Toyota Corolla Cross: Speaker Circuit
WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
- When replacing the telematics transceiver, make sure to replace it with a new one.
- Depending on the parts that are replaced during vehicle inspection or
maintenance, performing initialization, registration or calibration may
be needed.
Click here
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PROCEDURE
|
1. |
CHECK MODEL |
|
Result |
Proceed to |
|---|---|
|
w/ Telematics Transceiver |
A |
|
w/o Telematics Transceiver |
B |
| B | .gif)
|
GO TO STEP 12 |
|
.gif)
|
2. |
CHECK SPEAKER (OPERATION CHECK) |
|
(a) Enter diagnostic mode. Click here |
|
(b) Select "Failure Diagnosis" from the "Service Menu" screen.
(c) Select "System Check" from the "Failure Diagnosis" screen.
(d) Select "SPCheck ON" from the "System Check Mode" screen and perform speaker check.
OK:
Each speaker outputs sound from the selected audio source properly.
|
Result |
Proceed to |
|---|---|
|
Front No. 1 speaker assembly or front No. 2 speaker assembly does not outputs sound |
A |
|
Rear speaker assembly does not outputs sound |
B |
| B |
|
GO TO STEP 10 |
|
|
3. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY LH, TELEMATICS TRANSCEIVER) |
(a) Disconnect the I71 radio and display receiver assembly connector.
(b) Disconnect the I77 front No. 2 speaker assembly LH connector.
(c) Disconnect the I201 telematics transceiver connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I71-1 (FR+) - I201-1 (SPI+) |
Always |
Below 1 Ω |
|
I71-2 (FL+) - I77-4 (TWL+) |
Always |
Below 1 Ω |
|
I71-6 (FR-) - I201-2 (SPI-) |
Always |
Below 1 Ω |
|
I71-7 (FL-) - I77-2 (TWL-) |
Always |
Below 1 Ω |
|
I71-1 (FR+) or I201-1 (SPI+) - Body ground |
Always |
10 kΩ or higher |
|
I71-2 (FL+) or I77-4 (TWL+) - Body ground |
Always |
10 kΩ or higher |
|
I71-6 (FR-) or I201-2 (SPI-) - Body ground |
Always |
10 kΩ or higher |
|
I71-7 (FL-) or I77-2 (TWL-) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS AND CONNECTOR |
|
|
4. |
CHECK HARNESS AND CONNECTOR (FRONT NO. 1 SPEAKER ASSEMBLY LH - FRONT NO. 2 SPEAKER ASSEMBLY LH) |
(a) Disconnect the L1 front No. 1 speaker assembly LH connector.
(b) Disconnect the I77 front No. 2 speaker assembly LH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
L1-2 (+) - I77-3 (+) |
Always |
Below 1 Ω |
|
L1-1 (-) - I77-1 (-) |
Always |
Below 1 Ω |
|
L1-2 (+) or I77-3 (+) - Body ground |
Always |
10 kΩ or higher |
|
L1-1 (-) or I77-1 (-) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
5. |
CHECK HARNESS AND CONNECTOR (FRONT NO. 2 SPEAKER ASSEMBLY RH - TELEMATICS TRANSCEIVER) |
(a) Disconnect the I76 front No. 2 speaker assembly RH connector.
(b) Disconnect the I201 telematics transceiver connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I76-4 (+) - I201-3 (SPO+) |
Always |
Below 1 Ω |
|
I76-2 (-) - I201-4 (SPO-) |
Always |
Below 1 Ω |
|
I76-4 (+) or I201-3 (SPO+) - Body ground |
Always |
10 kΩ or higher |
|
I76-2 (-) or I201-4 (SPO-) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
6. |
CHECK HARNESS AND CONNECTOR (FRONT NO. 1 SPEAKER ASSEMBLY RH - FRONT NO. 2 SPEAKER ASSEMBLY RH) |
(a) Disconnect the K1 front No. 1 speaker assembly RH connector.
