Operation CHARM: Car repair manuals for everyone.
Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

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Crankshaft Position Sensor: Testing and Inspection



CKP Pattern Clear/Learn

NOTE: The ECT needs to be at 176 °F (80 °C) or higher.

1. Clear the CKP pattern with the HDS while the engine is stopped.

2. Turn the ignition switch OFF.

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

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

5. Select CRANK PATTERN LEARNING and follow the procedure showed on the screen.

6. Turn the ignition switch OFF.

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

The CKP learning procedure is completed.