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 ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Blind Spot Monitor Sensor: Components
    COMPONENTS ILLUSTRATION *1 BLIND SPOT MONITOR SENSOR LH *2 BLIND SPOT MONITOR SENSOR RH N*m (kgf*cm, ft.*lbf): Specified torque - - ...

    Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual > Brake System (other): Brake Line
    PrecautionPRECAUTION TROUBLESHOOTING PRECAUTION NOTICE: Since the brake lines are critical safety related parts, be sure to disassemble and inspect the components if a brake fluid leak is found. If any abnormalities are found, replace the component with a new one. When removing brake components ...

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

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

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