Mode IV (Switches ON/OFF Diagnostic System)

SWITCHES ON/OFF DIAGNOSTIC TEST MODE 4
In switches ON/OFF diagnostic system, ON/OFF operation of the following switches can be detected continuously.
^ Soft closed throttle position switch
^ Starter switch
^ Vehicle speed sensor
(1) Closed throttle position switch & Starter switch
The switches ON/OFF status in Diagnostic Test Mode IV is stored in ECM memory. When either switch is turned from "ON" to "OFF" or "OFF" to "ON", the red LED on ECM alternately comes on and goes off each time switching is performed.
(2) Vehicle speed sensor
The switches ON/OFF status in Diagnostic Test Mode IV is selected is stored in ECM memory. The green LED on ECM remains off when vehicle speed is 20 km/h (12 MPH) or below, and comes ON at higher speeds.

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




PROCEDURE