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Volkswagen
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2010
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Routan (7B1) V6-4.0L (CGVA)
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Repair and Diagnosis
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A L L Diagnostic Trouble Codes ( DTC )
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Testing and Inspection
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U Code Charts
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U0121
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Wireless Ignition Node
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Lost Communication With Anti-Lock Brake Module
Lost Communication With Anti-Lock Brake Module
U0121 - Lost Communication with Anti-Lock Brake Module
For a complete wiring diagram, refer to.
Refer to => Non-DTC Based Diagnostics.