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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On-Vehicle Inspection

ON-VEHICLE INSPECTION

INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSEMBLY

a. Check the operation.




1. Connect the intelligent tester to the DLC3.
2. Turn the ignition switch to ON.
3. Turn the intelligent tester ON.
4. Start the engine and warm it up.
5. Select the menu items: DIAGNOSIS /ENHANCED OBD II / ACTIVE TEST / VVT CTRLB1.




6. Operate the OCV using the intelligent tester, then check the engine speed.

If the operation is not as specified, check the camshaft timing oil control valve, wire harness and ECM.