Operation CHARM: Car repair manuals for everyone.

Throttle Full Close Switch: Testing and Inspection

1. Warm up the engine and run it at idle.
2. Connect a tachometer to the engine.

Idle Switch Inspection:





3. Connect a voltmeter to the idle switch terminal (LG/R) as shown.
4. Increase the engine speed to more than 2,000 rpm; decelerate gradually and verify that the voltmeter indicates as shown in the following chart.

Reference Chart:




Adjusting Idle Speed:





5. If not as specified, turn the adjust screw to adjust.