Monitor Description
OUTLINE OF DIAGNOSIS
Detect instantaneous open in ignition switch input circuit to ECM.
Judge as NG if out of specification.
COMPONENT DESCRIPTION
ECM monitors the voltage of the ignition switch input circuit. Judge as ignition switch ON when the voltage is the specified value or more.
EXECUTION CONDITION
| Secondary parameters | Execution condition |
|---|---|
| Battery voltage | 10.9 V or higher |
| Engine speed | 550 RPM or more |
GENERAL DRIVING CYCLE
Perform the diagnosis every time after the enable conditions have been established.
DIAGNOSTIC METHOD
Judge as NG when the following conditions are established within the predetermined time.
Judgment value
| Malfunction Criteria | Threshold Value |
|---|---|
| Number of instantaneous opens in ignition switch input circuit | 5 time (s) or more |
Time needed for diagnosis
5000 ms
Malfunction indicator light illumination
Illuminates as soon as a malfunction occurs.