2009 Infiniti FX50 Repair and Maintenance
A guide to problems, costs, maintenance and repair for your 2009 Infiniti FX50
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2009 Infiniti FX50 ProblemsCheck Engine Light With Code P0603
A weak battery may result in illumination of the Check Engine Light with fault code P0603 stored.
All wheel drive vehicles with a 7 speed automatic transmission may experience a harsh downshift from 4th to 3rd gear on deceleration. Our technicians tell us that revised control module software is available to correct this concern.