THROTTLE POSITION (TP) SENSOR INSPECTION [L8, LF, L3]

Note

• Perform the following inspection only when directed.

Voltage Inspection

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

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

(See DTC TABLE [L8, LF, L3].)

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

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

4. Verify that the PCM terminal 2AK and 2AL 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.

5. Verify that the PCM terminal 2AK and 2AL 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 the throttle body.

TP sensor output voltage

Condition	PCM terminal 2AK (TP sensor No.1)	PCM terminal 2AL (TP sensor No.2)
APP is released	0.4-0.6 V	4.4-4.6 V
APP is depressed	4.4-4.7 V	0.3-0.6 V

Circuit Open/Short Inspection

1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION [L8, LF, 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.

- 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 power supply

- 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