Club Car 2009-20011 Electric Precedent Maintenance And Service Manual page 118

11
Troubleshooting
TROUBLESHOOTING GUIDE 1
SYMPTOM
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
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
Diagnostic Menu – OPEN ARMATURE fault
code
Page 11-10 2009-2011 Electric Precedent Maintenance and Service Manual
POSSIBLE CAUSES
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
Loose or disconnected motor armature wires
at motor or speed controller or broken wire
Failure of the motor armature or brushes
Failure of the FET's that control armature
current
IQ SYSTEM TROUBLESHOOTING – TPS
CORRECTIVE ACTION
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 discharge the
controller. See Disconnecting the Batteries
– Electric Vehicles on page 1-3. 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
Repair and/or connect the motor armature
wires
See Section 20 – Motor (Model EJ4-4001 and
EJ8-4001A).
Replace the speed controller. See Speed
Controller Removal on page 17-12.