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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 P0635: Control Unit >> DTC Description >> Possible Cause
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Possible Cause

DTC MELCO code Possible cause
P0635-06 All Internal malfunction
P0635-09 All Internal malfunction
P0635-43 55 Internal malfunction
P0635-45 A2 Internal malfunction
P0635-49 52 Motor relay conduction check
P0635-98 71 It's not a failure but normal state of EPS system. Power provided by motor is limited