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

id0140a5802700

  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