THROTTLE BODY INSPECTION [ZY]

Note

• Perform the following inspection only when directed.

Resistance Inspection

1. Disconnect the negative battery cable.

2. Disconnect the throttle body connector.

3. Measure the resistance between throttle actuator terminals A and B.

• If not as specified, replace the throttle body. (See INTAKE-AIR SYSTEM REMOVAL/INSTALLATION [ZY].)

• If as specified, carry out the "Circuit Open/Short Inspection".

Specification

Ambient temperature (°C {°F})	Resistance (ohm)
Approx. 20 {68}	0.3-100

Circuit Open/Short Inspection

1. Remove the PCM connector cover.

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

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

Open circuit

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

- Throttle body terminal A and PCM terminal 2BF

- Throttle body terminal B and PCM terminal 2BE

Short circuit

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

- Throttle body terminal A and power supply

- Throttle body terminal A and ground

- Throttle body terminal B and power supply

- Throttle body terminal B and ground