PIAGGIO 2005 XEVO 400ie, Руководство по ремонту

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5 - Check the control unit connector. Check the
control unit.
6 - Check the continuity between pin 15 of the
control unit and pin 16 of connector B of the in-
strument panel.
The injection ECU manages the negative of the light. The light must go off after the initial check. The
light goes on again when the ECU self-diagnosis detects a fault. When the fault disappears the light
goes back off, however, the related operating tests need to be carried out. The light can go on whether
the engine is able to run or not.
Self-diagnosis system
The injection control unit is provided with an auto-diagnosis function.
When a failure is detected, the control unit:
- turns on the injection telltale light (only when it is current).
- enables the engine management check according to the data entered in the control unit (where pos-
sible).
- stores the failure (always).
In the event of intermittent failures, the indicator follows the failure trend and storage remains active.
Stored data are automatically deleted when the failure does not occur for over 16 usage cycles of the
scooter (heating - use - cooling). The battery disconnection does not delete stored data.
Checking stored failures
Connect the diagnostic tester to the scooter sys-
tem.
Select the function "ERROR" in the menu.
Specific tooling
020680Y Diagnosis Tool
XEVO 400ie
Injection
INJEC - 187