Diagnosis & Repair
WARNING: This page is about a different car, the 2002 Lexus ES 300. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect suspect VVT sensor (camshaft position sensor) connector. Measure resistance between VVT sensor terminals. Resistance should be 835-1400 ohms at 14-122°F (-10-50°C), or 1060-1645 ohms at 122-212°F (50-100°C). Replace VVT sensor as necessary. If resistance is as specified, go to next step.
- Check sensor waveform. See step 2 under DIAGNOSIS & Repair .
- Check for open or short circuit in wiring harness between ECM connector and appropriate VVT sensor. See WIRING DIAGRAMS article. Repair as necessary. If wiring harness is okay, inspect VVT sensor installation. Tighten sensor as necessary. If VVT sensor is installed properly, replace ECM and retest.