Lexus RX (RX 350L, RX450h) 2016-2024 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

Tight-corner braking phenomenon*

4WD linear solenoid circuit

Steering sensor circuit

Vehicle stability control system

4WD ECU assembly

Electro magnetic control coupling sub-assembly

AWD warning message remains displayed

AWD warning light circuit (Remains illuminated)

AWD warning message is not displayed

AWD warning light circuit (Does not illuminate)

AWD lock function does not operate

AWD lock mode switch circuit

4WD ECU assembly

AWD lock mode indicator light does not illuminate

CAN communication system

AWD lock mode switch circuit

Combination meter assembly

4WD ECU assembly

  • *: Tight corner braking phenomenon: a phenomenon in which an AWD vehicle may lurch and decelerate due to a rotational speed difference between the front and rear wheels, such as during low-speed cornering in AWD mode.
    How To Proceed With Troubleshooting
    CAUTION / NOTICE / HINT HINT: Use the following procedure listed to troubleshoot the Dynamic Torque Control AWD system. *: Use the Techstream. PROCEDURE 1. VEHICLE BROUGHT TO WORKSHOP ...

    Diagnosis System
    DIAGNOSIS SYSTEM DESCRIPTION Dynamic torque control AWD system data and Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be ...

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    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

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