22
Troubleshooting
ELECTRICAL SYSTEM AND TESTING:
ELECTRIC VEHICLES
•
Tow/Run Switch:
When the Tow/Run switch is in the RUN position, the vehicle will function normally. When the
switch is in the TOW position, power to the OBC and controller is shut off, disabling the vehicle operating circuit and
walk away braking, allowing the vehicle to be towed.
•
Speed Calibration:
This function allows the vehicle’s top speed to be calibrated in 0.1 mph (0.2 km/h) increments.
See M1/M2 Speed Cal on page 29-3.
•
Motor Protection Circuit:
The operator should never attempt to hold the vehicle on an incline by pressing the
accelerator pedal instead of the brake pedal, as motor overheating could result. By reducing the current to the
motor during such an occurrence, the motor protection circuit reduces the possibility of motor damage. When this
situation arises, a
motor stall fault
is recorded by the speed controller and will be displayed on an IQDM handset in
the Diagnostic History menu.
See 13 Motor Stall on page 23-13.
•
High Pedal Detect:
This function prevents unexpected vehicle movement if the key switch is turned ON after the
accelerator is pressed or the Forward/Reverse switch is used to change the direction of travel while the vehicle is
being driven. The vehicle slowly comes to a controlled stop, then starts to gradually accelerate in the new direction.
If either situation arises, an
HPD fault
is recorded by the speed controller and will be displayed on an IQDM handset
in the Diagnostic History menu.
•
Onboard Computer (OBC):
The OBC, 1) monitors battery condition, 2) monitors the number of energy units used
by the vehicle, 3) determines the number of energy units required to recharge the batteries and shuts the charger
off when this number is reached, 4) determines when to activate regenerative motor braking, 5) locks out vehicle
movement while the charger is plugged into the vehicle charger receptacle, 6) stores operating data, which can be
read by the Communication Display Module (CDM).
See Communication Display Module (CDM) on page 22-36.
TROUBLESHOOTING
The following troubleshooting guides will be helpful in identifying operating difficulties should they occur. The guides
include the symptom, probable cause(s) and suggested checks. The procedures used in making these checks can be
found in the referenced sections of this maintenance and service supplement.
TROUBLESHOOTING THE VEHICLE WITH THE IQDM
Club Car recommends the use of the IQDM handset for troubleshooting vehicles equipped with the IQ Plus electrical
system. Troubleshooting Guide 1 is to be used in conjunction with the IQDM handset. Refer to the IQDM Owner’s
Manual for operating instructions.
See following WARNING.
WARNING
• The vehicle operator should not monitor the IQDM while the vehicle is in motion. A technician can
monitor the IQDM while traveling as a passenger in the vehicle. Failure to heed this warning could
result in severe personal injury or death.
In the event that the vehicle is not functioning properly after completing Troubleshooting Guide 1, the technician
should proceed to Troubleshooting Guide 2.
If an IQDM handset is unavailable, the technician should proceed to Troubleshooting Guide 2.
Page 22-4
2007-2009 Turf 252, Carryall 252 and XRT 900 Maintenance and Service Manual
