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 (APP) and Throttle Position (TP) Sensor Inputs
Accelerator Pedal Position (APP) Sensor Check
| DTCs (1) | Description (Indicator Lamp) | ||
|---|---|---|---|
| P1575 | APP sensor out of self-test range | ||
| P2122, P2123, P2127, P2128 | APP sensor circuit continuity test (powertrain malfunction indicator [wrench], non-MIL) | ||
| P2138 | APP to APP signal correlation (powertrain malfunction indicator [wrench], non-MIL) | ||
|
|||
Monitor execution is continuous. Monitor false detection duration is less than 1 second to register a concern. Refer to DIAGNOSTIC TROUBLE CODE (DTC) CHARTS AND DESCRIPTIONS for additional DTC information.
Throttle Position (TP) Sensor Check
| DTCs (1) | Description (Indicator Lamp) | ||
|---|---|---|---|
| P0122, P0123, P0222, P0223 | TP circuit continuity test (MIL, powertrain malfunction indicator [wrench]) | ||
| P2135 | TP to TP sensor correlation test (powertrain malfunction indicator [wrench], non-MIL) | ||
|
|||
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.