Check Engine Light - O2 Sensor Heater Circuit Malfunction - Code P0141 This video shows you some common things to look for if you are experiencing a check engine code P0141 - O2 sensor heater circuit malfunction on your car, truck, or SUV. #P0141 #checkenginelight #autorepairshop | 1A Auto Parts

The vehicle being tested is 2010 Jeep Wrangler but the tests shown in the video apply to hall effect type cam, crank and speed sensors. Video Breakdown: Introduction clip :52 - customer complaint (cam sensor fault code P0340) 1:32 - fault code list 3:57 - clearing and re-creating the code 4:30 - know your circuit designs! (ScannerDanner Premium) 5:45 - Snap-on guided component test meter for help with wiring 6:50 - pin voltage tests 7:50 - confirmed signal circuit integrity (engine computer is N