EZGO PDS limp mode

[JohnnieB]

Alltrax controllers should NOT be covered.

They are filled with potting compound and are waterproof, or at least water resistant and the airflow around them helps keep them cool.

[kgsc]

JB I mostly agree. I didn’t mean to enclose it but to just put a partial cover on the top half. Won’t seal on the sides because it is too deep but protects the top of the controller and solenoid from things falling on them.

[JohnnieB]

Whatever works best for the specific application.

[Croqezgo]

I would also like to point out that I had a similar situation. It was a wire in the connector (J5 pin) that had corroded away. It would touch sometimes and sometimes it did not.

http://www.buggiesgonewild.com/showthread.php?t=157811

[Laytonl]

I am another “golf cart does slow” Person.

My 2006 ezgo pds went into limp home mode last week.

I opened it up and the small red wire going to the supply side of the solenoid was arcing to the blue wire.

Here is what I have found so far.

- The solenoid is good.
- When I turn the key on and select forward the relay engages, before pressing the pedal
- the yellow wire has supply voltage 38v.
- the blue wire has 1.6 volts.

Perhaps unrelated, but I ran thru the maintenance flow chart and the only odd thing I saw was the voltage between F1 And F2 is 12.75 volts.

Any ideas what is wrong? Did the red to blue short damage the controller?

Thanks for any advice,

Lee

[JohnnieB]

Originally Posted by Laytonl

I am another “golf cart does slow” Person.

My 2006 ezgo pds went into limp home mode last week.

I opened it up and the small red wire going to the supply side of the solenoid was arcing to the blue wire.

Here is what I have found so far.

- The solenoid is good.
- When I turn the key on and select forward the relay engages, before pressing the pedal
- the yellow wire has supply voltage 38v.
- the blue wire has 1.6 volts.

Perhaps unrelated, but I ran thru the maintenance flow chart and the only odd thing I saw was the voltage between F1 And F2 is 12.75 volts.

Any ideas what is wrong? Did the red to blue short damage the controller?

Thanks for any advice,

Lee

The blue wire connects to the main coil driver inside the controller, which applied B- to the solenoid coil when the pedal is pushed. The red wire is connected to B+ and if the solenoid was activated when the blue and red wires touched, B+ was shorted directly to B- through the main coil drive, and now it is shorted. (Solenoid clicks when key on and direction selected)

In other words, the controller is shot. Replace it with an Alltrax XCT48400-PDS (or larger).

[Laytonl]

johnnieb, this is what I expected. Thank you for responding. Lee