2016 Fiat 500 Electric Parking Brake Intermittently Sticking On

2016 Fiat 500X Lounge 2.4L Electric Parking Brake intermittently sticking on, making the car undriveable. #DeoxIT 00:00 - intro (new BCM and EBCM installed by other shops) 01:55 - 2016 Fiat 500X Lounge trouble codes C1406-86, C140B-94, C1405-01 04:48 - C140B-94 Flow chart (description and possible causes) 06:15 - C1405-01 Flow chart (description, possible causes and diagnostic tests) 07:09 - testing the electric parking brake switch input on scan data 10:07 - visual inspection of the left rear caliper and electric motor 14:44 - substituting a test light for the "load" in the circuit 19:35 - wiring and driver testing of the LR parking brake motor 22:22 - SUPER IMPORTANT COMMENT on dealing with unfamiliar systems 23:02 - ABS Verification test 24:15 - VERY IMPORTANT some codes will not clear until module goes to sleep 26:40 - rechecking bias voltage on a lab scope 33:00 - swapping harness connectors (left side to right side) 40:00 - using @DeoxIT 42:35 - code clearing procedure (modules need to sleep) 48:35 - what else are we missing?? 51:33 - what did we learn today? (MAKE SURE YOU WATCH THIS!) C1406-86 - Electric Park Brake Signal Fault - Signal Invalid C140B-94 - Incoherent State of EPB (Electric Parking Brake) - Unexpected Operation C1405-01 - Electric Park Brake Motor Left - General Electrical Failure ScannerDanner Tools: https://www.scannerdanner.com/tools.html https://www.amazon.com/shop/scannerdanner For more information on this topic, I have written a “field manual” called Engine Performance Diagnostics which is available at www.scannerdanner.com as an eBook or paper book. Want even more diagnostic training? Whether you are a DIY trying to fix your own car, someone looking to become an auto technician, or a current auto technician that wants to get more into diagnostics, subscribe to ScannerDanner Premium https://www.scannerdanner.com/join-scannerdanner-premium.html There is a 14 day free trial. On ScannerDanner Premium I will bring you right into my classroom at Rosedale Technical College. You will find page for page lectures taken right from my book as well as exclusive classroom type case studies. What is so special about these classroom case studies? I pull live problem vehicles directly into my classroom and we troubleshoot them in real time, using and applying the theory and testing procedures we learn during the classroom lectures. There is no better on-line training of how to troubleshoot automotive electrical and electronics systems anywhere! Disclaimer: Due to factors beyond the control of ScannerDanner LLC, it cannot guarantee against unauthorized modifications of this information, or improper use of this information. ScannerDanner LLC assumes no liability for property damage or injury incurred as a result of any of the information contained in this video. ScannerDanner LLC recommends safe practices when working with power tools, automotive lifts, lifting tools, jack stands, electrical equipment, blunt instruments, chemicals, lubricants, or any other tools or equipment seen or implied in this video. Due to factors beyond the control of ScannerDanner LLC, no information contained in this video shall create any express or implied warranty or guarantee of any particular result. Any injury, damage or loss that may result from improper use of these tools, equipment, or the information contained in this video is the sole responsibility of the user and not ScannerDanner LLC.