15
15-7
(2) Diagnosis function
• While the starter switch is on, the diagnosis function is constantly activated to find faults in various sensors. Upon
any sensor being found faulty, the driver is informed of the fault through the display in the meter cluster. At the
same time, the fault is memorized in the form of a diagnosis code and the system starts to effect necessary at-
fault control(s).
• During at-fault control(s), the system is limited in the workings to ensure the safety of the vehicle and driver. The
memorized diagnosis code can be accessed on the Multi-Use Tester screen or through blinking of warning lamp.
• Diagnosis codes are different in the way of indication between the Multi-Use Tester and blinking of the warning
lamp.
• The Multi-Use Tester provides more specific diagnosis codes.
3.3 Electronic control unit connection diagram
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