PIAGGIO 500 cc User Manual

Fuel injection
9 - 8
LAYOUT OF THE EMS CONTROL UNIT TERMINALS AND IMMOBILIZER
Representation of the control unit connector and the connector system side.
EMS CONTROL UNIT
N° FUNCTION N° FUNCTION
1 THROTTLE POTENTIOMETER FEED (+5V) 14 STEPPER MOTOR
2- 15 DIGITAL INSTRUMENT (FUEL INJECTION INDICATOR - NEGATIVE)
3 DIGITAL INSTRUMENT (REVOLUTIONS COUNTER CONTROL) 16 DECODER (SERIAL)
4 ENGINE TEMPERATURE (+) 17 BASE FEED (POSITIVE)
5 86 ELECTRICAL FAN ELECTROMAGNETIC SWITCH 18 AIR TEMPERATURE SENSOR (+)
6 ENGINE REVOLUTIONS SENSOR 19 85 ELECTROMAGNETIC SWITCH (PUMP-INJECTOR-H.V. COIL) (-)
7 EMS DIAGNOSIS CONNECTOR 20 H.V. COIL (NEGATIVE CONTROL)
8 - 21 STEPPER MOTOR
9 EMS DIAGNOSIS CONNECTOR 22 SENSORS FEED (-)
10 EMS DIAGNOSIS CONNECTOR 23 CONTROL UNIT NEGATIVE
11 THROTTLE POTENTIOMETER SIGNAL 24 STEPPER MOTOR
12 ENGINE REVOLUTIONS SENSOR 25 -
13 INJECTOR CONTROL (NEGATIVE) 26 UNDER PANEL FEED (POSITIVE)
DECODER
N° FUNCTION
1-
2 IMMOBILIZER LED CONTROL (NEGATIVE)
3 BASE FEED (POSITIVE)
4 NEGATIVE
5-
6 EMS CONTROL UNIT (SERIAL)
7-
8 UNDER PANEL FEED (POSITIVE)
IMMOBILIZER AERIAL
IMMOBILIZER AERIAL
CONTROL UNIT SIDE SYSTEM SIDE

PIAGGIO 500 cc Specifications

General

Brand	PIAGGIO
Model	500 cc
Category	Engine
Language	English