2001 ds no power in reverse

[rockmotors]

loaded ck all batteries ok golf cart goes 8 mph forward when going up incline goes slow , in reverse if i put 4 people wont move

[scottyb]

Is this cart 36 or 48 volts?

[Roxyflash]

It must have the half speed reverse it can be bypassed post picture of the battery area or serial number

[TahoeDawgZ71]

Originally Posted by rockmotors

loaded ck all batteries ok golf cart goes 8 mph forward when going up incline goes slow , in reverse if i put 4 people wont move

What's your vehicle serial number? We can't help you until we know the drive system.

[rockmotors]

Golf cart is a 48 volt here is a picture of cart serial number is
Aa0149-099541 and the battery light flash’s when it sits
Ck voltage at batteries was 48.5 volts speed controller number is 1204-410 silver box
Has obc and old style mcor and forward and reverse is on seat

[rockmotors]

drove cart to after full charge goes 8 mph on flat surfaces if u try to climb
hill in forward goes really slow also , thinking it has bigger problem

[Fairtax4me]

Sounds like batteries are dead if they're only showing 48.5. Should be somewhere between 50 and 51v on a full charge.

Check battery voltage when the cart is moving and batteries are loaded.

[TahoeDawgZ71]

It sounds like you've either got low battery voltage, an out-of-range throttle signal, or a controller that has simply lost output.

Let's try some stuff. Get a digital multimeter and perform the following tests.

-Check the total battery voltage of your battery pack. Check it while the cart is sitting still, and test it again while you're driving it. You may need to purchase some alligator clip leads for your meter so you can leave it clamped to the batteries while you're driving. You'll need to set the meter to 200 Volts DC, and position the leads as follows.. Red lead will go to the main positive battery terminal. This will be the positive terminal of the rear-most battery on the passenger side. The black lead will go to the main negative, which will be the negative terminal of the rear-most battery of the passenger side. Posts your results here. Let us know how low the voltage drops when the car is only doing 8 MPH.

Throttle testing - With the F&R switch in forward, key switch off.... Un-plug the small green wire and small yellow wire from the controller. These are the throttle input wires. Insert the leads of your multimeter into the terminals on the ends of these wires. Do not reconnect them to the controller. Set your meter to 20k Ohms. At zero throttle you should see 5000 ohms. At full throttle you should see 0 ohms. Post results here. zero ohms at full throttle is obviously more important than any reading anywhere else if we're trying to diagnose a speed issue. We're trying to make sure the throttle switch is telling the controller to run full speed.

If we find that the battery voltage is OK, and that the throttle switch is working correctly, we'll need to put a controller on it. The Curtis factory controllers fail like this from time to time. As they age, they lose power output.

[rockmotors]

So I ck those two wire and found that it had 1.53
So I had ordered a morc up grade last week it got here to day
Golf cart goes faster and seems better in reverse but still slow
Maybe you can help me to rewire so it goes faster in reverse
Thanks for all the help going to test batteries tomorrow when my longer test
Leads get here and I will tell what the voltage is when I am driving it

[Mooncarter]

Does that cart have a small resistor coil setup for reverse?