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Precedent LSU

Make:
Club Car
Model:
Precedent
Voltage:
48v
Suspension:
Stock
Tires / Rims:
18 x8.5-8
  1. David submitted a new Showcase Item:

    Monroe

    Read more about this showcase item here...
     
  2. [​IMG]
     
  3. Not sure the year. I can not find the tag. It has a aluminum frame. 48 volts. Club Car Precedent Sorry Il
     
  4. ok first make sure batteries are fully charged
    here is a good guide
    [​IMG]
    if full power then the you will need tO test the MCOR
    if you do not know your way around a muilt - meter then i'd take your cart to a golf cart shop


    Procedure to test an MCOR with a Volt Meter


    MCOR Voltage Test
    1. Place chocks at the front wheels and lift the rear of the vehicle with a chain hoist or floor jack. Position
    jack stands under the frame crossmember between the spring mount and side stringer, just forward of
    each rear wheel. See WARNING “Lift only one end...” in General Warning, Section 10, Page 10-1.
    See following NOTE.
    NOTE: The key switch should be placed in the OFF position and left in the OFF position for the duration of
    this test.
    2. With the batteries connected, place Tow/Run switch in RUN. Using a multimeter set to 200 volts DC,
    place red (+) probe on battery no. 1 positive post and place black (–) probe (with insulation-piercing
    probe) on the purple/white wire (1) at a point close to the three-pin connector at the MCOR (Figure
    11-11). The reading should be approximately 48-50 volts (full battery voltage).
    Figure 11-11 Test MCOR: Purple/White Wire (+)

    2008 IQ Plus Electric Vehicle Maintenance and Service Supplement Page 11-19
    11
    3. If reading is zero volts, check the purple/white wire continuity from the three-pin connector at the MCOR same as Precedent
    to the 24-pin connector at the speed controller. Check terminal positions in three-pin connector at the
    MCOR and the 24-pin connector. If all of the continuity readings are correct and the connectors are wired
    correctly, replace the speed controller.
    4. With multimeter set to 20 volts DC, place the black (–) probe on battery no. 8 negative post and the red
    (+) probe (with insulation-piercing probe) on the white wire (2) at a point close to the three-pin connector
    at the MCOR (Figure 11-12). The reading should be approximately 4.65 volts.
    5. If reading is zero volts, check the white wire continuity from the three-pin connector at the MCOR to the
    24-pin connector at the speed controller. Check terminal positions in three-pin connector at the MCOR
    and the 24-pin connector. If all of the continuity readings are correct and the connectors are wired correctly,
    replace the speed controller.
    6. With multimeter set to 20 volts DC, place the black (–) probe on battery no. 8 negative post and the red
    (+) probe (with insulation-piercing probe) on the yellow wire (3) at a point close to three-pin connector at
    the MCOR (Figure 11-13). The reading should be approximately 0.32 volts with the pedal up. Slowly
    press the accelerator pedal and note the readings on the multimeter. As the pedal is pressed, the reading
    should increase until it reaches 4.65 volts when the pedal is fully pressed.
    7. If reading does not increase as the pedal is pressed, replace the MCOR.
    8. If the reading is not approximately 4.60 volts with the pedal fully pressed, the vehicle will not operate at
    rated top speed. Check the MCOR resistance.
    8.1. Disconnect the battery cables as instructed. See WARNING “To avoid unintentionally start-
    Figure 11-12 Test MCOR: White Wire (+)
    Figure 11-13 Test MCOR: Yellow Wire (+)
    Passenger Side Frame Rail
    3
    ELECTRICAL SYSTEM AND TESTING Troubleshooting
    Page 11-20 2008 IQ Plus Electric Vehicle Maintenance and Service Supplement
    11
    ing...” in General Warning, Section 10, Page 10-1.
    8.2. Disconnect the 24-pin connector at the speed controller.
    8.3. Set a multimeter to 20k ohms. Connect the red (+) probe of the multimeter to the yellow wire at the
    MCOR three-pin connector with an insulation piercing probe. Connect black (–) probe to the purple/
    white wire with an insulation-piercing probe.
    8.4. With the accelerator pedal fully up (not pressed), the multimeter should read approximately 1k
    ohms.
    8.5. Slowly press the accelerator pedal while monitoring the multimeter. The resistance should rise as
    the pedal is pressed. When the pedal is all the way to the floor, the multimeter should indicate
    between 5.67k ohms and 7.43k ohms.
    8.6. Using a multimeter set for 20k ohms, connect the red (+) probe of the multimeter to the yellow wire
    at the MCOR three-pin connector with an insulation piercing probe. Connect black (–) probe to the
    white wire with an insulation-piercing probe.
    8.7. With the accelerator pedal fully up (not pressed), the multimeter should indicate between 5.67k
    ohms and 7.43k ohms.
    8.8. Slowly press the accelerator pedal while monitoring the multimeter. The resistance should drop as
    the pedal is pressed. When the pedal is all the way to the floor, the multimeter should indicate
    approximately 1k ohms.
    8.9. If the MCOR does not operate as described, replace the MCOR.

    i needed i can send you the pdf file on trouble shooting
     
  5. Thanks for all the info. I will do some testing tomorrow and get back to u with the findings. It can never hurt to have the pdf files.
     
  6. Thanks. Still trying to navigate this page. Computers are not my strong suit.
     
  7. message sent
     

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