Galant L4-1997cc 2.0L DOHC (1990)
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 idle switch connector.
2. With the throttle closed, use an Ohm meter and check for continuity between terminal 1 and ground.
Continuity
Should exist.
3. Open the throttle approximately 50%, use an Ohm meter and check for continuity between terminal 1 and ground.
Continuity
Should not exist.
HARNESS TEST:
1. Disconnect the idle switch connector and turn the key to the ON position.
2. Using a Voltmeter, check the Voltage between the harness connector terminal 1 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 idle position switch harness terminal 1.
Continuity
Should exist.
5. Using an Ohm meter, check for continuity between ECU harness terminal 6 and ground.
Continuity
Should not exist.
