Diagnosis & Repair
WARNING: This page is about a different car, the 2002 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
- Disconnect CKP sensor harness connector. Measure resistance between CKP sensor connector terminals (component side). Resistance should be 985-1600 ohms with sensor temperature of 14-122°F (-10-50°C) and 1265-1890 ohms with sensor temperature of 122-212°F (50-100°C). If resistance is as specified, go to next step. If resistance is not as specified, replace CKP sensor.
- Check for open or short in wiring between ECM and CKP sensor. See WIRING DIAGRAMS article. If problem does not exist, go to next step. If problem exists, repair wiring as necessary.
- Remove and inspect CKP sensor. Also, inspect signal plate. If problem exists, replace CKP sensor and/or signal plate as necessary. If problem does not exist, replace ECM.