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2009
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CX-9 FWD V6-3.7L
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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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C Code Charts
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C1991
C1991
DTC C1991 [DSC/RSC]
Detection Condition/Possible Cause:
Diagnostic procedure
Step 1-Step 3:
