THROTTLE POSITION (TP) SENSOR INSPECTION [ZJ, Z6]

Note

• Before performing the following inspection, make sure to follow the procedure as indicated in the troubleshooting flowchart. (See Troubleshooting Procedure.)

Resistance Inspection

1. Verify the following.

• Throttle valve closed status

• Accelerator cable play (See ACCELERATOR CABLE INSPECTION/ADJUSTMENT [ZJ, Z6])

2. Disconnect the TP sensor connector.

3. Verify that the resistance between terminals B and C changes moderately corresponding to the throttle valve openings.

• If the resistance change is verified, go to the next step.

• If the resistance change is not verified, replace the TP sensor. (See THROTTLE POSITION (TP) SENSOR REMOVAL/INSTALLATION [ZJ, Z6].)

4. Measure the resistance between terminals A and B.

• If not within the specification, replace the TP sensor. (See THROTTLE POSITION (TP) SENSOR REMOVAL/INSTALLATION [ZJ, Z6].)

• If the monitor item condition/specification (reference) is not within the specification, even though there is no malfunction, perform the "Circuit Open/Short Inspection".

TP sensor resistance

2.5-6.0 kilohms [25 °C {77 °F}]

Circuit Open/Short Inspection

1. Remove the PCM connector cover.

2. Disconnect the PCM connector. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [ZJ, Z6].)

3. Inspect the following wiring harness 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.

- TP sensor terminal A and PCM terminal 2W

- TP sensor terminal B and PCM terminal 2AE

- TP sensor terminal C and PCM terminal 2AA

Short circuit

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

- TP sensor terminal A and body GND

- TP sensor terminal B and power supply

- TP sensor terminal C and power supply

- TP sensor terminal C and body GND