Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Accelerator Pedal Position Sensor: Testing and Inspection
2005 Mitsubishi Lancer L4-2.4L SOHCSECTION Testing and Inspection
ACCELERATOR PEDAL POSITION SENSOR CHECK
1. Disconnect the accelerator pedal position sensor connector.
2. Measure the resistance between accelerator pedal position sensor connector terminal No.1 [accelerator pedal position sensor (main) earth] and terminal No.2 [accelerator pedal position sensor (main) power supply] and between terminal No.7 [accelerator pedal position sensor (sub) earth] and terminal No.8 [accelerator pedal position sensor (sub) power supply].
Standard value: 3.5 - 6.5 kOhms
3. Measure the resistance between accelerator pedal position sensor connector terminal No.2 [accelerator pedal position sensor (main) power supply] and terminal No.3 [accelerator pedal position sensor (main) output]; and between terminal No.8 [accelerator pedal position sensor (sub) power supply] and terminal No.6 [accelerator pedal position sensor (sub) output].
4. If the measured values are outside the standard value range, or if the resistance does not change smoothly, replace the accelerator pedal position sensor.
NOTE: After replacement, adjust the accelerator pedal position switch and accelerator pedal position sensor.
1. Disconnect the accelerator pedal position sensor connector.
2. Measure the resistance between accelerator pedal position sensor connector terminal No.1 [accelerator pedal position sensor (main) earth] and terminal No.2 [accelerator pedal position sensor (main) power supply] and between terminal No.7 [accelerator pedal position sensor (sub) earth] and terminal No.8 [accelerator pedal position sensor (sub) power supply].
Standard value: 3.5 - 6.5 kOhms
3. Measure the resistance between accelerator pedal position sensor connector terminal No.2 [accelerator pedal position sensor (main) power supply] and terminal No.3 [accelerator pedal position sensor (main) output]; and between terminal No.8 [accelerator pedal position sensor (sub) power supply] and terminal No.6 [accelerator pedal position sensor (sub) output].
4. If the measured values are outside the standard value range, or if the resistance does not change smoothly, replace the accelerator pedal position sensor.
NOTE: After replacement, adjust the accelerator pedal position switch and accelerator pedal position sensor.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.