DESCRIPTION
The navigation receiver assembly and stereo component amplifier assembly are connected via AVC-LAN communication.
This DTC is stored when an AVC-LAN communication error occurs between the navigation receiver assembly and stereo component amplifier assembly.
DTC No. |
DTC Detection Condition |
Trouble Area |
---|---|---|
B15D3 |
When either of the following conditions is met:
|
|
HINT:
The navigation 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 inspection procedure.
PROCEDURE
1. |
CHECK DTC |
(a) If DTC B15C3 is output, perform the troubleshooting for DTC B15C3 first.
Result |
Proceed to |
---|---|
DTC B15C3 is not output. |
A |
DTC B15C3 is output. |
B |
B | ![]() |
GO TO DTC B15C3 |
|
2. |
CHECK OPTIONAL COMPONENTS (INCLUDING ASSOCIATED WIRING) |
(a) 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 4 |
|
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.
|
4. |
CHECK DTC |
(a) Clear the DTCs (See page ).
(b) Recheck for DTCs and check that no DTCs are output.
OK:
No DTCs are output.
OK | ![]() |
END |
|
5. |
CHECK HARNESS AND CONNECTOR (STEREO COMPONENT AMPLIFIER ASSEMBLY POWER SOURCE) |
(a) Disconnect the E13 and E14 stereo component amplifier assembly connectors.
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
E13-2 (GND) - Body ground |
Always |
Below 1 Ω |
E13-6 (GND2) - 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 |
---|---|---|
E13-1 (+B) - E13-2 (GND) |
Always |
11 to 14 V |
E13-3 (+B2) - E13-2 (GND) |
Always |
11 to 14 V |
E14-12 (ACC) - E13-2 (GND) |
Ignition switch ACC |
11 to 14 V |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
6. |
CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER ASSEMBLY - STEREO COMPONENT AMPLIFIER ASSEMBLY) |
(a) Disconnect the E40 navigation receiver assembly connector.
(b) Disconnect the E14 stereo component amplifier assembly connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection |
Condition |
Specified Condition |
---|---|---|
E40-7 (TX1+) - E14-8 (TX+) |
Always |
Below 1 Ω |
E40-8 (TX1-) - E14-7 (TX-) |
Always |
Below 1 Ω |
E40-7 (TX1+) - Body ground |
Always |
10 kΩ or higher |
E40-8 (TX1-) - Body ground |
Always |
10 kΩ or higher |
NG | ![]() |
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
7. |
REPLACE STEREO COMPONENT AMPLIFIER ASSEMBLY |
(a) Replace the stereo component amplifier assembly with a new or known good
one (See page ).
(b) Clear the DTCs (See page ).
(c) Recheck for DTCs and check that no DTCs are output.
OK:
No DTCs are output.
OK | ![]() |
END |
NG | ![]() |
REPLACE NAVIGATION RECEIVER ASSEMBLY |
Passenger Side Buckle Switch Circuit Malfunction (B1771)
DESCRIPTION
The passenger side buckle switch circuit consists of the occupant classification
ECU and front seat inner belt assembly RH.
DTC B1771 is recorded when a malfunction is detected in the passenger side buckle
switch circuit.
Troubleshoot DTC B1 ...
Ignition Switch Circuit
DESCRIPTION
The main body ECU (driver side junction block assembly) determines the ignition
switch position (OFF, ACC, ON) based on signals from the IG or ACC circuit.
WIRING DIAGRAM
PROCEDURE
1.
READ VALUE USING TECHSTREAM
...
Rear window defogger
Clear the rear window using the defogger.
On/off
The defogger will automatically turn off after 15 or 60 minutes.
This operation time changes according to the ambient temperature and vehicle
speed.
Pressing the switch again also turns the defogger off. ...