DESCRIPTION
The multi-display assembly and radio receiver assembly are connected by AVC-LAN communication lines.
This DTC is stored when an AVC-LAN communication error occurs between the multi-display assembly and radio receiver assembly.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
---|---|---|---|
B15D6 | Display Disconnected | A device that is listed in the AVC-LAN connected device record of the master unit is missing |
|
HINT:
The radio receiver assembly is the master unit.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Click here
PROCEDURE
1. | CHECK OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING) |
(a) Check for optional components.
(1) Check that optional components (including associated wiring) which generate radio waves are not installed.
Result | Proceed to |
---|---|
Optional components (including associated wiring) are installed. | A |
Optional components (including associated wiring) are not installed. | B |
HINT:
B | ![]() | GO TO STEP 3 |
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2. | REMOVE OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING) |
(a) Remove optional components (including associated wiring).
NOTICE:
Do not remove optional components or associated wiring without the permission of the customer.
|
3. | 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 CodesOK:
No DTCs are output.
OK | ![]() | END |
|
4. | CHECK HARNESS AND CONNECTOR (MULTI-DISPLAY ASSEMBLY POWER SOURCE) |
(a) Disconnect the J56 multi-display assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
J56-13 (GND1) - Body ground | Always | Below 1 Ω |
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection | Condition | Specified Condition |
---|---|---|
J56-12 (B) - J56-13 (GND1) | Always | 11 to 14 V |
J56-24 (ACC) - J56-13 (GND1) | Engine switch on (ACC) | 11 to 14 V |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
5. | CHECK HARNESS AND CONNECTOR (RADIO RECEIVER ASSEMBLY - MULTI-DISPLAY ASSEMBLY) |
(a) Disconnect the J148 radio receiver assembly connector.
(b) Disconnect the J56 multi-display assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
J148-5 (TX1+) - J56-7 (TX+) | Always | Below 1 Ω |
J148-6 (TX1-) - J56-19 (TX-) | Always | Below 1 Ω |
J148-5 (TX1+) or J56-7 (TX+) - Body ground | Always | 10 kΩ or higher |
J148-6 (TX1-) or J56-19 (TX-) - Body ground | Always | 10 kΩ or higher |
NG | ![]() | REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
6. | REPLACE MULTI-DISPLAY ASSEMBLY |
(a) Replace the multi-display assembly with a new or known good one.
Click here
(b) Clear the DTCs.
Body Electrical > Navigation System > Clear DTCs(c) Recheck for DTCs and check that no DTCs are output.
Body Electrical > Navigation System > Trouble CodesOK:
No DTCs are output.
OK | ![]() | END |
NG | ![]() | REPLACE RADIO RECEIVER ASSEMBLY |
Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Lane Control System: Internal Control Module Software Incompatibility Not Programmed (U030051)
DESCRIPTION The forward recognition camera receives the vehicle information from the ECM via CAN communication. If the forward recognition camera cannot store the vehicle information sent from the ECM, it stores DTC U030051. DTC No. Detection Item DTC Detection Condition Trouble Area U0 ...
Lexus RX (RX 350L, RX450h) 2016-2023 Repair Manual > Inside Vehicle: General Maintenance
GENERAL MAINTENANCE CAUTION / NOTICE / HINT
These are maintenance and inspection items that are considered to be the owner's responsibility.
The owner can do them or they can have them done at a service center. These items include those that should be checked on a daily basis, those that in most ...