Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: Left Headlight ECU Variation Error (B2456)

NOTICE:

• Before replacing the main body ECU (multiplex network body ECU), refer to Registration.

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• Before replacing the ECM, refer to Registration.

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• If the No. 1 headlight ECU sub-assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the No. 1 headlight ECU sub-assembly LH.

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• If the headlight assembly LH has been replaced, it is necessary to synchronize the vehicle information and initialize the No. 1 headlight ECU sub-assembly LH.*

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• When replacing the No. 1 headlight ECU sub-assembly LH, always replace it with a new one. If a No. 1 headlight ECU sub-assembly LH which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.
• When replacing the headlight assembly LH, always replace it with a new one. If a headlight assembly LH which was installed to another vehicle is used, the information stored in it will not match the information from the vehicle and a DTC may be stored.*
  • *: for TMMC Made

Abnormal Height Sensor Data at Initialization (B2452)

DESCRIPTION The No. 1 headlight ECU sub-assembly LH stores this DTC if the value from the rear height control sensor sub-assembly RH is out of range when performing initialization of the No. 1 headlig ...

Control Module Communication Bus Off (U0073,U0100,U0101,U0126,U0129,U0142,U0155)

DESCRIPTION These DTCs are stored if a CAN communication malfunction occurs between the No. 1 headlight ECU sub-assembly LH and other ECUs. DTC No. Detection Item DTC Detection Condition Trou ...

Other materials:

Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Glove Box Light: Removal
REMOVAL PROCEDURE 1. REMOVE INSTRUMENT PANEL GARNISH RH Click here 2. REMOVE FRONT DOOR SCUFF PLATE RH HINT: Use the same procedure as for the LH side. Click here 3. REMOVE COWL SIDE TRIM BOARD RH HINT: Use the same procedure as for the LH side. Click here 4. REMOVE NO. 2 INSTRUMENT P ...

Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual > Differential System: 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 ...