Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Power Back Door System (w/ Outside Door Control Switch): Lost Communication With TCM (U0101,U0122,U0142,U0155,U0327,U1117)
DESCRIPTION These DTCs are stored when a malfunction occurs in the CAN communication system. DTC No. Detection Item DTC Detection Condition Trouble Area U0101 Lost Communication With TCM Communication malfunction detected between multiplex network door ECU and ECM
CAN communica ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Immobiliser System: Short to GND in Immobiliser System Power Source Circuit (B278A)
DESCRIPTION When there is a short to GND in the power supply for the transponder key amplifier of the engine switch, the certification ECU (smart key ECU assembly) stores this DTC. DTC No. Detection Item DTC Detection Condition Trouble Area Note B278A Short to GND in Immobiliser Sys ...