Possible Causes
WARNING: This page is about a different car, the 2003 Infiniti Q45. However, it is still accessible from the selected car via links, so may be relevant.
Malfunction is detected when zero MPH signal is sent to ECM while vehicle is moving. Possible causes are:
- CAN communication line open or shorted.
- Defective VDC/TCS/ABS control unit.
- Defective wheel sensors.
- Defective instrument cluster.
- Vehicle speed sensor circuit is open or shorted.