from my iPad using Tapatalk |
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04-04-2019, 08:30 AM | #19 |
Not Yet Wild
Join Date: Mar 2019
Location: Flowery Branch GA
Posts: 35
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Re: Precedent IQ - Beeping & Regen on downhills?
Quick update.
I talked with David @ revolutiongolfcars.com. He suggested also testing the obc by bypassing it. I unplugged the connector and jumped the white and blue only on the cart harness. It ran but still had the same issue. Also to confirm the obc is probably working fine it charges with <6 month old new batteries to ~52vdc using the stock power drive charger. I’ve got the diode assembly, a new mcor, obc bypass harness kit(JIC) and precharge resistor ( only $5 why not)on the way. Sent from my iPad using Tapatalk |
04-04-2019, 08:48 AM | #20 |
MOD of all BS!
Join Date: Sep 2011
Location: Florida
Posts: 17,477
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Re: Precedent IQ - Beeping & Regen on downhills?
Good, let us know if it cures the problem.... (It better, right!!)
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