KNOCK SENSOR INSPECTION

Note

• Perform the following inspection according to the DATA MONITOR function (indicated by monitor item from here onwards).

Resistance Inspection

1. Disconnect the negative battery cable.

2. Disconnect the knock sensor connector.

3. Measure the resistance between the terminal and the body ground.

• If not within the specification, replace the knock sensor.

• If the monitor item condition/specification (reference) is not within the specification, even though the resistance is within the specification, carry out the "Circuit Open/Short Inspection".

Approx. 560 kilohms

Circuit Open/Short Inspection

1. Inspect the following wiring harnesses for an open or short circuit. (Continuity check)

Open circuit

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

- Knock sensor and PCM terminal 2BA

Short circuit

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

- Knock sensor and body GND

- Knock sensor and power supply