Lexus ES: Display Malfunction (B15A6,B15B0)

Lexus ES (XZ10) Service Manual / Audio & Visual & Telematics / Navigation / Multi Info Display / Navigation System (for Gasoline Model) / Display Malfunction (B15A6,B15B0)

DESCRIPTION

These DTCs are stored when a malfunction occurs in the multi-display assembly.

DTC No.	Detection Item	DTC Detection Condition	Trouble Area
B15A6	Display Malfunction	When any of the following conditions is met: RAM error Drawing controller malfunction Internal hard drive malfunction	Multi-display assembly
B15B0	Display Screen Malfunction	Picture circuit (TFT unit) malfunction	Multi-display assembly

PROCEDURE

CHECK DTC

(a) Clear the DTCs.

Body Electrical > Navigation System > Clear DTCs

(b) Recheck for DTCs and check that no DTCs are output.

Body Electrical > Navigation System > Trouble Codes

OK:

No DTCs are output.

USE SIMULATION METHOD TO CHECK

REPLACE MULTI-DISPLAY ASSEMBLY

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Components

COMPONENTS ILLUSTRATION *A w/ Power Trunk Lid System - - *1 LUGGAGE COMPARTMENT DOOR ASSIST GRIP *2 LUGGAGE COMPARTMENT DOOR COVER *3 LUGGAGE LOCK CONTROL CABLE PLATE *4 SWITCH BEZEL ILLUSTRATION *1 LUGGAGE COMPARTMENT DOOR HINGE COVER LH *2 LUGGAGE COMPART

Check Bus 3 Line for Short to +B

DESCRIPTION There may be a short circuit between one of the CAN bus lines and +B when there is no resistance between terminal 6 (CA3H) of the central gateway ECU (network gateway ECU) and terminal 16 (BAT) of the DLC3, or terminal 21 (CA3L) of the central gateway ECU (network gateway ECU) and termin

Lexus ES: Display Malfunction (B15A6,B15B0)

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Components

Check Bus 3 Line for Short to +B