U0001 - High Speed CAN Communication BUS Intermittent; U0101 - Lost Communication With TCM Permanent; P0106 - Manifold Absolute Pressure /Baro Sensor Range Performance Intermittent ... Hi, Hoping you can help. U1900 FORD Description The Anti-ock Brakes System (ABS) module, the Powertrain Control Module (), and the instrument cluster communicate over the Controller Area Network (CAN) Bus.This is a high-speed bus communication system and is not fault tolerant, which means any type of intermittent/loose connection between these 3 controllers will cause communication to stop. Tagged Ford U0001 , U0001 , U0001 Ford Code Description U0001 High Speed CAN Communication Bus U0002 High Speed CAN Communication Bus Performance U0003 High Speed CAN Communication Bus (+) Open U0004 High Speed CAN Communication Bus (+) Low U0005 High Speed CAN Communication Bus (+) High U0006 High Speed CAN Communication Bus (-) Open U0007 High Speed CAN Communication Bus (-) Low U0008 High Speed CAN Communication When a Ford Focus is having trouble starting or does not start at all, this could be due to the failure of the dashboard instrument cluster. The data bus wires are designated: Bus + …circuit # 914….and is found on Pin 2 of the DLC. Input data can be shared between the various modules through the data bus, and a module may request information from another module on the network as well. The information screen on my ford focus 2009 has gone blank but still has the orange backlight. It is a very common failure on the Ford Focus, it tends to cause an intermittent failure of lights and gauges. U0001 - High Speed CAN Communication Bus [Confirmed - malfunction is confirmed] BCMii B10A2 - Crash Input [General Signal Failure] B10E7 - Ignition On Relay [Circuit Short To Battery] B10E7 - Ignition On Relay [Circuit Short To Ground Or Open] U0131 - Lost Communication With Power Steering Control Module A Without this CAN bus, control modules cannot exchange information, and your scan tool may not be able to get information from the vehicle, depending on which circuit is affected. I didn’t see anything but see the description on the machine as high speed CAN communication bus. I would like to thank Mr. Carnahan for his well written article posted 3/15/15, “Ford Communication U-Codes Caused by Faulty Ignition System” I can honestly say that I wish his services were available near where I reside. U0001 Ford High Speed Controller Area Network (CAN) Communication Bus ... 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