Galant L4-1997cc 2.0L SOHC 16 Valve (1993)
Idle Speed Motor Position Sensor: Testing and Inspection
Idle Air Control Valve Position Sensor Circuit
Engine Control Module Connector--For Pin Applications See Components
TIP:
-
The IAC valve position sensor is the most important sensor for controlling the idle speed.
-
If a malfunction develops when the engine is idling and the engine load is varied by turning the A/C ON and OFF etc., this sensor is probably
defective.
HARNESS TEST
1. Disconnect the ISC connector and turn the key to the ON position.
2. Using a Voltmeter, measure the power supply Voltage between the harness connector terminals 2 and ground and 4 and ground.
Voltage: ..................................................................................................................................................................................................... 4.8 - 5.2 V
3. Check for continuity of the ground circuit, between the harness connector terminal 3 and ground.
Continuity: ............................................................................................................................................................................................ Should exist
5. Check for continuity between ECM harness connector terminals 5, 18 and 61 and ground.
Continuity: ................................................................................................................................................................................... Should NOT exist
