Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual: Certification ECU Vehicle Information Reading/Writing Process Malfunction (B15F7)

Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual / Audio & Visual & Telematics / Navigation / Multi Info Display / Navigation System / Certification ECU Vehicle Information Reading/Writing Process Malfunction (B15F7)

DESCRIPTION

This DTC is stored when items controlled by the certification ECU (smart key ECU assembly) cannot be customized via the navigation system vehicle customization screen.

HINT:

The certification ECU (smart key ECU assembly) controls the smart access system with push-button start (for Entry Function) related items that are customizable via the multi-display assembly screen.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

B15F7

Certification ECU Vehicle Information Reading/Writing Process Malfunction

Certification ECU (smart key ECU assembly) vehicle setting processing malfunction

  • CAN communication system
  • Smart access system with push-button start (for Entry Function)
  • Radio receiver assembly

CAUTION / NOTICE / HINT

NOTICE:

Depending on the parts that are replaced during vehicle inspection or maintenance, performing initialization, registration or calibration may be needed. Refer to Precaution for Navigation System.

Click here

PROCEDURE

1.

CHECK CAN COMMUNICATION SYSTEM

(a) Use the Techstream to check if the CAN communication system is functioning normally.

Click here

OK:

CAN communication DTCs are not output.

NG

GO TO CAN COMMUNICATION SYSTEM

OK

2.

CHECK SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function)

(a) Check if the smart access system with push-button start (for Entry Function) is malfunctioning.

Click here

HINT:

Customization may not be possible depending on the malfunction in the smart access system with push-button start (for Entry Function).

OK:

No malfunctions are present in the smart access system with push-button start (for Entry Function).

NG

GO TO SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function)

OK

3.

CLEAR DTC

(a) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs
NEXT

4.

CHECK FOR DTC

(a) Recheck for DTCs.

Body Electrical > Navigation System > Trouble Codes

Result

Proceed to

DTCs are not output

A

DTCs are output

B

A

END

B

REPLACE RADIO RECEIVER ASSEMBLY

    Main Body ECU Vehicle Information Reading/Writing Process Malfunction (B15F6)
    DESCRIPTION This DTC is stored when items controlled by the main body ECU (multiplex network body ECU) cannot be customized via the navigation system vehicle customization screen. HINT: The main body ...

    D-Seat ECU Vehicle Information Reading/Writing Process Malfunction (B15F8)
    DESCRIPTION This DTC is stored when items controlled by the main body ECU (multiplex network body ECU) cannot be customized via the navigation system vehicle customization screen. HINT: The main body ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Road Sign Assist System: How To Proceed With Troubleshooting
    CAUTION / NOTICE / HINT HINT: Before performing troubleshooting for the road sign assist system, make sure that the pre-collision system and lane control system are not malfunctioning. Pre-collision system: Click here Lane control system: Click here Perform the following procedure to troubl ...

    Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Intelligent Clearance Sonar System: Operation Check
    OPERATION CHECK ICS OFF INDICATOR LIGHT OPERATION CHECK (a) Turn the engine switch on (IG). (b) Turn the intelligent clearance sonar system off and confirm that the ICS OFF indicator in the combination meter illuminates. HINT: If the intelligent clearance sonar system is not set to off in the custo ...

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

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

    Chevrolet Trax (2013-2022) Owner's Manual

    © 2023 Copyright www.lexusrx.net
    0.015