Crankshaft Position (CKP) Sensor Circuit
- Check CKP sensor installation. Ensure sensor is secure, and that the heat shield and connector are correctly installed. If incorrect spacer is installed sensor will have either a weak signal or hit the reluctor ring. Remove CKP sensor and ensure tip is not bent or damaged. Repair or replace components as necessary.
- Remove "D" plate from transmission bell housing and inspect condition of reluctor ring. Rotate engine and check runout of reluctor ring. If any teeth are bent or reluctor ring does not run true, replace reluctor ring and flywheel. After replacing reluctor ring check CKP sensor wave pattern. See DTC P0335 & P0336: CRANKSHAFT POSITION (CKP) SENSOR MALFUNCTION testing in appropriate SELF-DIAGNOSTICS article. If wave pattern is okay, repair is complete. If wave pattern is not okay, go to next step.
- Check for poor connections or loose wires between CKP sensor and ECM. See WIRING DIAGRAMS . Repair as necessary and recheck wave pattern. If wave pattern is okay, repair is complete. If wave pattern is not okay, go to next step.
- Measure CKP sensor resistance between sensor terminals. Nominal sensor resistance is 1235-1365 ohms. If sensor resistance is not 1000-1600 ohms, replace CKP sensor and recheck CKP sensor wave pattern.