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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 U0401: Engine System >> DTC Description >> DTC Detection Logic
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DTC Detection Logic

DTC CONSULT screen terms MELCO code DTC detection condition
(Trouble diagnosis content) [Malfunction type]
U0401 86 Communication error (invalid)
[Communication error (invalid)]		 [SIGNAL INVALID] 23, 66 Diagnosis condition Ignition switch ON
Signal (terminal) CAN communication signal
Threshold Control unit receive the invalid data from ECM
Diagnosis delay time 0.1 second
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