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.
2008 Jeep Wrangler 4WD V6-3.8LFACTORY OEM SERVICE PROCEDURE
Accelerator Pedal Position Sensor
Component ID: 273
Component : SENSOR-ACCELERATOR PEDAL POSITION
Connector:
Name : SENSOR-ACCELERATOR PEDAL POSITION
Color : BLACK
# of pins : 6
Pin Circuit Description
1 F855 20PK/YL 5 VOLT SUPPLY
2 K23 20BR/WT APP 1 SIGNAL
3 K167 20BR/YL APP 1 SENSOR GROUND
4 K400 20BR/VT APP 2 SENSOR GROUND
5 K29 20WT/BR APP 2 SIGNAL
6 F852 20YL/PK 5 VOLT SUPPLY
6 F856 20YL/PK 5 VOLT SUPPLY
Factory Service Tools
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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.
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