Club Car Precedent 2004 Maintenance And Service page 98

11
ELECTRICAL SYSTEM AND TESTING
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
Troubleshooting Guide continued on next page...
Page 11-14 2004 Precedent IQ System Golf Car 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
Troubleshooting
CORRECTIVE ACTION
Replace the speed controller. See Speed
Controller Removal, Section 12,
Page 12-11.
Disconnect the batteries and allow the
speed controller capacitors to discharge.
See WARNING "To avoid
unintentionally starting..." in General
Warnings, Section 1, Page 1-2.
Reconnect the batteries and see if the
symptom returns.
Replace solenoid. See Solenoid
Removal, Section 12, Page 12-12.
Disconnect the batteries and allow the
speed controller capacitors to discharge.
See WARNING "To avoid
unintentionally starting..." in General
Warnings, Section 1, Page 1-2.
Reconnect the batteries and see if the
symptom returns.
Replace the speed controller. See Speed
Controller Removal, Section 12,
Page 12-11.
Replace solenoid. See Solenoid
Removal, Section 12, Page 12-12.
Repair and/or connect the field coil wires
Section 15 – Motor
Replace the speed controller. See Speed
Controller Removal, Section 12,
Page 12-11.
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
Section 13 – 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