Diagnosis & Repair
- Disconnect CKP sensor harness connector. Using ohmmeter, measure resistance between sensor connector terminals. Resistance should be 1630-2740 ohms (cold sensor) or 2065-3225 ohms (hot sensor).
- Replace sensor as needed. If sensor is okay, inspect circuits between ECM and CKP sensor for open or short. See wiring diagram in WIRING DIAGRAMS article. Repair as needed. If both circuits are okay, remove sensor and inspect. Also inspect signal plate. Replace as needed. If both components are okay, replace ECM and retest.