Ford P0429 OBD-II Trouble Code Definition: P0429 Catalyst Heater Control Circuit Bank 1 P0429 Ford OBD-II Trouble CodeDescription: OBD Trouble Code P0429 Catalyst Heater Control Circuit What does the code mean? OBD-ii Code P0429 definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk […]