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Old 06-14-2014, 01:33 PM   #1
Stacey Toole
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Default 08 PDS wont run

Already put new solenoid and speed control on , How can i check motor voltage
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Old 06-14-2014, 05:07 PM   #2
JohnnieB
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Default Re: 08 PDS wont run

Checking motor voltage is about step 37.

Step 1 is the question: Does the solenoid click?

You have to have battery pack voltage on every wire highlighted in red on the attached schematic to tell the controller to activate the solenoid.
Attached Images
File Type: jpg Wiring Diagram - PDS - Solenoid activation traced.jpg (69.7 KB, 0 views)
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Old 06-14-2014, 05:45 PM   #3
Stacey Toole
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Default Re: 08 PDS wont run

Yes solenoid clicks it takes a fed seconds to release I don't know if that's right
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Old 06-14-2014, 06:25 PM   #4
scottyb
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Default Re: 08 PDS wont run

Is it an Alltrax or Curtis control?
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Old 06-14-2014, 06:40 PM   #5
Stacey Toole
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Default Re: 08 PDS wont run

Curtis, It is a reman so the old one was good unless this is bad I had to give core
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Old 06-15-2014, 07:27 AM   #6
JohnnieB
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Default Re: 08 PDS wont run

Quote:
Originally Posted by Stacey Toole View Post
Yes solenoid clicks it takes a fed seconds to release I don't know if that's right
The PDS controller (Curtis 1206MX) is a "Fly by Wire" system and has complete control of the solenoid and other drive system functions, so the solenoid might not DE-activate the instant you take your foot off the pedal.

More importantly, the solenoid clicks. That narrows the scope of where the problem is to the high current circuit and the throttle circuit.

Have you tried putting it into diagnostic mode? It might give you an error code.
The text at the bottom of the attached label tells you how to get into diagnostic mode and lists the error codes.

-----
Also, measure between the controller's B- and A1 terminals.
When the pedal is pushed just far enough for the solenoid to click, you should read FULL battery pack voltage.

If not, there is a problem with the high current cables/connections, or the solenoid contacts, or the motor.

If so, push the pedal to the floor and the voltage should drop to Zero.
If not, either the throttle circuit (ITS) or controller is bad.
Attached Images
File Type: jpg PDS Label on Controller Cover.JPG (142.9 KB, 0 views)
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Old 06-15-2014, 12:21 PM   #7
Stacey Toole
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Default Re: 08 PDS wont run

Tryed A1to B-push pedal till solenoid clicked .02 when to floor .0 ran diagnostics code 4-1 came up
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Old 06-15-2014, 01:13 PM   #8
Stacey Toole
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Default Re: 08 PDS wont run

Went back n check b- to a1 again had 1.0 when solenoid click n 0 at full I had 5.8to 6.0 for half sec at full then 0
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Old 06-15-2014, 01:18 PM   #9
cgtech
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Default Re: 08 PDS wont run

I would pull and inspect motor. Disconnect battery pack first, and tape loose wires at motor.
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Old 06-15-2014, 01:50 PM   #10
JohnnieB
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Default Re: 08 PDS wont run

Be sure to flip Run/Tow to Tow before disconnecting any wires/cables!!!!!!!!!!!!

There isn't much in the high current circuit of a PDS.

Just the solenoid contacts, the armature and a a few cables.

For the moment, just measure the voltage from B- on the controller to A1 and then B- to A2 on motor when the solenoid clicks. It should read the same (almost) on both.

If they both read about Zero, check the solenoid.
Attached Images
File Type: jpg Wiring Diagram - PDS - High current traced.JPG (65.7 KB, 0 views)
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