Otm electrical problem

[Dauw]

I have a O.T.M golf cart with a curtis controller. The issue currently is that I cant get the cart to run. I don't know where to start fault finding as I dont have any manuals or wiring diagrams on this unit.If I switch the tow switch on the controller has a orange led flashing. I am also not too sure of the wiring as well as the one connector on the controller where there is a 4 pin connector that has nothing connected to it. All help will be appreciated.Does somebody have a simple wiring diagram for me to check the wiring first.

[Speedchaser]

Originally Posted by Dauw

I have a O.T.M golf cart with a curtis controller. The issue currently is that I cant get the cart to run. I don't know where to start fault finding as I dont have any manuals or wiring diagrams on this unit.If I switch the tow switch on the controller has a orange led flashing. I am also not too sure of the wiring as well as the one connector on the controller where there is a 4 pin connector that has nothing connected to it. All help will be appreciated.Does somebody have a simple wiring diagram for me to check the wiring first.

I believe the 4 pin is for diagnostics and programming.

Also, the led is a diagnostic tool, so you need to count the sequence and let us know what controller model it is. So it might blink 4 times, then one time and that would tell you what the problem is but you will need a manual from Curtis so you can sort that out

[Dauw]

Thank you Speedchaser it is a Curtis 1266 SepEx controller. Is there any parts that can cause the flickering of the LED. Is there a logical way of testing the carts electrics and all the parts?

[Stevegrmich]

. . . count the LED flashes, it will flash a two digit code . . . then look at page 47 here:

Attachment 71922


. . . be aware that multiple fault codes could be flashed . . .

[Dauw]

Thanks Steve just another question if I push the pedal I cant hear the solenoid kick in could this be due to a faulty controller?

[Speedchaser]

Originally Posted by Dauw

Thanks Steve just another question if I push the pedal I cant hear the solenoid kick in could this be due to a faulty controller?

I think if you can get the flash code off the controller that that could lead you to your problem. Could be your solenoid is stuck, maybe hit it with a screwdriver to see if it breaks loose, who knows that might be why the controller is throwing codes.

I am sure someone else will have a better idea of your situation, try to post the error codes

[Dauw]

Thanks for the help so far guys I have checked the controller and it comes up with 2 flashes pause flash pause and then repeats the cycle again.

[Dauw]

Sorry just another question when I flip the tow switch to on it activates the solenoid. Is this normal?

[Speedchaser]

Originally Posted by Dauw

Thanks for the help so far guys I have checked the controller and it comes up with 2 flashes pause flash pause and then repeats the cycle again.

Based on the manual Steve posted that would be low battery voltage. Have you checked your pack voltage? If it checks out you might need to hydro test the batteries.

The tow switch problem is odd

[Dauw]

The batteries is fairly new and works in my 3 wheeler cart so I dont think there is any issues with my batteries. It measures 36V I have also replaced the solenoid but the problem is still the same. One thing I noticed was that I have a blue and white wire coming from the forward/backward switch hanging at the back of the cart not connected to anything. Where must this wire go? It's got a lug on like it should slide over a terminal or something?