Lexus NX manuals

Lexus NX: Software Incompatibility with Cruise Control Module Invalid/Incompatible Software Component (U030557)

Lexus NX Service Manual / Engine & Hybrid System / Cruise Control / Front Radar Sensor System / Software Incompatibility with Cruise Control Module Invalid/Incompatible Software Component (U030557)

DESCRIPTION

The millimeter wave radar sensor assembly receives vehicle information from the forward recognition camera via CAN communication.

If the vehicle information stored in the forward recognition camera differs from that stored in the millimeter wave radar sensor assembly, the millimeter wave radar sensor assembly stores this DTC.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

U030557

Software Incompatibility with Cruise Control Module Invalid/Incompatible Software Component

When the power switch is on (IG), the vehicle information stored in the millimeter wave radar sensor assembly differs from that received from the forward recognition camera
  • Millimeter wave radar sensor assembly
  • Forward recognition camera

CAUTION / NOTICE / HINT

NOTICE:

  • When replacing the millimeter wave radar sensor assembly, always replace it with a new one. If a millimeter wave radar sensor assembly which was installed to another vehicle is used, the information stored in the millimeter wave radar sensor assembly will not match the information from the vehicle and a DTC may be stored.
  • When the millimeter wave radar sensor assembly has been replaced with a new one, it is necessary to perform millimeter wave radar sensor assembly adjustment and front radar acceleration sensor calibration, and to clear the vehicle control history.

    Click here

  • 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 the forward recognition camera 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, forward recognition camera adjustment must be performed.

    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

(a) Check for DTCs.

for Front Radar Sensor: Click here

for Front Recognition Camera: Click here

Body Electrical > Front Radar Sensor > Trouble Codes Chassis > Front Recognition Camera > Trouble Codes

Result

Proceed to

DTC U030557 (Front Radar Sensor) and U032257 (Front Recognition Camera) are output

A

Only DTC U030557 (Front Radar Sensor) is output

B
A

REPLACE FORWARD RECOGNITION CAMERA

B

REPLACE MILLIMETER WAVE RADAR SENSOR ASSEMBLY

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