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Electronic Throttle Actuator: Testing and Inspection




THROTTLE BODY INSPECTION [13B-MSP]

Resistance Inspection

1. Remove the throttle body. Intake-Air System Removal/Installation

2. Verify that there is no continuity between the throttle body and throttle body each terminal.

- If not as specified, replace the throttle body. Intake-Air System Removal/Installation





3. Measure the resistance between the throttle actuator terminals.

- If not as specified, replace the throttle body. Intake-Air System Removal/Installation
- If as specified, carry out the "Circuit Open/Short Inspection".

Throttle valve actuator resistance









Circuit Open/Short Inspection

1. Disconnect the PCM connector. Service and Repair

2. Inspect the following wiring harnesses for open or short (continuity check).






Open circuit

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

- Throttle body terminal A and PCM terminal 2A
- Throttle body terminal B and PCM terminal 2B

Short circuit

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

- Throttle body terminal A and power supply
- Throttle body terminal A and body GND
- Throttle body terminal B and power supply
- Throttle body terminal B and body GND

Throttle Valve Inspection

1. Remove the throttle body. Intake-Air System Removal/Installation

2. Open the throttle valve from the closed position to open the fully position by hand.

3. Verify that the throttle valve moves smoothly.

- If cannot be verified, replace the throttle body. Intake-Air System Removal/Installation

4. Release hand from the throttle valve when at the fully open position.

5. Verify that the throttle valve returns to the closed position smoothly by spring force.

- If cannot be verified, replace the throttle body. Intake-Air System Removal/Installation

6. Press the throttle valve from the closed position to the fully closed position by hand.

7. Verify that the throttle valve move approx. 5°.

- If cannot be verified, replace the throttle body. Intake-Air System Removal/Installation

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