Lexus RX (RX 350L, RX450h) 2016-2026 Repair Manual: 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 body ECU (multiplex network body ECU) controls the front power seat control system (w/ Memory) related items that are customizable via the multi-display assembly screen.

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.

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PROCEDURE

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

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OK:

CAN communication DTCs are not output.

NG

GO TO CAN COMMUNICATION SYSTEM

OK

(a) Check if the front power seat control system (w/ Memory) is malfunctioning.

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HINT:

Customization may not be possible depending on the malfunction in the front power seat control system (w/ Memory).

OK:

No malfunctions are present in the front power seat control system (w/ Memory).

NG

GO TO FRONT POWER SEAT CONTROL SYSTEM (w/ Memory)

OK

(a) Clear the DTCs.

NEXT

(a) Recheck for DTCs.

A

END

B

REPLACE RADIO RECEIVER ASSEMBLY