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TUONO V4 R a-PRC ABS
TROL UNIT INDICATES ERRORS RELATED TO THE FRONT AND REAR THROTTLE
BODY)
•
3. CHECK CONTINUITY WITH GROUND CONNECTION AT PIN 5 and 16
If there is continuity, go to 4; if there is not continuity, restore ground connection on the engine
•
4. REPLACE CONTROL UNIT, SEE "ELECTRICAL SYSTEM/CHECK AND CONTROLS/
CONTROL UNIT " THE PART RELATED TO NEW CONTROL UNIT ACTIVATION PRO-
CEDURE - END
•
5. CHECK CONTINUITY red/blue CABLE up to secondary fuse D and red/white cable from
secondary fuse to 30 A main fuse CHECKING ALSO THE ENGINE - VEHICLE CABLE
HARNESS CONNECTOR - END
•
6. CHECK CONTINUITY OF RED/BROWN CABLE FROM PIN 40 TO PROTECTION RE-
LAY 16 CHECKING ENGINE - VEHICLE ELECTRICAL SYSTEM CONNECTOR
If there is continuity, go to PROTECTION RELAY 16 CHECK; if there is not continuity, restore
See also
Control unit
CHECK FUEL PUMP
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1. WITH KEY SET TO "ON", DISCONNECT THE CONNECTOR AND CHECK THAT
THERE IS BATTERY VOLTAGE ON PIN 1
•
2. CHECK FUEL PUMP CONNECTOR AND CHECK THAT AT PIN 2 THERE IS GROUND
CONTINUITY
•
3. CHECK ON CONNECTOR ON THE PUMP SIDE, THE ELECTRICAL CHARACTERIS-
TICS: between PIN 1 and PIN 2 there should be a resistance of 0.5 - 1 ohm - END
•
4. CHECK CONTINUITY OF ORANGE/GREEN CABLE FROM PUMP CONNECTOR TO
INJECTION RELAY 33 AND RESTORE CABLE HARNESS - END
•
5. RESTORE GROUND CONNECTION - END
DIAGNOSIS INSTRUMENT CONNECTION CHECK
•
1. CHECK CONTINUITY OF WHITE/BLUE CABLE FROM PIN 14 OF THE CONTROL UNIT
ON CABLE HARNESS SIDE TO PIN 3 OF THE BLACK CONNECTOR OF THE DIAGNO-
SIS
YES, go to 3; NO, go to 6
front part or restore cable harness
cable harness - END
YES, go to 2; NO, go to 4
YES, go to 3; NO, go to 5
YES, go to 2; NO, go to 4
Troubleshooting
TROUBL - 89
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