FixVault

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