What does P0719 Mean? The PCM has detected a fault in the brake switch B circuit. The B circuit denotes the stop lamp circuit which deactivates the transmission torque converter lock-up system and cruise control system. engine code P0719P0719 fixobd P0719dtc P0719obd code P0719obd2 P0719P0719 car codediagnostic code P0719car code P0719check engine code P0719fehlercode P0719P0719 fiatcodigo P0719codigo falla P0719P0719 kody b??dówcodigo de falla P0719 What are the common causes of P0719 ? The most likely cause of a low voltage reading in the torque converter/brake switch B circuit is a defective brake lamp switch, or a blown lamp fuse. There are several other possible causes, however, including: Shorted, corroded, or open wiring Shorted, corroded, or open electrical connectors Blown bulbs Misadjusted brake lamp Faulty bulb sockets Faulty PCM (only in very rare cases) How do you troubleshoot P0719 ? Look at the plug wires to make sure they are not burnt or laying on the exhaust. 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. Now, clear the codes and test-drive the vehicle to see if the code is reset. Searches related to P0719 - Brake Switch Circuit Low Input p0719 brake switch b circuit low p0719 torque converter/brake switch b circuit low p0719 fix torque converter brake switch b circuit malfunction p0719 gmc p0719 chevy code p0719 gmc p0724
