EZGO series: solenoid activates with key switch

[a_garrett82]

EZGO series car. I got car with bad batteries so I installed some good used batteries I had, the car would go forward until the pedal got about halfway down, then it would quit. In reverse it went extremely fast no matter where the pedal was. So I thought to change out the its, but when I started to move it inside this morning I turned the key on and pressed the pedal and it took off and would not stop until I turned off the key. Now the solenoid activates with the key only. I checked the micro switch in the pedal group and it is operating properly, even with the red and green wires unhooked from micro switch the key switch activates the solenoid and the car tries to take off. I also changed out the forward micro switch on the F&R and that didn't change anything either. I disconnected the b+ side of the controller to eliminate the controller from the possible problem and that didn't change anything either. Also swapped solenoid and nothing.

[JohnnieB]

Unless your cart is wired differently, the solenoid activating when the keyswitch is turned on means the pedal microswitch is bad or maladjusted.

Sounds like you may have more than one problem, but getting the solenoid to activate only when the pedal is pushed is the first step.

[a_garrett82]

Even when I disconnect he pedal switch the key still activates the solenoid. It seems the blue wire the connects the key switch and switch on the F&R is what activates my solenoid. When it is disconnected the solenoid does not activate with the key switch, but when it is connected the key activates the solenoid.

[scottyb]

In the solenoid activation diagram posted above, follow the red line from start to finish. Notice the blue wire you mentioned brings power from the FNR microswitch to the key switch. Also notice power goes from there through the peddle box microswitch before it activates a solenoid. Somehow in the circuit your powers constantly on pass the key… This really only leaves the peddle box microswitch to question.

[a_garrett82]

Found the problem, someone had cut the harness that goes from under the seat to the pedal box. Several wires were broken and touching one another. I guess they were touching just enough to get continuity. Anyway that problem is solved, but I still get dropout at the bottom of the pedal. I have adjusted hue plunger and got it close, but it still dropsout.

[JohnnieB]

With Key ON, Direction selector in F and pedal press just far enough for solenoid to click.
What is voltage between Controller B- and Controller Pin-2?
What is voltage between Controller B- and Controller Pin-1?

With Key ON, Direction selector in F and pedal press to floor.
What is voltage between Controller B- and Controller Pin-1?