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.
Circuit Description
The powertrain control module (PCM) controls the throttle valve by applying a varying voltage to the throttle actuator control motor. The PCM monitors the actual throttle valve position using throttle position (TP) sensor 1 and 2. The PCM commands the throttle closed after the ignition is switched to the ON position. If the PCM detects that the throttle position angle is not within a specified range, after the ignition is switched ON, or during the throttle learn procedure, or the minimum throttle position is not learned, this DTC sets.
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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.