THROTTLE POSITION (TP) SENSOR INSPECTION [L3 Turbo]

id0140b6802700

Note

• Before performing the following inspection, make sure to follow the procedure as indicated in the troubleshooting flowchart. (See HOW TO USE THIS MANUAL.)

Voltage Inspection

1. Verify that no DTC related to the APP sensor has been detected.

• If any DTCs related to the APP sensor have been detected, perform the DTC inspection.

(SeeDTC TABLE [L3 Turbo].)

2. Start the engine and warm it up (ECT: more than 80°C {176 °F}).

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

4. Verify that the PCM terminal 2AK and 2AL change smoothly while the 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].)

5. Verify that the PCM terminal 2AK and 2AL voltages are as shown in the following table.

acxuuw00000108

• If the voltage is not according to the following table, perform the “Circuit Open/Short Inspection”.

― If there is no open or short circuit, replace the throttle body.

TP sensor output voltage

Condition	PCM terminal 2AK (TP sensor No.1)	PCM terminal 2AL (TP sensor No.2)
Ignition switch ON: APP is released	Approx. 0.95 V	Approx. 4.03 V
Idle (after warm up)	Gradually depress the accelerator pedal while verifying that the voltage changes.

Condition

PCM terminal

2AK

(TP sensor No.1)

PCM terminal

2AL

(TP sensor No.2)

Ignition switch ON: APP is released

Approx. 0.95 V

Approx. 4.03 V

Idle (after warm up)

Gradually depress the accelerator pedal while verifying that the voltage changes.

acxuuw00000109

Circuit Open/Short Inspection

acxuuw00000110

acxuuw00000108

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.

― Throttle body terminal A and PCM terminal 2AK

― Throttle body terminal B and PCM terminal 2AO

― Throttle body terminal C and PCM terminal 2AL

― Throttle body terminal D and PCM terminal 2AP

Short circuit

• If there is continuity, there is a short circuit. Repair or replace the wiring harness.

― Throttle body terminal A and power supply

― Throttle body terminal A and body ground

― Throttle body terminal B and body ground

― Throttle body terminal C and power supply

― Throttle body terminal C and body ground

― Throttle body terminal D and power supply