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Electronic Throttle Actuator: Testing and Inspection





THROTTLE BODY INSPECTION [MZI-3.7]

Resistance Inspection

1. Disconnect the negative battery cable. Removal and Replacement

2. Remove the engine cover. Engine Cover Removal/Installation

3. Disconnect the throttle body connector.

4. Measure the resistance between throttle body terminals A and B.






Throttle body resistance
- 1-900 ohms

- If not as specified, replace the throttle body. Service and Repair
- If as specified, carry out the "Circuit Open/Short Inspection".

Circuit Open/Short Inspection

1. Disconnect the PCM connector.

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 2BO
- Throttle body terminal B and PCM terminal 2BR

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

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