DESCRIPTION If the hybrid vehicle control ECU detects a malfunction in the hybrid control system, it outputs a malfunction signal to the driving support ECU assembly via CAN communication and this DTC is stored.
PROCEDURE
HINT: If DTC C1A63 is output by the pre-collision system, perform troubleshooting for the hybrid control system. Click here
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Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Smart Key System(for Start Function, Hv Model): Lost Communication with ECM / PCM (U0100,U0140,U0142,U0155,U0293)
DESCRIPTION These DTCs are stored when there is a CAN communication malfunction between the ECM, certification ECU (smart key ECU assembly), hybrid vehicle control ECU, main body ECU (multiplex network body ECU) or combination meter assembly, and data from the option connector (bus buffer ECU) canno ...
