mitsubishi Workshop Repair Guides

Mitsubishi Workshop Service and Repair Manuals

Closed Throttle Position Switch <--> [Throttle Full Close Switch]|Locations|Page 877 > < Closed Throttle Position Switch <--> [Throttle Full Close Switch]|Locations|Page 875
Page 1
background image

Closed Throttle Position Switch: Testing and Inspection

Idle Position Switch Circuit

To test the Idle Switch, located on the throttle body, proceed as follows.

COMPONENT TEST

1. Disconnect the ISC (idle speed control) motor connector.
2. With the throttle closed, use an ohm meter and check for continuity between terminal 3 and ground.

Continuity

Should exist.

3. Open the throttle approximately 50%, use an ohm meter and check for continuity between terminal 3 and ground.

Continuity

Should not exist.

HARNESS TEST:

1. Disconnect the ISC connector and turn the key to the ON position.
2. Using a Voltmeter, check the Voltage between the harness connector terminal 3 and ground.

Voltage:

4 - 5 Volts.

3. Turn the key OFF, disconnect the negative battery cable and the ECU Connector.
4. Using an ohm meter, check for continuity between ECU harness terminal 6 and ISC harness terminal 3.

Closed Throttle Position Switch <--> [Throttle Full Close Switch]|Locations|Page 877 > < Closed Throttle Position Switch <--> [Throttle Full Close Switch]|Locations|Page 875