EzGo TXT PDS issues

[MartinEZGo]

Hey guys, I'm stumped. Put a new PQ motor in an 05 TXT and now it's dead. Owner did the initial install and now it's in my shop. Trying to see why this thing's dead. Pack reads 37.9 volts, no click at the solenoid, ITP clicks and gives voltage fluctuation. Pin 4 and 5 both read pack voltage. Im not sure what's keeping this thing from running.

[rib33024]

Check for pack volts on the red/white coming out of the back of the charge port. small wire. Was there any sparks when installing the motor?. Did the cart get put in Tow before the motor was changed? Check to see if you have pack volts + pos and - Ned on the two small post on the solenoid. In forward or reverse with the pedal pushed. LIFT the rear wheels off the ground before testing

[MartinEZGo]

The red wire from the charge port reads pack voltage. Im not sure about the spark or tow switch though, as they did the swap in their garage. Both small wires, blue and yellow, both read pack volts as well

[rib33024]

The PDS controller supplies both B+ (yellow wire) and B- (blue wire) to the solenoid coil.

You have to have Run/Tow in Run, Keyswitch On and F/R in either F or R to get B+ to solenoid coil. Then when you push the pedal, the pedal switch supplies battery pack voltage to J4 Pin-1 telling the controller to connect B- to the blue wire, energizing the solenoid.

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verify you have battery pack voltage (38.2V when fully charged) on all the pins highlighted in red on the attached schematic. Also attached is a picture of a PDS controller with Pin-1 highlighted on all of the jacks.









http://www.buggiesgonewild.com/elect...ml#post1649214

[MartinEZGo]

I'll confirm power tonight. Thanks Rib.

J4 is working correctly, from what I can tell. I get the varying voltage depending on pedal location.

[JohnnieB]

Originally Posted by MartinEZGo

The red wire from the charge port reads pack voltage. Im not sure about the spark or tow switch though, as they did the swap in their garage. Both small wires, blue and yellow, both read pack volts as well

The highlighted statement above eliminates in the solenoid activation circuitry except the pedal switch, the controller and the connecting wires and plugs.

B+ on the yellow wire is feeding through the solenoid coil to the blue wire, and all that is needed to activate the solenoid is for the controller to put B- on J1 Pin-6.

[MartinEZGo]

I'm thinking the same. I'll check for voltage at the marked spots above as well. If the speed sensor underneath is sending a reading back at its controller plug, does that eliminate it as the issue?

[JohnnieB]

Originally Posted by MartinEZGo

I'm thinking the same. I'll check for voltage at the marked spots above as well. If the speed sensor underneath is sending a reading back at its controller plug, does that eliminate it as the issue?

Speed sensor is not need to get cart to run, it just keeps it from running at full speed.

[MartinEZGo]

Then it looks and sounds like the controller is my issue

[JohnnieB]

Could be a bad pedal switch.

Verify you get B+ on J4 Pin-1 when pedal is pushed.