U0100 - OBD II Trouble Code: Lost Communication with ECM/PCM(01) Save Image Image gallery: 2005 Volkswagen Jetta TDI: U0100 Code, Lost Communication With ECM?
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![U0100 Code: Lost Communication With ECM/PCM 'A' [Fix]](https://i.ytimg.com/vi/hqVfdL6Ny0c/hqdefault.jpg "U0100 Code: Lost Communication With ECM/PCM 'A' [Fix]")
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