Throttle Position Sensor: Testing and Inspection

THROTTLE POSITION (TP) SENSOR INSPECTION [MZI-3.7]

NOTE:
- Before performing the following inspection, make sure to follow the procedure as indicated in the troubleshooting flowchart. Description and Operation

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. DTC Table Engine Onboard Diagnostics

2. Connect the M-MDS to the DLC-2.






3. Turn the ignition switch to the ON position.

4. Select TP1 or TP2 PID (voltage) on the M-MDS.

5. Operate the accelerator pedal and verify that the TP1 or TP2 PID (voltage) changes as shown in the following graph.






- If not verified, perform the "Circuit Open/Short Inspection".

- If there is no open or short circuit, replace the throttle body. Service and Repair

Circuit Open/Short Inspection





1. Disconnect the PCM connector. Service and Repair

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

Open circuit

- If there is no continuity, there is an open circuit. Repair or replace the wiring harness.

- Throttle body terminal C and PCM terminal 2AD
- Throttle body terminal D and PCM terminal 2D
- Throttle body terminal E and PCM terminal 2AH
- Throttle body terminal F and PCM terminal 2Z

Short circuit

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

- Throttle body terminal C and power supply
- Throttle body terminal C and body ground
- Throttle body terminal D and body ground
- Throttle body terminal E and power supply
- Throttle body terminal F and body ground
- Throttle body terminal F and power supply