Possible Causes
WARNING: This page is about a different car, the 2003 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
DTC is set when vehicle speed signal is not received at ECM for 16 seconds or more while vehicle is being driven at 12 MPH or more. Possible causes are:
- Defective wiring or connectors.
- Defective HV ECU.
- Defective ECM.