PIAGGIO PORTER 1.3 16V 2008, Service Manual

Page: 383 / 892

- THE NUMBER OF THE SPECIAL TOOL CONNECTOR
TERMINAL IS THE SAME THAT THE ELECTRONIC CON-
TROL UNIT CONNECTOR NUMBER (SEE TERMINAL LAY-
OUT OF THE INJECTION SYSTEM ELECTRONIC CON-
TROL UNIT)
- STORE THE ERROR CODE BEFORE
DISCONNECTING THE BATTERY CABLE TO AVOID THAT
IT IS CLEARED WHEN THE CABLE IS DISCONNECTED.
2. Disconnect connectors , B, C, D, from the ECU
electronic control unit, placed under the glove-box
on the passenger side.
3. Connect the special tool indicated below be-
tween the cable harness connectors B and con-
nectors of ECU A .
Specific tooling
020463Y ECU-EFI interface cable harness to
check the injection system electrical values.
4. Reconnect the battery ground lead to the negative terminal (-).
N.B.
- WHEN THE INJECTION SYSTEM ELECTRONIC CONTROL UNIT CONNECTORS ARE DISCON-
NECTED OR CONNECTED, BE CAREFUL THAT THE BATTERY IS DISCONNECTED, WITH THE
IGNITION SWITCH AND ALL THE ACCESSORY SWITCHES SET TO OFF.
- WHEN FITTING THE NEW BATTERY, BE CAREFUL NOT TO REVERSE POLARITY. FAILURE
TO OBSERVE THIS SAFETY MEASURE COULD CAUSE A MALFUNCTION OF THE ELECTRONIC
CONTROL UNIT.
- BEFORE USING THE SPECIAL TOOL, CHECK THERE ARE NO SHORT CIRCUITS OR INTER-
RUPTED WIRES BETWEEN TERMINALS<.
Data link connector (common destinations)
The vehicle engine electronic control unit adopts the ISO 14230 protocol (Euro-OBD). As regards the
position, shape of the connector and pin layout, the data link connector complies with the standards
ISO 15031-3 (SAEJ1962) and the format ISO 14230. The OBD II serial data line (ISO 14230 K line) is
used for the OBD II general scanning device or for the diagnostic tester DS-21, to allow communication
with the electronic control unit.
PORTER 1.3 16V
Iniection System
IS - 383