mcor diagnosis

wallen · 11-23-2007, 09:22 AM

I need help in checking the mcor unit on my 2006 DS cart. The mcor has green & blue leads to one plug, and purple, white, & yellow leads to the other plug. This cart suddenly died. The batteries are fine, & the solenoid works OK, so I'm thinking that either the mcor unit is bad, or the speed controller died.

phasetim · 11-23-2007, 03:49 PM

series car or IQ?

wallen · 11-23-2007, 06:50 PM

It's an IQ cart. The schematic posted in this forum appears to indicate that the two wire plug runs to a switch in the mcor unit, & the three wire plug runs to a pot to determine throttle position. I get no change in ohmmeter reading across the two wire connection regardless of throttle position.

phasetim · 11-23-2007, 08:02 PM

Does the solenoid click?

wallen · 11-23-2007, 10:15 PM

Solenoid is OK - Clicks when pedal is depressed, & reads correct voltage to the speed controller.

phasetim · 11-23-2007, 11:47 PM

the top wires to the MCOR are activating the solenoid.. So "most likely" your MCOR is good.

speed controller is highly likely, motor is a possibility.

Have you verified that the wires going into the MCOR are firmly in place, as well as the wiring harness into the controller?

11-23-2007, 09:22 AM	#1
wallen Not Yet Wild Join Date: Nov 2007 Posts: 3	mcor diagnosis I need help in checking the mcor unit on my 2006 DS cart. The mcor has green & blue leads to one plug, and purple, white, & yellow leads to the other plug. This cart suddenly died. The batteries are fine, & the solenoid works OK, so I'm thinking that either the mcor unit is bad, or the speed controller died.
wallen Not Yet Wild Join Date: Nov 2007 Posts: 3

11-23-2007, 03:49 PM	#2
phasetim Just me. . Join Date: Sep 2007 Location: Pensacola, FL Posts: 1,092	Re: mcor diagnosis series car or IQ?

11-23-2007, 06:50 PM	#3
wallen Not Yet Wild Join Date: Nov 2007 Posts: 3	Re: mcor diagnosis It's an IQ cart. The schematic posted in this forum appears to indicate that the two wire plug runs to a switch in the mcor unit, & the three wire plug runs to a pot to determine throttle position. I get no change in ohmmeter reading across the two wire connection regardless of throttle position.
wallen Not Yet Wild Join Date: Nov 2007 Posts: 3

11-23-2007, 08:02 PM	#4
phasetim Just me. . Join Date: Sep 2007 Location: Pensacola, FL Posts: 1,092	Re: mcor diagnosis Does the solenoid click?

11-23-2007, 10:15 PM	#5
wallen Not Yet Wild Join Date: Nov 2007 Posts: 3	Re: mcor diagnosis Solenoid is OK - Clicks when pedal is depressed, & reads correct voltage to the speed controller.
wallen Not Yet Wild Join Date: Nov 2007 Posts: 3

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11-23-2007, 11:47 PM	#6
phasetim Just me. . Join Date: Sep 2007 Location: Pensacola, FL Posts: 1,092	Re: mcor diagnosis the top wires to the MCOR are activating the solenoid.. So "most likely" your MCOR is good. speed controller is highly likely, motor is a possibility. Have you verified that the wires going into the MCOR are firmly in place, as well as the wiring harness into the controller?

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