CRANKSHAFT POSITION (CKP) SENSOR INSPECTION [LF, L5]

Visual inspection

1. Remove the battery cover. Removal and Replacement

2. Disconnect the negative battery cable.

3. Remove the under cover.

4. Remove the splash shield (RH).

5. Disconnect the CKP sensor connector.

6. Remove the CKP sensor. Service and Repair

7. Verify that there are no metal shavings on the sensor.

- Remove any metal shavings that are adhering.

Air Gap Inspection

1. Verify that the CKP sensor is securely installed.

2. Using a thickness gauge, measure the air gap between the plate projections at the back of crankshaft pulley and the CKP sensor.

- If not within the specification, inspect the plate projections for cracks or bending.

- If there is any malfunction, replace the crankshaft pulley. Service and Repair

CKP sensor air gap
- 0.5-1.5 mm {0.02-0.05 in}

Voltage Inspection

1. Idle the engine.

2. Measure the CKP sensor output wave pattern using an oscilloscope. (See Component Tests and General Diagnostics)

- If not within the specification, replace the CKP sensor. Service and Repair

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Crankshaft Position Sensor: Testing and Inspection

Use the Manual With the Right Hardware

When to See a Mechanic

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