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TUONO V4 R a-PRC ABS
TROUBLESHOOTING PROCEDURE IN THE EVENT THAT THE EFI INDICATOR LIGHT SHOULD
APPEAR ON THE INSTRUMENT PANEL OR IN THE CASE OF ABNORMAL ENGINE BEHAVIOUR
CAUTION
BEFORE CARRYING OUT ANY TROUBLESHOOTING, CAREFULLY READ THE GENERAL TROU-
BLESHOOTING CONCEPTS FOR ELECTRICAL DEVICES AT THE BEGINNING OF THE CHECK
AND CONTROL SECTION IN THE ELECTRICAL SYSTEM CHAPTER.
•
1 - THE "EFI" WARNING LIGHT IS ON AND THE WORD "SERVICE" IS SHOWN or THE
"EFI" WARNING LIGHT IS FLASHING AND THE WORDS "URGENT SERVICE" ARE
SHOWN or ONE OF THE TWO SITUATIONS TAKES PLACE AND IS SUDDENLY OUT or
THERE IS ABNORMAL ENGINE PERFORMANCE
•
2 - CONNECT TO THE DIAGNOSIS INSTRUMENT THROUGH CONTROL UNIT BY SE-
LECTING "SELF-ACQUISITION, APRILIA, TUONO V4"
•
3 - ARE CURRENT- "ATT"- or STORED- "MEM"- ERRORS SHOWN IN THE "ERRORS
DISPLAY" SCREEN PAGE?
•
4 - IF THE ERROR IN THE CENTRAL WINDOW IS SELECTED AND "?" IS DISPLAYED,
PRESS THE KEY "?" TO OBTAIN FURTHER INFORMATION ABOUT THE ERROR. THEN
GO TO THE "ELECTRICAL SYSTEM/CHECKS AND CONTROLS" CHAPTER AND READ
THE INFORMATION CONCERNING THE DEFECTIVE COMPONENT
•
5 - ACCORDING TO WHAT IS INDICATED ABOUT THE ERROR/S, PROCEED AS SUG-
GESTED AND SOLVE THE PROBLEM
•
6 - WAS THE PROBLEM SOLVED BY REPLACING THE MARELLI CONTROL UNIT?
•
7 - READ THE ACTIVATION PROCEDURE FOR A NEW CONTROL UNIT ON THE "ELEC-
TRICAL SYSTEM/CHECKS AND CONTROLS/ECU/MARELLI CONTROL UNIT" CHAP-
TER - END
•
8 - SELECT "ERROR CLEARING" FROM THE "DEVICES ACTIVATION (INJECTOR
ICON)" SCREEN PAGE
•
9 - WAS THE PROBLEM SOLVED BY REPLACING THE THROTTLE GRIP SENSOR
(DEMAND) OR THE THROTTLE BODY?
•
10 - READ THE RESET PROCEDURE ON THE "ELECTRICAL SYSTEM/CHECKS AND
CONTROLS/THROTTLE GRIP POSITION SENSOR OR THROTTLE BODY" CHAPTER -
END
•
11 - CHECK IF THERE ARE CURRENT OR STORED ERRORS DETECTED BY THE IN-
STRUMENT PANEL REFERRING TO THE "DIAGNOSIS" CHAPTER, "INSTRUMENT
YES, go to 4; NO, go to 11.
YES, go to 7; NO, go to 8.
NO, END; YES, go to 10
Troubleshooting
TROUBL - 85
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