CRANKSHAFT POSITION (CKP) SENSOR INSPECTION[AJ (3.0L Duratec)]

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Note

•  Before performing the following inspection, make sure to follow the procedure as indicated in the troubleshooting flowchart. (See HOW TO USE THIS MANUAL.)

Visual Inspection

1.  Remove the CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION[AJ (3.0L Duratec)].)

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

3.  Install the CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION[AJ (3.0L Duratec)].)

Resistance Inspection

1.  Remove the CKP sensor connector.

2.  Measure the resistance between the CKP sensor terminals.

•  If not within the specification, replace the CKP sensor. (See CRANKSHAFT POSITION (CKP) SENSOR REMOVAL/INSTALLATION[AJ (3.0L Duratec)].)

•  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”.

Circuit Open/Short Inspection

1.  Disconnect the PCM connector. (See PCM REMOVAL/INSTALLATION[AJ (3.0L Duratec)].)

2.  Inspect the following wiring harness for open or short (continuity check).

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Open circuit

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

―  CKP sensor terminal A and PCM terminal 21

―  CKP sensor terminal B and PCM terminal 22

Short circuit

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