Circuit Description
WARNING: This page is about a different car, the 2002 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
The Hybrid Vehicle Electronic Control Unit (HV ECU) delivers a vehicle speed signal to the ECM. 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 electrical connectors.
- Defective HV ECU.
- Defective ECM.