Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
- Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses and relays related to this system before inspecting the suspected areas below.
| 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) | |
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How To Proceed With Troubleshooting
CAUTION / NOTICE / HINT HINT: *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP
NEXT 2. CUSTOMER PROBLEM ANALYSIS (a) Interview the customer and confir ...
Test Mode Procedure
TEST MODE PROCEDURE REAR BRAKE PAD REPLACEMENT MODE *1 Rear Disc Brake Piston *2 Nut *a The nut moves inward in pad replacement mode HINT: When replacing the rear disc brake pad a ...
Other materials:
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Charging System: Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Charging System DTC No. Detection Item Warning Indicate Memory Note Link P161A87 Lost Communication with Alternator Missing Message Charge warning light comes on DTC stored SAE Code: P161A ...
Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Sfi System: Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION When troubleshooting OBD II (On-Board Diagnostics) vehicles, the Techstream (complying with SAE J1978) must be connected to the DLC3 (Data Link Connector 3) of the vehicle. Various data in the vehicle's ECM (Engine Control Module) can be then read. OBD II regulations re ...
Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual
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Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual
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