Mazda CX-5 Service & Repair Manual: Accelerator Pedal Position (App) Sensor

Mazda CX-5 Service & Repair Manual / Engine / Control / Accelerator Pedal Position (App) Sensor

Purpose/Function

Detects the accelerator pedal depression amount as basic information for mainly determining the throttle valve opening.
Detects the accelerator pedal depression amount and inputs it to the PCM as an accelerator pedal opening angle signal.

Construction

Built into the accelerator pedal.
A hall element has been adopted as the detecting element for detecting the accelerator pedal depression amount.

Operation

Inputs the signal, which fluctuates according to the throttle valve opening/closing, to the PCM.

APP sensor characteristic

Fail-safe


DTC No.	Fail-safe function
P2122:00	Regulates the upper limit of the APP sensor output.
P2123:00	Regulates the upper limit of the APP sensor output.
P2127:00	Regulates the upper limit of the APP sensor output.
P2128:00	Regulates the upper limit of the APP sensor output.
P2138:00	Restricts the upper limit of the engine speed. Stops the drive-by-wire control (throttle valve is open at approx. 8° by return spring force).

Accelerator Pedal Position (App) Sensor Inspection

Voltage Inspection NOTE: Because the APP sensor is integrated in the accelerator pedal, replacing the APP sensor includes replacement of the accelerator pedal. 1. Connect the M-MDS t ...

Air Fuel Ratio (A/F) Sensor Heater Control

Outline Based on the control of the A/F sensor heater, a stabilized oxygen concentration is detected even at low exhaust temperatures, and feedback control of fuel injection even at cold ...

Other materials:

Engine Coolant Leakage Inspection
WARNING: Never remove the cooling system cap or loosen the radiator drain plug while the engine is running, or when the engine and radiator are hot. Scalding engine coolant and steam may shoot out and cause serious injury. It may also damage the engine and cooling system. Tu ...

Mass Air Flow (MAF) Sensor Inspection
Visual Inspection 1. Remove the MAF sensor/IAT sensor No.1.. 2. Visually inspect the MAF sensor for the following: Damage, cracks, soiling Rusted sensor terminal Bent sensor terminal If there is any malfunction, repair or replace the MAF sensor/IAT sensor ...

High Clutch [Fw6 A EL, Fw6 Ax EL]
Purpose/Function The high clutch operates in 4GR, 5GR, and 6GR and intermittently operates the rear carrier by drive force from the turbine shaft. For the high clutch, a centrifugal balance clutch has been adopted to prevent clutch drag and to assure stabilized piston thrust in ...