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Old 08-11-2019, 05:58 PM   #1
Bballtwenty2
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Yamaha
 
Join Date: Jul 2015
Posts: 150
Default Bad throttle sensor maybe???

Hello all! Trying to fix my grandmothers cart.
It will not go forward or backwards. I flipped the tow switch and I can hear the solenoid click.
The reverse buzzer works.
I知 thinking it could be the throttle sensor.
The cart is a 2011 48volt Yamaha drive.


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Old 08-11-2019, 06:16 PM   #2
trentofdestiny
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Yamaha
 
Join Date: Oct 2017
Location: Harrisburg, PA
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Default Re: Bad throttle sensor maybe???

Check the pedal switch and ignition switch before you check the throttle pot


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Old 08-11-2019, 06:35 PM   #3
Bballtwenty2
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Default Re: Bad throttle sensor maybe???

I figured the pedal switch and throttle sensor was the same part that is located behind the petal


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Old 08-11-2019, 06:52 PM   #4
trentofdestiny
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Default Re: Bad throttle sensor maybe???

Throttle sensor is variable and pedal switch is just on/off


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Old 08-17-2019, 04:27 PM   #5
Bballtwenty2
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Default Re: Bad throttle sensor maybe???

Update:

Finally was able to get over to my grandmothers to check the cart. I installed a pedal switch or throttle sensor behind the pedal and also cleaned and tightened all battery connections.
Some of the old symptoms before it completely died was sometimes it would not move until I would flip the run tow switch on and off. Right before it died it kind of was like jumping moving forward. Now it痴 dead

Still have reverse buzzer.
Still have solenoid clicking.
Still cart will not move when pressing pedal.


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Old 08-17-2019, 08:38 PM   #6
Rob_C
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Default Re: Bad throttle sensor maybe???

Throttle position sensor is on the right side of the throttle pedal, it reads throttle position (angle) off the pivot shaft. It's held in place by two 7mm head screws. The bottom one is a bit of a bugger to get to, you can grind a 1/4" drive 7mm socket shorter to get it out.
Part #45 in this image. Part number should be JW2-H5885-00-00
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Old 08-18-2019, 01:43 AM   #7
cgtech
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Default Re: Bad throttle sensor maybe???

Does the cart resists being pushed around, while beeping at you. If so, we can rule out the controller as the problem.
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Old 08-18-2019, 08:13 AM   #8
Bballtwenty2
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Default Re: Bad throttle sensor maybe???

I値l have to go check that. I知 pretty positive it does resist, but I値l need to verify.
If it just freely rolls without resistance in run it痴 likely the controller?


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Old 08-18-2019, 01:26 PM   #9
cgtech
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Default Re: Bad throttle sensor maybe???

Quote:
Originally Posted by Bballtwenty2 View Post
I値l have to go check that. I知 pretty positive it does resist, but I値l need to verify.
If it just freely rolls without resistance in run it痴 likely the controller?


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I'm not saying that, but ruling out a big item would sure be nice.
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Old 08-18-2019, 08:21 PM   #10
Bballtwenty2
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Default Re: Bad throttle sensor maybe???

Quote:
Originally Posted by cgtech View Post
I'm not saying that, but ruling out a big item would sure be nice.


Just got back from checking it.
It has zero resistance in run mode. The beeper still beeps, but you can push it with no stoppage.


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