Possible Causes
WARNING: This page is about a different car, the 2002 Nissan Xterra and 2002 Nissan Frontier. However, it is still accessible from the selected car via links, so may be relevant.
Malfunction is detected when ECM receives an excessively low or high voltage from knock sensor. Possible causes are:
- Knock sensor circuit open or shorted.
- Defective knock sensor.