Diagnosis Tester Link Circuit; Circuit Diagram - PIAGGIO 500 cc Service Manual

Fuel injection

DIAGNOSIS TESTER LINK CIRCUIT

CIRCUIT DIAGRAM

DIAGNOSIS
TESTER
CONNECTOR
Connect the diagnosis tester n° 020460Y see page 9-17.
If the diagnosis tester gives the information "THE CONTROL UNIT DOES NOT RESPOND", remove the under-panel
feed for 10 seconds and reset to "ON"; if the same information is repeated proceed as follows:
Check the diagnosis tester connections
Check the basic and under-panel feeds
of the control unit (see page 9-8).
Interpose the special tool 020481Y between the control
unit and the fuel injection system (see page 9-8).
Keep the control unit disconnected.
9 - 34
VEHICLE
SYSTEM
3
2
1
YES
FUEL INJECTION
SYSTEM
9
23
10
NO
Reset