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HINT:

Read freeze frame data using the intelligent tester. Freeze frame data records the engine conditions when a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was running or stopped, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PERFORM ACTIVE TEST USING INTELLIGENT TESTER (OPERATE OCV)

Connect an intelligent tester to the DLC3. Start the engine and turn the tester ON. Warm up the engine.

On the tester, select the following menu items: DIAGNOSIS / ENHANCED OBD II / ACTIVE TEST / VVT CTRL B1.

Check the engine speed while operating the Oil Control

Valve (OCV) using the tester.

Result

Tester Operations

Specified Conditions

OCV OFF

Normal engine speed

OCV ON

Engine idles roughly or stalls (soon after OCV switched from OFF to ON)

CHECK FOR INTERMITTENT PROBLEMS

CHECK FOR INTERMITTENT PROBLEMS

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