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 / Audio / Video / Audio And Visual System (for 8 Inch Display) / 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 audio and visual 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 Audio and Visual 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 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 audio and visual system vehicle customization screen. HINT: The main ...

    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 audio and visual system vehicle customization screen. HINT: The main ...

    Other materials:

    Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Navigation System: Mute Signal Circuit between Stereo Component Amplifier and Telematics Transceiver
    DESCRIPTION The DCM (telematics transceiver) sends a mute signal to the stereo component amplifier assembly. The stereo component amplifier assembly controls the volume according to the mute signal from the DCM (telematics transceiver). WIRING DIAGRAM CAUTION / NOTICE / HINT NOTICE: Depending on ...

    Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Audio And Visual System (for 8 Inch Display): GPS Antenna Connection Malfunction(short) (B15C0,B15C1)
    DESCRIPTION These DTCs are stored when a malfunction occurs in the navigation antenna assembly. DTC No. Detection Item DTC Detection Condition Trouble Area B15C0 GPS Antenna Connection Malfunction(short) GPS Antenna Connection Malfunction(short) Navigation antenna assembly An ...

    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
    0.0163