User manual

14
10. DIAGNOSTICS
5.1 Diagnosing and troubleshooting using programmer diagnostics mode
Connect the programmer. Turn the key switch on. Press the DIAGNOSTICS key.
The display should indicate NO FAULTS FOUND. If there is a problem the Status indicator will
flash a diagnostic code and the programmer will display a diagnostic message.
List of messages:
You should read the explanations included in the paragraph 1.2 too.
PROGRAMMER DISPLAY EXPLANATION Status Led code
THERMAL CUTBACK Cut back due to over-temperature (1,1)
THROTTLE FAULT 1 Throttle input voltage out of range (1, 2)
SPD LIMIT POT FAULT Loose connection
Front board faulty
Controller faulty
(1, 3)
LOW BATTERY VOLTAGE Battery voltage too low (1, 4)
MAIN OFF FAULT Main controller driver fault (2,1)
MAIN ON FAULT Main controller driver fault (2,4)
MAIN CONT WELDED Main controller driver fault (2, 2)
MAIN ON FAULT Main controller driver fault (2, 4)
PROC / WIRING FAULT HPD fault is present more than 10s
The fault caused by misadjusted
potentiometer, broken throttle
potentiometer or broken throttle
mechanism
(3,1)
PRECHARGE FAULT Controller failure or low battery
voltage
(3, 3)
HW FAILSAFE Motor voltage fault (4, 2)
EEPROM FAULT EEPROM Fault-controller faulty (4, 3)
NO KNOWN FAULTS
POWER SECTION FAULT Check controller and motor power
connection
(4, 4)
HPD The HPD feature prevents
controller output if the vehicle is
powered when the throttle is not in
neutral. If the controller latches
cycle the key switch for resuming.
(3, 4)
EXAMPLE 1
Symptom: the scooter appears to run only in reduced speed range.
The handheld programmer set in Diagnostic mode indicates NO KNOWN FAULTS.
Put the programmer in TEST mode and scroll down to observe the line MODE INPUT A.
Turn the switch LOW / HIGH switch into LOW position.
You should see MODE INPUT A OFF. Turn the switch into HIGH position. You should see
MODE INPUT A ON. If the reading does not appear correctly proceed by:
- Checking the cable that interfaces Front board with the Controller.
- Checking the switch connection with Front board
- Checking and replacing the switch
If the reading is correct then replace the controller.