Hand-held tester:
WARNING: This page is about a different variant/trim than selected.
- PERFORM ACTIVE TEST USING HAND-HELD TESTER (OCV OPERATION)
- Start the engine and warm it up.
- Connect the hand-held tester to the DLC3.
- Turn ON the ignition switch. Push the hand-held tester main switch.
- Enter the following menus: DIAGNOSIS/ENHANCED OBD II/ACTIVE TEST/VVT CTRL B1.
- Using the hand-held tester, operate the OCV and check the engine speed.
Standard:
TESTER OPERATION & AND CONDITION SPECIFICATIONSTester Operation Specified Condition OCV is OFF Normal engine speed OCV is ON Rough idle or engine stall
- OK: CHECK FOR INTERMITTENT PROBLEMS (See CHECK FOR INTERMITTENT PROBLEMS )
- NG: GO TO NEXT STEP.
- INSPECT CAMSHAFT TIMING OIL CONTROL VALVE ASSY (OCV) (See INSPECTION
)
OK: OCV has no contamination and moves smoothly.
- NG: REPLACE CAMSHAFT TIMING OIL CONTROL VALVE ASSY
- OK: GO TO NEXT STEP.
- CHECK ECM (OCV SIGNAL)
- During idling, check the waveform of the ECM connector using an oscilloscope.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Standard:
TESTER CONNECTION & AND CONDITION SPECIFICATIONSTester Connection Specified Condition E9-16 (OC1+) - E9-15 (OC1-) Correct waveform is as shown
- NG: REPLACE ECM (See REPLACEMENT )
- OK: GO TO NEXT STEP.
- During idling, check the waveform of the ECM connector using an oscilloscope.
- CHECK WIRE HARNESS (OCV - ECM)
- Disconnect the C2 OCV connector.
- Disconnect the E9 ECM connector.
- Measure the resistance of the wire harness side connectors.
Standard:
TESTER CONNECTION & AND CONDITION SPECIFICATIONSTester Connection Specified Condition C2-1 (OCV)- E9-16 (OC1+) C2-2 (OCV)- E9-15 (OC1-) Below 1 Ω C2-1 C2-2 (OCV) or E9-16 (OC1+) - Body ground (OCV) or E9-15 (OC1-) - Body ground 10 kΩ or higher
- NG: REPAIR OR REPLACE HARNESS AND CONNECTOR
- OK: CHECK FOR INTERMITTENT PROBLEMS