Ford Fiesta 2006 - No comms with ABS - Fixed #Archived Message
Posted by Raymond Ferreday on September 11, 2010, 1:46 pm
Hi I have this ford fiesta duratec 2006 with a abs fault. No Speedo and the center led screen only showing dashes Abs, engine and brake warning light on with codes in the engine ecu B0121 lost comms with abs unit Instrument panel Again U 0121, U 2197 engine speed, U2200 odometer value Gem unit B 1342 control unit defective. I have no comms with abs unit, sent abs unit away for testing and was told it was faulty and was repaired but the same symptoms still there sent abs away again for retest but came back as ok. Checked wiring under bonnet area and found nothing wrong, I could do with a wiring diagram mainly on the can system I believe blue and gray are the abs unit can wires, do they go back to the fuse box under the glove box, then out to the dash and engine ecus on separate can wires, was told the abs unit fault was common by ford and was caused by a faulty abs unit but it took them all of 15 mins to plug in and test the system. Ray