Operation CHARM: Car repair manuals for everyone.

Throttle Full Close Switch: Testing and Inspection


1. Disconnect electrical connector from idle switch.
2. Start and run engine at idle and check for continuity between connector terminals. There should be continuity between upper and lower right terminals and no continuity between upper and lower left terminals.
3. Accelerate engine to 950-1050 RPM. There should now be continuity between upper and lower left terminals and no continuity between upper and lower right terminals.