Crankshaft Position Sensor: Testing and Inspection

CKP Pattern Clear/Learn Procedure (with the HDS)





1. Connect the HDS to the data link connector (DLC) (A) located under the driver's side of the dashboard.

2. Turn the ignition switch ON (II).

3. Make sure the HDS communicates with the PCM. If it doesn't, go to the DLC circuit troubleshooting.

4. Select CRANK PATTERN in the ADJUSTMENT MENU with the HDS.

5. Select CRANK PATTERN LEARNING with the HDS, and follow the screen prompts.

6. The CKP pattern learn procedure is complete.


CKP Pattern Clear/Learn Procedure (without the HDS)

1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.

2. Test-drive the vehicle on a level road: Decelerate (with the throttle fully closed) from an engine speed of 2,500 rpm down to 1,000 rpm with the transmission in 2 position.

3. Test-drive the vehicle on a level road: Decelerate (with the throttle fully closed) from an engine speed of 5,000 rpm down to 3,000 rpm with the transmission in 2 position.

4. Repeat step 2 and 3 several times.

5. Turn the ignition switch OFF.

6. Turn the ignition switch ON (II), and wait for 30 seconds.

The CKP pattern learn procedure is complete.