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Short-circuit to positive: disconnect the coil connector, turn the key to ON, activate the coil
with the diagnostic tool and check the voltage at PIN 27 of the connector: if there is voltage,
restore the wiring harness, if the voltage is 0, replace the coil.
•
If open circuit, short circuit to negative: check the electrical characteristics of the coil: if not
ok, replace the coil; if ok, perform the check procedure for the coil connector and for the
Marelli control unit connector; if not ok restore; if everything is ok, check the continuity of the
cable between the two ends of the cable: if there is no continuity, restore the wiring harness;
if there is continuity, with key ON, check the cable ground insulation (from the coil connector
or control unit connector); if not ok, restore the wiring harness.
Throttle body
Function
Sends to the injection control unit the throttle position and activates the throttle according to the control
unit
Operation / Operating principle
All the unit internal components (potentiometer and electric motor) are contactless; therefore, no elec-
trical diagnosis is possible for the throttle body, but for the circuits connected to it only.
Level in electrical circuit diagram:
Throttle check and handle grip sensor (Demand)
Position:
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on the vehicle: inside the filter box
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connector: on the throttle body, in lower position, near the throttle motors
Pin out:
1. potentiometer signal 1
2. supply v 5V
3. throttle valve control command (+)
4. potentiometer signal 2
5. throttle valve control command (-)
6. ground lead
DIAGNOSTIC TOOL:PARAMETERS
Front cylinder throttle valve correction
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Example value with key ON: 0,0°
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Example value with engine on: 0.4°
Reading the intake pressures, the system tries to balance the intake pressures through the front and
rear cylinder, operating on the throttle valves positions: an acceptable value should be between -0.5
and +0.5
Rear cylinder throttle valve correction
SHIVER 900
Electrical system
ELE SYS - 163
Содержание SHIVER 900
Страница 1: ...SERVICE STATION MANUAL 2Q000335 SHIVER 900...
Страница 4: ......
Страница 6: ...INDEX OF TOPICS CHARACTERISTICS CHAR...
Страница 55: ...INDEX OF TOPICS SPECIAL TOOLS S TOOLS...
Страница 63: ...SHIVER 900 Special tools S TOOLS 63...
Страница 64: ...INDEX OF TOPICS MAINTENANCE MAIN...
Страница 76: ...INDEX OF TOPICS ELECTRICAL SYSTEM ELE SYS...
Страница 189: ...Dashboard Instrument panel pinout key PIN 1 PIN 2 Antenna 1 PIN 3 Antenna 2 SHIVER 900 Electrical system ELE SYS 189...
Страница 195: ...INDEX OF TOPICS ENGINE FROM VEHICLE ENG VE...
Страница 206: ...INDEX OF TOPICS ENGINE ENG...
Страница 284: ...INDEX OF TOPICS POWER SUPPLY P SUPP...
Страница 289: ...INDEX OF TOPICS SUSPENSIONS SUSP...
Страница 319: ...INDEX OF TOPICS CHASSIS CHAS...
Страница 355: ...INDEX OF TOPICS BRAKING SYSTEM BRAK SYS...
Страница 384: ...INDEX OF TOPICS CLUTCH SYSTEM CLU SYS...
Страница 388: ...INDEX OF TOPICS COOLING SYSTEM COOL SYS...
Страница 400: ...INDEX OF TOPICS BODYWORK BODYW...
Страница 437: ...SHIVER 900 Bodywork BODYW 437...
Страница 438: ...INDEX OF TOPICS PRE DELIVERY PRE DE...
Страница 444: ...U Use 288 364 W Water pump 393 Wiring diagram 111...