Crankshaft Position Sensor: Testing and Inspection

CRANKSHAFT POSITION (CKP) SENSOR INSPECTION [MZI-3.7]

NOTE:
- Before performing the following inspection, make sure to follow the procedure as indicated in the troubleshooting flowchart. Description and Operation

Visual Inspection

1. Disconnect the negative battery cable. Removal and Replacement

2. Remove the catalytic converter (WU-TWC) (LH) for easier access. Service and Repair

3. Remove the CKP sensor. Service and Repair

4. Verify that there are no metal shavings on the CKP sensor.

- If there is a malfunction, remove any metal shavings that are adhering.

Resistance Inspection

1. Disconnect the negative battery cable. Removal and Replacement

2. Remove the catalytic converter (WU-TWC) (LH) for easier access. Service and Repair

3. Remove the CKP sensor connector. Service and Repair

4. Measure the resistance between CKP sensor terminals A and B.






- If not within the specification, replace the CKP sensor. Service and Repair
- If the monitor item status/specification (reference) is not within the specification, even though the resistance is within the specification, perform the "Circuit Open/Short Inspection".

CKP sensor resistance
- 607-743 ohms

Circuit Open/Short Inspection





1. Disconnect the negative battery cable. Removal and Replacement

2. Disconnect the CKP sensor connector. Service and Repair

3. Disconnect the PCM connector.

4. Inspect the following wiring harness for open or short circuit. (Continuity inspection)

Open circuit

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

- CKP sensor terminal B and PCM terminal 2R
- CKP sensor terminal A and PCM terminal 2V

Short circuit

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

- CKP sensor terminal A and power supply
- CKP sensor terminal A and body ground
- CKP sensor terminal B and power supply
- CKP sensor terminal B and body ground