Hw Failsafe; Fault History; Clear Fault History; Functions Menu - Club Car Precedent 2014 Maintenance And Service Manual

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Functions Menu

CAUTION
• A failed motor will ruin a controller. If a new controller is installed in a vehicle with a bad motor, the
bad motor will blow the field FET in the new controller. Always check the motor before replacing a
controller when a FLD Missing fault is shown.
What it means: Not necessarily a controller issue.
What to do: Check in this order: connections and continuity of orange and blue motor field wires, short in motor,
and then controller. See External Motor Testing, Section 17, Page 17-1.

HW FAILSAFE

The armature drive FETs (field effect transistors) regulate the armature current. If the speed controller detects a failure
of the armature drive FETs or circuitry, a hardware failsafe fault is detected.
What it means: A catastrophic failure internal to the controller on either the power board or the logic board.
What to do: Check motor before replacing controller.

FAULT HISTORY

The fault history menu can be useful in determining the cause of a vehicle problem; however, the fault history alone
should not be the factor that determines when a component is replaced. Some faults detected by the speed controller
are not the result of a failed component, and are instead the result of vehicle operator error. If a fault appears in the
fault history menu, the trained technician should attempt to determine when and where the fault has occurred. For
example, if the motor stall fault is present in the fault history, the trained technician may be able to determine the
location on the course where an operator has held the vehicle on a hill by using the accelerator pedal.

CLEAR FAULT HISTORY

After a repair has been made, the fault history should be cleared. This will enable the trained technician to properly
troubleshoot the vehicle in the future, in the event that another problem occurs. It is recommended that the fault history
be cleared in order to avoid the replacement of a component that caused a fault in the past, but has been replaced and
is now functioning correctly. For example, if the MCOR (Motor Controller Output Regulator) was disconnected and the
speed controller detected a fault code associated with the throttle, the fault history should be cleared so that any future
problem is not diagnosed incorrectly as a throttle problem. See Clear Fault History on page 26-21.
FUNCTIONS MENU
The functions menu is accessed by using the up or down arrow to scroll to functions and pressing the right arrow
key to activate the menu.

GET SETTINGS FROM CONTROLLER

This function transfers all of the speed controller settings (except for "private speed mode") from the vehicle speed
controller to the handset. This enables the trained technician to "clone" a speed controller. Once the speed controller
Page 26-16 2014 Precedent ® Golf Car Maintenance and Service Manual
IQ DISPLAY MODULE (IQDM) AND IQDM-P
DIAGNOSTICS: EXCEL SYSTEM WITH
ERIC CHARGING