Throttle Position (TP) Sensor Inspection

THROTTLE POSITION (TP) SENSOR INSPECTION

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. Diagnostic Trouble Code Descriptions)

2. Turn the ignition switch to ON position (Engine OFF).







3. Verify that the PCM terminal 3M and 3J 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.




4. Verify that the PCM terminal 3M and 3J voltages are as shown in the given table.
- If voltage is not as in given table, perform the "Circuit Open/Short Inspection".
- If there is no open or short circuit, replace the throttle body.

Circuit Open/Short Inspection

1. Disconnect the PCM connector.




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

Open circuit

- If there is no continuity, the circuit is open. Repair or replace the harness.
- Throttle body terminal A (harness-side) and PCM terminal 3M (harness-side)
- Throttle body terminal B (harness-side) and PCM terminal 3N (harness-side)
- Throttle body terminal C (harness-side) and PCM terminal 3J (harness-side)
- Throttle body terminal D (harness-side) and PCM terminal 3K (harness-side)

Short circuit

- If there is continuity, the circuit is shorted. Repair or replace the harness.
- Throttle body terminal A (harness-side) and power supply
- Throttle body terminal A (harness-side) and body GND
- Throttle body terminal B (harness-side) and power supply
- Throttle body terminal B (harness-side) and body GND
- Throttle body terminal C (harness-side) and power supply
- Throttle body terminal C (harness-side) and body GND
- Throttle body terminal D (harness-side) and power supply