Club Car 2009-20011 Electric Precedent Maintenance And Service Manual page 236

14
Troubleshooting
TROUBLESHOOTING GUIDE 1
SYMPTOM
Diagnostic Menu – THROTTLE FAULT fault
code
Diagnostic Menu – HW FAILSAFE (Hardware
Failsafe) fault code
Diagnostic Menu – MAIN WELDED (main
solenoid contacts welded) fault code
Diagnostic Menu – MAIN DRIVER ON or MAIN
DRIVER OFF fault code
Diagnostic Menu – MAIN COIL FAULT fault
code or Diagnostic Menu – MAIN DROPOUT
(1 or 2) fault code
Diagnostic Menu – FIELD MISSING fault code
Diagnostic Menu – HPD (high pedal detect)
fault code
Diagnostic Menu – LOW BATTERY fault code
Diagnostic Menu – MOTOR STALL fault code
Page 14-10 2009-2011 Electric Precedent Maintenance and Service Manual
POSSIBLE CAUSES
Loose or disconnected three-pin connector at
the MCOR or broken wire
Loose or disconnected 16-pin connector at
speed controller or broken wire
Failed MCOR
Armature drive FET's (field-effect transistors)
inside speed controller have failed
Speed controller logic malfunction
solenoid contacts have failed closed
Speed controller logic malfunction
Failure of the FET that controls the solenoid
coil
Solenoid coil has failed in an open condition
Loose or disconnected motor field coil wires at
motor or speed controller or broken wire
Failure of the motor field windings
Failure of the FET's that control field current
Operator error
Batteries require charging
Improperly maintained or failed batteries
Operator error
EXCEL SYSTEM TROUBLESHOOTING – MCOR
CORRECTIVE ACTION
Repair and/or connect the three-pin connector
to the MCOR
Repair and/or connect the 16-pin connector
to the speed controller
Test Procedure 4 – MCOR Voltage on page
14-16
Replace the speed controller. See Speed
Controller Removal on page 17-12.
Disconnect the batteries and allow the
speed controller capacitors to discharge.
See WARNING "To avoid unintentionally
starting..." in General Warnings on page
1-1. Reconnect the batteries and see if the
symptom returns.
Replace solenoid. See Solenoid Removal on
page 17-13.
Disconnect the batteries and allow the
speed controller capacitors to discharge.
See WARNING "To avoid unintentionally
starting..." in General Warnings on page
1-1. Reconnect the batteries and see if the
symptom returns.
Replace the speed controller. See Speed
Controller Removal on page 17-12.
Replace solenoid. See Solenoid Removal on
page 17-13.
Repair and/or connect the field coil wires
See Section 20 – Motor (Model EJ4-4001 and
EJ8-4001A).
Replace the speed controller. See Speed
Controller Removal on page 17-12.
Train operators to fully remove foot from
accelerator pedal before turning key switch
to the ON position or changing the selected
direction with the Forward/Reverse switch
Place batteries on battery charger and allow
them to fully charge
See Section 18 – Batteries.
Train operators to use the brake to hold the
vehicle on a hill, rather than holding the vehicle
on a hill using the accelerator pedal