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Mazda
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2009
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3 L4-2.3L
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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 21:ER19
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Radio
Radio
NO.5 CANNOT PRESET (PRESET FUNCTION DOES NOT OPERATE) [RADIO]
Possible Cause:
Diagnostic procedure
Step 1-Step 3: