Mode IV (Switches ON/OFF Diagnostic System)

MODE IV - SWITCHES ON/OFF DIAGNOSTIC SYSTEM

In switches ON/OFF diagnosis system, ON/OFF operation of the following switches can be detected continuously.

- Idle switch
- Starter switch
- Vehicle speed sensor

(1) Idle switch & Starter switch

The switches ON/OFF status in mode IV is stored in E.C.U. memory. When either switch is turned from "ON" to "OFF" or "OFF" to "ON", the red L.E.D. on E.C.U. alternately comes on and goes off each time switching is performed.

(2) Vehicle Speed Sensor

The switches ON/OFF status in mode IV is selected is stored in E.C.U. memory. The green L.E.D. on E.C.U. remains off when vehicle speed is 20 km/h (12 MPH or below), and comes ON at higher speeds.




Self Diagnostic Procedure