Troubleshooting:
•
Short-circuit to positive: disconnect the valve connector and check with the key ON if there
is ground continuity at PIN 5 of the connector: if there is voltage, disconnect the instrument
panel connector as well, and if there is voltage, restore the wiring harness and if there is no
voltage, replace the instrument panel; if there is no voltage, replace the motor.
•
If short circuit to negative, open circuit: check the valve connector and the instrument panel
connector: if they are not ok, restore; if they are ok, check continuity on the Brown/White: if
not ok, restore; if ok, with the two connector disconnected, check the ground insulation: if
there is ground continuity, disconnect the instrument panel connector as well, and if there
is ground, restore the wiring harness and if there is no ground, replace the instrument panel;
if there is no ground continuity, replace the motor.
DIAGNOSTIC TOOL: LOGIC ERRORS
P1500 Exhaust valve position
Functional diagnosis:
•
position error.
Error cause:
•
The position indicate by the potentiometer does not correspond to the one set by the control
unit.
This error is indicated by flashing the general warning light and by lighting up in a fixed manner the MI
warning light.
Troubleshooting:
•
Perform a mechanical check of the valve, check its normal rotation (with the cables discon-
nected from the motor, manually operate the cables and notice the movement regularity,
checking the complete stroke of the valve with the correct operation of the return spring) and
the absence of foreign objects that might obstruct its rotation: if not ok, restore; if ok, perform
the check procedure fro the valve connector and for the instrument panel connectors (ay
attention to oxidation signs) and check the cable resistance: if not ok, restore; if ok, with the
cables disconnected, check at key ON the normal rotation of the electric motor and replace
the motor (the potentiometer does not operate properly).
DIAGNOSTIC TOOL: ADJUSTABLE PARAMETERS
•
Exhaust valve zero search
NOTES: The motor is placed in a reference position to be able to perform subsequently the correct
mechanical stoppers search.
•
Exhaust valve self-learning
NOTES: Performs the minimum and maximum mechanical stoppers search.
CAUTION
Electrical system
Tuono V4 1100 Factory
ELE SYS - 238
Summary of Contents for 2Q000504
Page 1: ...SERVICE STATION MANUAL 2Q000504 Tuono V4 1100 Factory ...
Page 4: ......
Page 6: ...INDEX OF TOPICS PRE DELIVERY PRE DE ...
Page 12: ...INDEX OF TOPICS CHARACTERISTICS CHAR ...
Page 55: ...INDEX OF TOPICS SPECIAL TOOLS S TOOLS ...
Page 63: ...INDEX OF TOPICS MAINTENANCE MAIN ...
Page 103: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS ...
Page 270: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE ...
Page 299: ...INDEX OF TOPICS ENGINE ENG ...
Page 415: ...INDEX OF TOPICS POWER SUPPLY P SUPP ...
Page 425: ...INDEX OF TOPICS SUSPENSIONS SUSP ...
Page 463: ...INDEX OF TOPICS CHASSIS CHAS ...
Page 508: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS ...
Page 548: ...INDEX OF TOPICS COOLING SYSTEM COOL SYS ...
Page 561: ...INDEX OF TOPICS BODYWORK BODYW ...