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Home › Infiniti › 2017 › QX30 Base › Repair and Diagnosis › Steering › Steering Control Systems › Steering Control System (DTC/Circuit Diagnosis) › DTC/Circuit Diagnosis › DTC P1644: Control Unit › DTC Description › Possible Cause

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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