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Home >> Infiniti >> 2017 >> QX30 Premium, FWD >> Repair and Diagnosis >> Steering >> Steering Control Systems >> Steering Control System (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> DTC P1644: Control Unit >> DTC Description >> Possible Cause
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Possible Cause

DTC MELCO code Possible cause
P1644-00 50
  • Internal malfunction
  • Vehicle coding miss-setting
P1644-00 72 Inconsistent of setting
P1644-00 73 Inconsistent informations between ECU variant and CAN variant
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