Possible Causes
WARNING: This page is about a different car, the 2003 Toyota MR2. However, it is still accessible from the selected car via links, so may be relevant.
DTC will set when at a vehicle speed of 12 MPH or more, an engine speed of 1000 RPM or more and STA signal ON, battery (+B) voltage is 10.5 volts or more. Possible causes are:
- Defective starter relay.
- Open or short in STA signal circuit.
- Defective ignition switch.
- Defective ECM.