Throttle Position Sensor: Testing and Inspection

THROTTLE POSITION (TP) SENSOR INSPECTION[AJ]

NOTE: Perform the following inspection only when directed.


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[AJ].) Diagnostic Trouble Code Descriptions




2. Connect the M-MDS to the DLC-2.
3. Turn the ignition switch to ON position.
4. Select TP1 or TP2 PID (percentage) on the M-MDS.
5. Verify that the TP1 or TP2 PID is within the specification when the accelerator pedal not depressed. (See PCM INSPECTION[AJ].) Using the M-MDS




6. Operate the accelerator pedal and verity that the TP1 or TP2 PID (percentage) 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.



Circuit Open/Short Inspection
1. Disconnect the PCM connector.
2. Inspect the following harnesses for open or short circuit. (Continuity check)

Open circuit
- Throttle body terminal C and PCM terminal 2A1
- Throttle body terminal D and PCM terminal 2AR
- Throttle body terminal E and PCM terminal 2AN
- Throttle body terminal F and PCM terminal 2AM

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