Throttle Actuator Inspection

THROTTLE ACTUATOR INSPECTION

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 the throttle actuator terminals using an ohmmeter.
- If not as specified, replace the throttle body. (See INTAKE AIR SYSTEM REMOVAL/INSTALLATION.)
- If as specified, carry out the "Circuit Open/Short Inspection".

Circuit Open/Short Inspection




1. Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION.)
2. Inspect the following wiring harnesses for open or short circuit (continuity check).




California emission regulation applicable ATX model




Except for California emission regulation applicable ATX model

Open circuit

- If there is no continuity, there is an open circuit. Repair or replace the harness.
- Throttle actuator terminal F and PCM terminal 87*1, 4Y*2
- Throttle actuator terminal E and PCM terminal 88*1, 4AB*2

Short circuit

- If there is continuity, there is a short circuit. Repair or replace the harness.
- Throttle actuator terminal F and power supply
- Throttle actuator terminal F and GND
- Throttle actuator terminal E and power supply
- Throttle actuator terminal E and GND

*1 : California emission regulation applicable ATX model
*2 : Except for California emission regulation applicable ATX model