What does P0703 Mean? OBD-II Code P0703 is defined as a Brake Switch "B" Circuit The Brake Switch tells the engine control module (PCM) that the brake pedal is depressed. This switch also controls the brake lights. If the PCM detects an implausible signal from the Brake Switch, the PCM will set code P0703. engine code P0703P0703 fixobd P0703dtc P0703obd code P0703obd2 P0703P0703 car codediagnostic code P0703car code P0703check engine code P0703fehlercode P0703P0703 fiatcodigo P0703codigo falla P0703P0703 kody b??dówcodigo de falla P0703 What are the common causes of P0703 ? Commonly, this code is due to a failed or misadjusted brake lamp switch or blown fuse in the stop lamp circuit. Faulty brake bulb sockets, blown bulbs or shorted, open or corroded wiring/connectors can cause this fault code as well. How do you troubleshoot P0703 ? Look for rubbing, scraping, bare wires, worn spots or melted plastic connectors. Pull the connectors apart and carefully look at the terminals (the metal parts) inside the connectors. With the valve disconnected, the red voltmeter lead should be attached to the IMRC valve power wire and the black voltmeter lead connected to ground. Searches related to P0703 - Brake Switch Performance p0703 brake switch b circuit p0703 boo switch circuit fault p0703 chrysler torque converter brake switch p0703 ford f250 p0703 ford f150 brake switch code p0703 mercedes
