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•
Performed/Not performed
Indicates if the self-learning with the diagnostic tool was performed/not performed: if it was performed
one time, it will always remain performed unless a control unit EEPROM reset is carried out
DIAGNOSTIC TOOL: ELECTRICAL ERRORS
CAUTION
IF ERRORS ARE DETECTED ON BOTH THROTTLE BODIES, CHECK ALSO THE CORRECT SUP-
PLY OF THE CONTROL UNIT TO PIN 42.
P0120 Front throttle valve position potentiometer sensor
Electrical diagnosis:
•
short circuit to positive / open circuit, short circuit to negative
Error cause:
•
Short-circuit to positive: excessive voltage has been detected on PIN 48. If open circuit, short
circuit to negative: voltage equal to zero detected at PIN 48.
Troubleshooting:
•
Short-circuit to positive: check the value indicated by the Potentiometer 1 front Throttle valve
parameter (voltage): disconnect the connector and read the value indicated in the diagnostic
tool: if the voltage does not vary, there is a short circuit in the concerned cable; replace the
throttle body if the voltage drops to zero
•
If open circuit, short circuit to negative: perform the check procedure for the throttle body
connector and control unit connector; if not ok, restore, if everything is ok, check the con-
tinuity of the circuit between the two ends; if not ok, restore the wiring harness, if ok, check
the ground insulation of the circuit (from the throttle body connector or control unit connec-
tor); if ground insulated, check that at PIN 2of the throttle boy connector there is power supply
(+5 V) and that at PIN 6 there is ground; if they are correct, replace the throttle body.
P2120 Rear throttle valve position potentiometer 1 sensor
Electrical diagnosis:
•
short circuit to positive / open circuit, short circuit to negative
Error cause:
•
Short-circuit to positive: excessive voltage has been detected on PIN 36. If open circuit, short
circuit to negative: voltage equal to zero detected at PIN 36.
Troubleshooting:
•
Short-circuit to positive: check the value indicated by the Potentiometer 1 rear Throttle valve
parameter (voltage): disconnect the connector and read the value indicated in the diagnostic
tool: if the voltage does not vary, there is a short circuit in the concerned cable; replace the
throttle body if the voltage drops to zero
•
If open circuit, short circuit to negative: perform the check procedure for the throttle body
connector and control unit connector; if not ok, restore, if everything is ok, check the con-
Electrical system
SHIVER 900
ELE SYS - 166
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...