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.

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 39*1, 3J*2 and 40*1, 3M*2 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 39*1, 3J*2 and 40*1, 3M*2 voltages are as shown in the table.




California emission regulation applicable ATX Model




Except for California emission regulation applicable ATX Model








- If voltage is not as given in 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 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 (harness-side) and PCM terminal 40*1, 3M*2
- Throttle body terminal B (harness-side) and PCM terminal 35*1, 3N*2
- Throttle body terminal C (harness-side) and PCM terminal 39*1, 3J*2
- Throttle body terminal D (harness-side) and PCM terminal 13*1, 3K*2

Short circuit
- If there is continuity, there is a short circuit. Repair or replace the wiring 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

*1 : California emission regulation applicable ATX model
*2 : Except for California emission regulation applicable ATX model