Operation CHARM: Car repair manuals for everyone.

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 at the point when mode IV is selected 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 detected.
(2) Vehicle Speed Sensor
The switches ON/OFF status at the point when mode IV is selected is stored in E.C.U. memory. When vehicle speed is 20 km/h (12 MPH) or slower, the green L.E.D. on E.C.U. is off. When vehicle speed exceeds 20 km/h (12 MPH), the green L.E.D. on E.C.U. comes "ON".





SELF-DIAGNOSTIC PROCEDURE

CAUTION:
- For safety, do not drive rear wheels at higher speed than required.