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.
2016 Subaru WRX BaseFACTORY OEM SERVICE PROCEDURE
Check Accelerator Pedal Sensor Area (Method With Circuit Tester)
- Remove the glove box. < Ref. to REMOVAL , Glove Box. >
- Turn the ignition switch to ON. (engine OFF)
- Measure the voltage between ECM connector terminals.
- Main sensor side
- Sub sensor side
Accelerator pedal sensor Accelerator pedal Terminal No. Standard Main Not depressed (full closed) 23 (+) and 29 (-) 0.4 - 1.0 V Depressed (full opened) 2.4 - 3.7 V Sub Not depressed (full closed) 31 (+) and 30 (-) 0.3 - 1.1 V Depressed (full opened) 2.3 - 3.8 V - After inspection, install the related parts in the reverse order of removal.
Factory Service Tools
Use the Manual With the Right Hardware
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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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