OBD II scan tool (excluding hand-held tester):
WARNING: This page is about a different variant/trim than selected.
- CHECK CAMSHAFT TIMING OIL CONTROL VALVE ASSY (OPERATE OCV)
- Start the engine and warm it up.
- Disconnect the OCV connector.
- Apply battery positive voltage to the terminals of the OCV.
- Check the engine speed.
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
OK: Rough idle or engine stalled.
- 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