Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual: Internal Control Module Software Incompatibility Invalid / Incompatible Software Component (U030057)

Lexus RX (RX 350L, RX450h) 2016-2024 Repair Manual / Engine & Hybrid System / Cruise Control / Front Camera System / Internal Control Module Software Incompatibility Invalid / Incompatible Software Component (U030057)

DESCRIPTION

The forward recognition camera receives the vehicle information from the ECM via CAN communication.

DTC U030057 is stored when the vehicle information from the ECM and that stored in the forward recognition camera do not match.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

U030057

Internal Control Module Software Incompatibility Invalid / Incompatible Software Component

The vehicle information from the ECM and that stored in the forward recognition camera do not match.
  • SFI system
  • Forward recognition camera
  • ECM

CAUTION / NOTICE / HINT

NOTICE:

  • Before replacing the ECM, refer to Registration.

    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. As a result, 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 DTCs

(a) Check for DTCs of SFI system.

Powertrain > Engine > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTCs are output

B
B

GO TO SFI SYSTEM

A

2.

CHECK FOR DTCs (HEALTH CHECK)

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG)

(c) Turn the Techstream on.

(d) Enter the following menus: System Select / Health Check.

(e) Check for DTCs.

(f) Turn the engine switch off.

OK:

DTCs indicating a vehicle information mismatch with that of the ECM are not output by any ECU other than the forward recognition camera.

NG

REPLACE ECM

OK

3.

READ VALUE USING TECHSTREAM

(a) Connect the Techstream to the DLC3.

(b) Turn the engine switch on (IG)

(c) Turn the Techstream on.

(d) Enter the following menus: Chassis / Front Recognition Camera / Data List.

(e) Read the Data List according to the display on the Techstream.

Chassis > Front Recognition Camera > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

HV Equipped Information

Vehicle information (conventional/hybrid) stored in forward recognition camera

Non-HV / HV

Non-HV: Conventional vehicle

HV: Hybrid vehicle

-
Chassis > Front Recognition Camera > Data List

Tester Display

HV Equipped Information

HINT:

  • If the vehicle information stored in the forward recognition camera is different from the actual vehicle specifications, the vehicle information stored in the forward recognition camera may be incorrect. Replace the forward recognition camera.
  • If the vehicle information stored in the forward recognition camera matches the actual vehicle specifications, the installed ECM is incompatible. Replace the ECM.

Result

Proceed to

Vehicle information stored in forward recognition camera and actual vehicle specifications do not match

A

Vehicle information stored in forward recognition camera and actual vehicle specifications match

B
A

REPLACE FORWARD RECOGNITION CAMERA

B

REPLACE ECM

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