Lancer LS L4-2.0L SOHC (2002)
Throttle Position Sensor: Testing and Inspection
THROTTLE POSITION SENSOR CHECK
Required Special Tool:
-
MB991709: Test Harness Set
Checking the Terminal Resistance
1. Disconnect the throttle position sensor connector.
2. Measure resistance between the throttle position sensor side connector terminal 2 and terminal 3.
Standard value: 2.0 - 4.0 kohm
3. Measure resistance between the throttle position sensor side connector terminal 1 and terminal 2.
4. If resistance is outside the standard value, or if it doesn't change smoothly, replace the throttle position sensor.
NOTE: After replacement, the throttle position sensor should be adjusted.
Check using oscilloscope
1. Disconnect the throttle position sensor connector and connect the test harness special tool (MB991709) in between. (All terminals should be
connected.)
2. Connect the oscilloscope probe to the throttle position sensor side connector terminal 1.
3. Turn the ignition switch "ON" position.
