Throttle Position Sensor

Idle Switch Test:

1. Start and warm the engine to operating temperature.
2. Disconnect the idle switch connector.
3. Connect an ohm meter or continuity tester between terminals B and C.
4. Connect a tachometer to the engine.
5. Raise the engine rpm to 2000 rpm and slowly lower to idle.
6. Confirm that continuity does not exist until the throttle is closed.
7. If not within specified range, loosen the two securing screws and rotate switch until within range.
8. Tighten screws and recheck.