PROBLEM SYMPTOMS TABLE
HINT:
Symptom | Suspected Area | Link |
---|---|---|
Electric parking brake does not operate | Proceed to "Electric Parking Brake does not Operate" | |
Parking brake indicator light does not illuminate (red) or turn off when parking brake is manually engaged and disengaged | Proceed to "Electric Parking Brake does not Operate" | |
Electric parking brake AUTO function (shift-linked function) does not operate (shift-linked parking brake does not lock or release) | Proceed to "Electric Parking Brake AUTO Function Circuit" | |
Message not displayed on multi-information display when AUTO function set to ON/OFF | Proceed to "Message Not Displayed on Multi-information Display When AUTO Function Set to ON/OFF" | |
Brake warning light (Yellow) remains on | Proceed to "Brake Warning Light (Yellow) Remains On" | |
Electric parking brake switch indicator light on electric parking brake switch (electric parking brake switch assembly) does not illuminate or turn off when lock and release operations are performed | Electric parking brake switch indicator light drive circuit | |
Wire harness or connector (electric parking brake switch (electric parking brake switch assembly) - skid control ECU (brake actuator assembly)) | - | |
Electric parking brake switch (electric parking brake switch assembly) | | |
Skid control ECU (brake actuator assembly) | |
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Rear Power Seat Control System(for Third Row): Back Door Courtesy Switch Circuit
DESCRIPTION Each fold seat control ECU receives back door courtesy light switch input signal to determine the state of the back door and enable or disable the fold and return functions. WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE:
When a fold seat control ECU (RH/LH seat) is replaced, it is ne ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Wireless Door Lock Control System: No Answer-Back
DESCRIPTION In some cases, wireless door lock control functions are normal but the hazard warning light and/or wireless door lock buzzer answer-back function does not operate. In such cases, hazard warning light and wireless door lock buzzer signal outputs from the main body ECU (multiplex network b ...