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Saab
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2009
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9-5 (9600) 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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P Code Charts
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P0420
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Diagnostic Procedures
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Diagnostic Procedure
Diagnostic Procedure
Diagnostic Procedure
Rectify as described in the diagnostic procedure for the relevant diagnostic trouble code.