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.
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HOMESERVICE MANUALSTOYOTA2005MATRIX XR, FWD, STANDARDREPAIR AND DIAGNOSIS (SINGLE PAGE)ENGINE PERFORMANCEENGINE CONTROL SYSTEM (SFI) (1ZZ-FE (FWD)) - DIAGNOSTICSSFI SYSTEM (1ZZ-FE (FF))DTC P2120, P2122, P2123, P2125, P2127: THROTTLE/PEDAL POSITION SENSOR/SWITCH "D & E" CIRCUIT LOW/HIGH INPUTNOTES
2005 Toyota Matrix XR, FWD, Standard
DTC P2120, P2122, P2123, P2125, P2127: Throttle/Pedal Position Sensor/Switch "D & E" Circuit Low/High Input: Notes
2005 Toyota Matrix XR, FWD, StandardSECTION Notes
DTC P2128 THROTTLE/PEDAL POSITION SENSOR/SWITCH "E" CIRCUIT HIGH INPUT
DTC P2138 THROTTLE/PEDAL POSITION SENSOR/SWITCH "D'V'E" VOLTAGE CORRELATION
HINT:
These DTCs relate to the Accelerator Pedal Position (APP) 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.