Troubleshooting; Troubleshooting The Vehicle With The Iqdm - Club Car IQ Plus 2008 Maintenance And Service Manual Supplement

11
ELECTRICAL SYSTEM AND TESTING
• 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 vehi-
cle 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, Section 18, Page 18-4.
• Motor Protection Circuit: The operator should never attempt to hold the vehicle on an incline by press-
ing 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, Section 12,
Page 12-11.
• High Pedal Detect: This function prevents unexpected vehicle movement if the key switch is turned
ON after the accelerator is pressed, or the accelerator pedal is pressed when Forward/Reverse switch
is used to change the direction of travel. The vehicle will not move until the accelerator is released and
pressed again. When this situation arises, a HPD fault is recorded by the speed controller and will be
displayed on an IQDM handset in the Diagnostic History menu. See 06 HPD, Section 12, Page 12-11.
• 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 regen-
erative 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 11-45.

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.
ý
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 techni-
cian should proceed to Troubleshooting Guide 2.
If an IQDM handset is unavailable, the technician should proceed to Troubleshooting Guide 2.
Page 11-8 2008-2011 IQ Plus Electric Vehicle Maintenance and Service Supplement
Troubleshooting