| Last Modified: 08-21-2023 | 6.11:8.1.0 | Doc ID: RM100000001RU9D |
| Model Year Start: 2021 | Model: Avalon | Prod Date Range: [08/2020 - ] |
| Title: AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model): B15C3; Speaker Output Short; 2021 - 2022 MY Avalon [08/2020 - ] | ||
|
DTC |
B15C3 |
Speaker Output Short |
DESCRIPTION
This DTC is stored when a malfunction occurs in the speakers.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
|---|---|---|---|
|
B15C3 |
Speaker Output Short |
A short is detected in the speaker output circuit |
|
WIRING DIAGRAM
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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![2019 - 2021 MY Avalon [04/2018 - 08/2021]; AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (for Gasoline Model): PRECAUTION](/t3Portal/stylegraphics/info.gif)
-
When replacing the radio and display receiver assembly, always replace it with a new one. If a radio and display receiver assembly which was installed to another vehicle is used, the following may occur:
- A communication malfunction DTC is stored.
- The radio and display receiver assembly may not operate normally.
-
Before replacing the DCM (telematics transceiver), refer to Registration
Click here
PROCEDURE
|
1. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY, DCM (TELEMATICS TRANSCEIVER) OR SPEAKERS - BODY GROUND) |
(a) Disconnect the G14 radio and display receiver assembly connector.
(b) Disconnect the G123 DCM (telematics transceiver) connector.
(c) Disconnect the G7 front No. 2 speaker assembly LH connector.
(d) Disconnect the J3 and J4 rear No. 2 speaker assembly connectors.
(e) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G14-1 (FR+) or G123-1 (SPI+) - Body ground |
Always |
10 kΩ or higher |
|
G14-6 (FR-) or G123-2 (SPI-) - Body ground |
Always |
10 kΩ or higher |
|
G14-2 (FL+) or G7-4 (+TW) - Body ground |
Always |
10 kΩ or higher |
|
G14-7 (FL-) or G7-2 (-TW) - Body ground |
Always |
10 kΩ or higher |
|
G14-4 (RR+) or J3-4 (+TW) - Body ground |
Always |
10 kΩ or higher |
|
G14-9 (RR-) or J3-2 (-TW) - Body ground |
Always |
10 kΩ or higher |
|
G14-3 (RL+) or J4-4 (+TW) - Body ground |
Always |
10 kΩ or higher |
|
G14-8 (RL-) or J4-2 (-TW) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
2. |
CHECK HARNESS AND CONNECTOR (DCM (TELEMATICS TRANSCEIVER) OR SPEAKER - BODY GROUND) |
(a) Disconnect the G123 DCM (telematics transceiver) connector.
(b) Disconnect the G6 front No. 2 speaker assembly RH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
G123-3 (SPO+) or G6-4 (+TW) - Body ground |
Always |
10 kΩ or higher |
|
G123-4 (SPO-) or G6-2 (-TW) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
3. |
INSPECT DCM (TELEMATICS TRANSCEIVER) |
(a) Remove the DCM (telematics transceiver).
Click here
|
(b) Measure the resistance according to the value(s) in the table below. Standard Resistance:
|
|
| NG |
|
|
|
4. |
CHECK HARNESS AND CONNECTOR (FRONT NO. 1 SPEAKER ASSEMBLY OR FRONT NO. 2 SPEAKER ASSEMBLY - BODY GROUND) |
(a) Disconnect the I1 and I15 front No. 1 speaker assembly connectors.
(b) Disconnect the G6 and G7 front No. 2 speaker assembly connectors.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I1-2 or G6-3 (+) - Body ground |
Always |
10 kΩ or higher |
|
I1-1 or G6-1 (-) - Body ground |
Always |
10 kΩ or higher |
|
I15-2 or G7-3 (+) - Body ground |
Always |
10 kΩ or higher |
|
I15-1 or G7-1 (-) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
5. |
CHECK HARNESS AND CONNECTOR (REAR SPEAKER ASSEMBLY OR REAR NO. 2 SPEAKER ASSEMBLY - BODY GROUND) |
(a) Disconnect the J11 and J12 rear speaker assembly connectors.
(b) Disconnect the J3 and J4 rear No. 2 speaker assembly connectors.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
J11-1 or J3-1 (-) - Body ground |
Always |
10 kΩ or higher |
|
J11-2 or J3-3 (+) - Body ground |
Always |
10 kΩ or higher |
|
J12-1 or J4-1 (-) - Body ground |
Always |
10 kΩ or higher |
|
J12-2 or J4-3 (+) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
6. |
INSPECT FRONT NO. 1 SPEAKER ASSEMBLY |
(a) Remove the front No. 1 speaker assembly.
Click here
(b) Inspect the front No. 1 speaker assembly.
Click here
| NG |
|
|
|
7. |
INSPECT REAR SPEAKER ASSEMBLY |
(a) Remove the rear speaker assembly.
Click here
(b) Inspect the rear speaker assembly.
Click here
| NG |
|
|
|
8. |
REPLACE FRONT NO. 2 SPEAKER ASSEMBLY |
(a) Remove the front No. 2 speaker assembly.
Click here
(b) Inspect the front No. 2 speaker assembly.
Click here
(c) Clear the DTCs.
Body Electrical > Navigation System > Clear DTCs
(d) Recheck for DTCs and check that no DTCs are output.
Body Electrical > Navigation System > Trouble Codes
OK:
No DTCs are output.
| OK |
|
END |
|
|
9. |
REPLACE REAR NO. 2 SPEAKER ASSEMBLY |
(a) Remove the rear No. 2 speaker assembly.
Click here
(b) Inspect the rear No. 2 speaker assembly.
Click here
(c) Clear the DTCs.
Body Electrical > Navigation System > Clear DTCs
(d) Recheck for DTCs and check that no DTCs are output.
Body Electrical > Navigation System > Trouble Codes
OK:
No DTCs are output.
| OK |
|
END |
| NG |
|
|
|