Technical Car/Motor Issues > Ford Focus III - 20 2.5 No communitcation to ECU from OBD2 port Specialists
Thread Author: colinod Replies: 3
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New Wed 5 Nov 14 12:44 
 Ford Focus III - 20 2.5 No communitcation to ECU from OBD2 port - colinod
I had a problem with my OBD2 port and think someone has swapped around the CAN High and CAN low cables in the port.

The car runs fine with no errors but communication with ECU through OBD port is very erratic, most of the time i have no connection with my code reader so took it to auto electricians and they managed to connect computer after trying for ages

Would these cables being swapped round cause this?

Thanks
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 Messages Author Date
 Ford Focus III - 20 2.5 No communitcat.. new colinod 5 Nov 14 12:44
 Ford Focus III - 20 2.5 No communitcatio.. new carmalade 5 Nov 14 17:36
 Ford Focus III - 20 2.5 No communitcati.. new colinod 6 Nov 14 09:02
 Ford Focus III - 20 2.5 No communitcat.. new carmalade 6 Nov 14 18:40
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