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Mazda
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2010
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3 L4-2.0L
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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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Manufacturer Code Charts
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DTC 09
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09:ER21
09:ER21
DTC: U3000:09, 09:Er21 [AUDIO]
Detection Condition/Possible Cause:
Diagnostic Procedure
Step 1-Step 2:
