Throttle Body: Testing and Inspection

THROTTLE BODY INSPECTION[LF, L3]

NOTE: Perform the following inspection only when directed.

Resistance Inspection
1. Disconnect the negative battery cable.
2. Disconnect the throttle body connector.

Specification:

3. Measure the resistance between throttle actuator terminals E and F.
- If not as specified, replace the throttle body.
- 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 actuator terminal F and PCM terminal 2A
- Throttle actuator terminal E and PCM terminal 2B

Short circuit
- If there is continuity, the circuit is shorted. Repair or replace the wiring harness.
- Throttle actuator terminal F and power supply
- Throttle actuator terminal F and ground
- Throttle actuator terminal E and power supply
- Throttle actuator terminal E and ground