Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: System Diagram

System Description

SYSTEM DESCRIPTION POWER DOOR LOCK CONTROL SYSTEM DESCRIPTION (a) The power door lock system locks/unlocks all doors. The main body ECU (multiplex network body ECU) receives lock/unlock request signal ...

How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT HINT: Use the following procedure to troubleshoot the power door lock control system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP NEX ...

Other materials:

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 ...

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Immobiliser System: Parts Location
PARTS LOCATION ILLUSTRATION *1 ECM - - ILLUSTRATION *A for Lexus Enform Remote Compatible Type - - *1 ENGINE SWITCH *2 CERTIFICATION ECU (SMART KEY ECU ASSEMBLY) *3 ID CODE BOX (IMMOBILISER CODE ECU) *4 STEERING LOCK ECU (STEERING LOCK ACTUATOR OR UPPER BRA ...