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Mazda
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2006
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Mazdaspeed6 L4-2.3L Turbo
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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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U0100
U0100
U0100 - Communication error to PCM
Output module:
DSC HUCM
AWD Control module
Keyless entry module
Procedures For Determining the Location of A Malfunction