#
ACCELERATOR PEDAL POSITION (APP) SENSOR INSPECTION [L3 Turbo]

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  Note

  • Perform the following inspection only when directed.

## Voltage Inspection

1. Turn the ignition switch to the ON position (Engine off).

2. Verify that the PCM terminal 2A and 3D change smoothly while throttle valve is gradually opened.

  • If as verified, go to next step.
  • If not as verified, perform the "Circuit Open/Short Inspection".

  - If there is no open or short circuit, replace the throttle body. (See INTAKE AIR SYSTEM REMOVAL/INSTALLATION [L3 Turbo].)

3. Verify that the PCM terminal 2A and 3D voltages are as shown in the following table.

  • If voltage is not as following table, perform the "Circuit Open/Short Inspection".

  - If there is no open or short circuit, replace accelerator pedal. (See ACCELERATOR PEDAL REMOVAL/INSTALLATION [L3 Turbo].)

APP sensor output voltage

Condition | PCM terminal 3D (APP sensor No.1) | PCM terminal 2A (APP sensor No.2)
--- | --- | ---
APP is released | Approx. 1.6 V | Approx. 1.0 V
APP is depressed | Approx. 3.9 V | Approx. 3.4 V

## Circuit Open/Short Inspection

1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION [L3 Turbo].)

2. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)

### Open circuit

  • If there is no continuity, there is an open circuit. Repair or replace the wiring harness.
  - APP sensor terminal A and PCM terminal 2K
  - APP sensor terminal B and PCM terminal 2H
  - APP sensor terminal C and PCM terminal 2A
  - APP sensor terminal D and PCM terminal 3G
  - APP sensor terminal E and PCM terminal 3A
  - APP sensor terminal F and PCM terminal 3D

### Short circuit

  • If there is continuity, there is a short circuit. Repair or replace the wiring harness.
  - APP sensor terminal A and power supply
  - APP sensor terminal A and body ground
  - APP sensor terminal B and power supply
  - APP sensor terminal C and power supply
  - APP sensor terminal C and body ground
  - APP sensor terminal D and power supply
  - APP sensor terminal D and body ground
  - APP sensor terminal E and power supply
  - APP sensor terminal F and power supply
  - APP sensor terminal F and body ground