Possible Causes
- The powertrain control module has indicated a signal was received with the corresponding validity bit equal to "invalid" or post processing of the signal determines it is invalid
- Other vehicle speed related DTCs
- Brake vacuum system integrity
- Brake pedal switch adjustment
- Brake pedal switch circuit short circuit to ground, short circuit to power, open circuit, high resistance
- Connector is disconnected, connector pin is backed out, connector pin corrosion
- Brake pedal switch failure