Lexus NX: Software Incompatibility with Body Control Module Invalid/Incompatible Software Component (U032257)

Lexus NX Service Manual / Engine & Hybrid System / Cruise Control / Front Camera System / Software Incompatibility with Body Control Module Invalid/Incompatible Software Component (U032257)

DESCRIPTION

The forward recognition camera receives vehicle specification information from the main body ECU (multiplex network body ECU) via the CAN communication line. When the value of the vehicle specification information sent from the main body ECU (multiplex network body ECU) does not match the value stored by the forward recognition camera, the forward recognition camera outputs U032257.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

U032257

Software Incompatibility with Body Control Module Invalid/Incompatible Software Component

The value of the vehicle specification information sent from the main body ECU (multiplex network body ECU) does not match the value stored by the forward recognition camera

  • Front radar sensor system
  • Main body ECU (multiplex network body ECU)
  • Forward recognition camera

CAUTION / NOTICE / HINT

NOTICE:

  • Before replacing the main body ECU (multiplex network body ECU), refer to Registration.
  • When replacing the forward recognition camera, always replace it with a new one. If a forward recognition camera 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.
  • If the forward recognition camera has been replaced with a new one, be sure to perform forward recognition camera adjustment.

    HINT:

    Forward recognition camera adjustment can be performed by using either "One Time Recognition" or "Sequential Recognition".

    One Time Recognition:

    Click here

    Sequential Recognition:

    Click here

PROCEDURE

1.

CHECK FOR DTC (FRONT RADAR SENSOR SYSTEM)

(a) Check the DTCs.

Click here

Body Electrical > Front Radar Sensor > Trouble Codes

OK:

DTC U030557 is not output.

OK

REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)

NG

REPLACE FORWARD RECOGNITION CAMERA

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 Front Radar Sensor System

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PRECAUTION PRECAUTIONS FOR FRONT RADAR SENSOR SYSTEM (a) The millimeter wave radar sensor assembly may not be able to reliably detect the following objects: Pylons made from plastic, etc., glass su

 Parts Location

PARTS LOCATION ILLUSTRATION *1 FORWARD RECOGNITION CAMERA *2 MILLIMETER WAVE RADAR SENSOR ASSEMBLY ILLUSTRATION *1 INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY - ECU-IG NO.2 FUSE *2

SEE MORE:

 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 system by checking the suspec

 Installation

INSTALLATION CAUTION / NOTICE / HINT NOTICE: When the brake pedal is first depressed after replacing the brake pads or pushing back the disc brake piston, DTC C1214 may be output. As there is no malfunction, clear the DTC. While the auxiliary battery is connected, even if the power switch is of

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