Possible Causes
WARNING: This page is about a different car, the 2002 Nissan Altima. However, it is still accessible from the selected car via links, so may be relevant.
Malfunction is detected when ECM detects a difference in values between the 2 vehicle speed signals. Possible causes are:
- CAN communication line open or shorted.
- Instrument cluster circuit open or shorted.
- Defective instrument cluster.
- Defective vehicle speed sensor.
- Defective TCM.
- Defective ECM.