Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: How To Proceed With Troubleshooting

CAUTION / NOTICE / HINT

HINT:

Use these procedures to troubleshoot the heated steering wheel system.

PROCEDURE

1.

VEHICLE BROUGHT TO WORKSHOP

NEXT

2.

INSPECT BATTERY VOLTAGE

Standard Voltage:

11 to 14 V

If the voltage is below 11 V, recharge or replace the battery before proceeding to the next step.

NEXT

3.

PROBLEM SYMPTOMS TABLE

Result

Proceed to

Fault is not listed in problem symptoms table.

A

Fault is listed in problem symptoms table.

B

B

GO TO STEP 5

A

4.

OVERALL ANALYSIS AND TROUBLESHOOTING

(a) Terminals of ECU

Click here

NEXT

5.

REPAIR OR REPLACE

NEXT

6.

CONFIRMATION TEST

NEXT

END

    Fail-safe Chart
    FAIL-SAFE CHART MALFUNCTION DETECTION (a) Operation when malfunction is detected Content Operation Heater failure Overcurrent detection of drive element Heater output off Overheating ...

    Parts Location
    PARTS LOCATION ILLUSTRATION *1 SPIRAL CABLE SUB-ASSEMBLY *2 STEERING HEATER SWITCH (INTEGRATION CONTROL AND PANEL ASSEMBLY) *3 STEERING WHEEL ASSEMBLY - STEERING WHEEL HEATER UNIT *4 ...

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    ComponentsCOMPONENTS ILLUSTRATION *1 REAR AXLE HUB BOLT *2 REAR DISC *3 REAR DISC BRAKE CALIPER ASSEMBLY *4 REAR FLEXIBLE HOSE *5 NO. 2 PARKING BRAKE WIRE ASSEMBLY - - Tightening torque for "Major areas involving basic vehicle performance such as moving/turning/s ...

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Audio And Visual System (for 12.3 Inch Display): MOST Communication Malfunction (B15D0)
    DESCRIPTION Audio and visual system components communicate with each other via MOST communication. If a line short or short to ground occurs in a MOST communication line, communication will not be possible and the audio and visual system will not operate normally. After the engine switch is turned o ...

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

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

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