Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Power Door Lock Control System: GSW Terminal Circuit Malfunction (B1243)
DESCRIPTION If the collision door lock release function does not operate normally, or an open or short in the GSW input circuit of the main body ECU (multiplex network body ECU) is detected, DTC B1243 will be stored. HINT: If DTC B1243 is stored, the automatic door lock function, and collision door ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Can Communication System: Lost Communication with Gateway Module (Main Body ECU) (U1002)
DESCRIPTION
The main body ECU (multiplex network body ECU) will store this DTC when no signals can be received from the ECUs that have been memorized as those that are connected to sub bus 1.
When the main body ECU (multiplex network body ECU) receives a response signal from the ECUs connected ...