Buggies Gone Wild Golf Cart Forum - View Single Post - TXT 48V still runs with Solenoid disconnected???

JohnnieB · 09-27-2021, 05:09 PM

It sounds like the solenoid clicks when cart is misbehaving. That means the problem is in the high amp circuit. (Motor, solenoid contacts, thick cables, and controller, plus the ITS throttle.)

Connect voltmeter between the controller's B- terminal (Black test lead) and M- terminal (Red test lead).

Push pedal just far enough to make solenoid click and you should read full battery pack voltage (50.8V was mentioned). IF you get it, then slowly push pedal to floor and the voltage ought to decrease to 0V.

If it doesn't either controller or throttle is bad.

I'm not sure which pin the throttle signal is on, but it is either pin-1 (white wire) or pin-2 (black wire). When pedal is pushed just far enough to make solenoid click, you should get 1.0V +/-0.3V and when pedal is on floor it ought to be 2.7V +/-0.5V.

If the throttle checks out, the controller is bad. Replace it with an Alltrax XCT48400-TXT48 or larger.

09-27-2021, 05:09 PM	#6
JohnnieB Techno-Nerd Join Date: Jun 2011 Location: West Virginia Posts: 19,654	Re: TXT 48V still runs with Solenoid disconnected??? It sounds like the solenoid clicks when cart is misbehaving. That means the problem is in the high amp circuit. (Motor, solenoid contacts, thick cables, and controller, plus the ITS throttle.) Connect voltmeter between the controller's B- terminal (Black test lead) and M- terminal (Red test lead). Push pedal just far enough to make solenoid click and you should read full battery pack voltage (50.8V was mentioned). IF you get it, then slowly push pedal to floor and the voltage ought to decrease to 0V. If it doesn't either controller or throttle is bad. I'm not sure which pin the throttle signal is on, but it is either pin-1 (white wire) or pin-2 (black wire). When pedal is pushed just far enough to make solenoid click, you should get 1.0V +/-0.3V and when pedal is on floor it ought to be 2.7V +/-0.5V. If the throttle checks out, the controller is bad. Replace it with an Alltrax XCT48400-TXT48 or larger.