ACCELERATOR PEDAL POSITION (APP) SENSOR INSPECTION[L3]

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Note

• Perform the following inspection only when directed.

Voltage Inspection

1. Turn the ignition key to ON position (Engine OFF).

2. Verify that the PCM terminal 1Y and 1AG 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.

3. Verify that the PCM terminal 1Y and 1AG voltages are as shown in the following table.

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• 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].)

APP sensor output voltage

Condition	PCM terminal 1Y (APP sensor No.1)	PCM terminal 1AG (APP sensor No.2)
Accelerator pedal released	Approx. 1.58 V	Approx. 1.03 V
Accelerator pedal depressed	Approx. 3.90 V	Approx. 3.35 V

Condition

PCM terminal 1Y

(APP sensor No.1)

PCM terminal 1AG

(APP sensor No.2)

Accelerator pedal released

Approx. 1.58 V

Approx. 1.03 V

Accelerator pedal depressed

Approx. 3.90 V

Approx. 3.35 V

Circuit Open/Short Inspection

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

2. Inspect the following wiring harnesses for 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 1AK

― APP sensor terminal B and PCM terminal 1AA

― APP sensor terminal C and PCM terminal 1AG

― APP sensor terminal D and PCM terminal 1AW

― APP sensor terminal E and PCM terminal 1I

― APP sensor terminal F and PCM terminal 1Y

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