Throttle Full Close Switch: Testing and Inspection

With CONSULT
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch "OFF".
3. Remove vacuum hose connected to throttle opener.
4. Connect suitable vacuum hose to vacuum pump and the throttle opener.
5. Apply vacuum [more than -40.0 kPa (-300mmHg, 11.81inHg)] until the throttle drum becomes free from the rod of the throttle opener.
6. Turn ignition switch "ON".
7. Select "DATA MONITOR" mode with CONSULT.
8. Check indication of "CLSD THL/P SW".
Measurement must be made with closed throttle position switch installed in vehicle.

Throttle valve conditions Continuity
Completely closed Yes
Partly open or completely open No

If NG, adjust closed throttle position switch. Refer to "Basic Inspection".

9. If it is impossible to adjust closed throttle position switch in "Basic Inspection", replace closed throttle position switch.




Without CONSULT
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch "OFF".
3. Remove vacuum hose connected to throttle opener.
4. Connect suitable vacuum hose to vacuum pump and the throttle opener.
5. Apply vacuum [more than -40.0 kPa (-300mmHg, 11.81inHg)] until the throttle drum becomes free from the rod of the throttle opener.
6. Disconnect closed throttle position switch harness connector.

7. Check continuity between closed throttle position switch terminals 4 and 5.
Resistance measurement must be made with closed throttle position switch installed in vehicle.

Throttle valve conditions Continuity
Completely closed Yes
Partly open or completely open No

If NG, adjust closed throttle position switch. Refer to "Basic Inspection".

8. If it is impossible to adjust closed throttle position switch in "Basic Inspection", replace closed throttle position switch.