DESCRIPTION
The multi-display assembly and air conditioning control 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 air conditioning control assembly.
DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
---|---|---|---|
B15D9 | Operation Panel Disconnected | A device that is listed in the AVC-LAN connected device record of the master unit is missing. |
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HINT:
The radio receiver assembly is the master unit.
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
Inspect the fuses for circuits related to this system before performing the following procedure.
PROCEDURE
1. | CHECK DTC |
(a) If DTC B15D6 is output, perform troubleshooting for DTC B15D6 first.
Result | Proceed to |
---|---|
DTC B15D6 is not output. | A |
DTC B15D6 is output. | B |
B | GO TO DTC B15D6 |
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2. | 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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3. | 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.
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4. | 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 |
|
5. | CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY POWER SOURCE) |
(a) Disconnect the G23 air conditioning control assembly connector.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
G23-4 (E) - 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 |
---|---|---|
G23-16 (+B) - G23-4 (E) | Power switch off | 11 to 14 V |
G23-7 (ACC) - G23-4 (E) | Power switch on (ACC) | 11 to 14 V |
G23-8 (IG+) - G23-4 (E) | Power switch on (IG) | 11 to 14 V |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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6. | CHECK HARNESS AND CONNECTOR (AIR CONDITIONING CONTROL ASSEMBLY - MULTI-DISPLAY ASSEMBLY) |
(a) Disconnect the G23 air conditioning control assembly connector.
(b) Disconnect the G22 multi-display assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection | Condition | Specified Condition |
---|---|---|
G22-6 (TX1+) - G23-1 (TX1+) | Always | Below 1 Ω |
G22-18 (TX1-) - G23-2 (TX1-) | Always | Below 1 Ω |
G22-6 (TX1+) or G23-1 (TX1+) - Body ground | Always | 10 kΩ or higher |
G22-18 (TX1-) or G23-2 (TX1-) - Body ground | Always | 10 kΩ or higher |
NG | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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7. | REPLACE AIR CONDITIONING CONTROL ASSEMBLY |
(a) Replace the air conditioning control 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 MULTI-DISPLAY ASSEMBLY |