(b) Disconnect the I76 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 |
|---|---|---|
|
K1-2 (+) - I76-3 (+) |
Always |
Below 1 Ω |
|
K1-1 (-) - I76-1 (-) |
Always |
Below 1 Ω |
|
K1-2 (+) or I76-3 (+) - Body ground |
Always |
10 kΩ or higher |
|
K1-1 (-) or I76-1 (-) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
7. |
INSPECT FRONT NO. 1 SPEAKER ASSEMBLY |
Click here
| NG |
|
REPLACE FRONT NO. 1 SPEAKER ASSEMBLY |
|
|
8. |
INSPECT FRONT NO. 2 SPEAKER ASSEMBLY |
Click here
| NG |
|
REPLACE FRONT NO. 2 SPEAKER ASSEMBLY |
|
|
9. |
INSPECT TELEMATICS TRANSCEIVER |
|
(a) Remove the telematics transceiver. Click here |
|
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(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
1 (SPI+) - 3 (SPO+) |
Always |
Below 1 Ω |
|
2 (SPI-) - 4 (SPO-) |
Always |
Below 1 Ω |
|
1 (SPI+) - 2 (SPI-) |
Always |
10 kΩ or higher |
|
3 (SPO+) - 4 (SPO-) |
Always |
10 kΩ or higher |
| OK |
|
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
| NG |
|
REPLACE TELEMATICS TRANSCEIVER |
|
10. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - REAR SPEAKER ASSEMBLY) |
(a) Disconnect the I71 radio and display receiver assembly connector.
(b) Disconnect the M4 rear speaker assembly RH connector.
(c) Disconnect the N4 rear speaker assembly LH connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I71-4 (RR+) - M4-2 (+) |
Always |
Below 1 Ω |
|
I71-3 (RL+) - N4-2 (+) |
Always |
Below 1 Ω |
|
I71-9 (RR-) - M4-1 (-) |
Always |
Below 1 Ω |
|
I71-8 (RL-) - N4-1 (-) |
Always |
Below 1 Ω |
|
I71-4 (RR+) or M4-2 (+) - Body ground |
Always |
10 kΩ or higher |
|
I71-3 (RL+) or N4-2 (+) - Body ground |
Always |
10 kΩ or higher |
|
I71-9 (RR-) or M4-1 (-) - Body ground |
Always |
10 kΩ or higher |
|
I71-8 (RL-) or N4-1 (-) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
11. |
INSPECT REAR SPEAKER ASSEMBLY |
Click here
| OK |
|
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
| NG |
|
REPLACE REAR SPEAKER ASSEMBLY |
|
12. |
CHECK SPEAKER (OPERATION CHECK) |
|
(a) Enter diagnostic mode. Click here |
|
(b) Select "Failure Diagnosis" from the "Service Menu" screen.
(c) Select "System Check" from the "Failure Diagnosis" screen.
(d) Select "SPCheck ON" from the "System Check Mode" screen and perform speaker check.
OK:
Each speaker outputs sound from the selected audio source properly.
|
Result |
Proceed to |
|---|---|
|
Front No. 1 speaker assembly or front No. 2 speaker assembly does not outputs sound |
A |
|
Rear speaker assembly does not outputs sound |
B |
| B |
|
GO TO STEP 18 |
|
|
13. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - FRONT NO. 2 SPEAKER ASSEMBLY LH, TELEMATICS TRANSCEIVER) |
(a) Disconnect the I71 radio and display receiver assembly connector.
(b) Disconnect the I76 front No. 2 speaker assembly RH connector.
(c) Disconnect the I77 front No. 2 speaker assembly LH connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I71-1 (FR+) - I76-4 (TWR+) |
Always |
Below 1 Ω |
|
I71-2 (FL+) - I77-4 (TWL+) |
Always |
Below 1 Ω |
|
I71-6 (FR-) - I76-2 (TWR-) |
Always |
Below 1 Ω |
|
I71-7 (FL-) - I77-2 (TWL-) |
Always |
Below 1 Ω |
|
I71-1 (FR+) or I76-4 (TWR+) - Body ground |
Always |
10 kΩ or higher |
|
I71-2 (FL+) or I77-4 (TWL+) - Body ground |
Always |
10 kΩ or higher |
|
I71-6 (FR-) or I77-2 (TWR-) - Body ground |
Always |
10 kΩ or higher |
|
I71-7 (FL-) or I77-2 (TWL-) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS AND CONNECTOR |
|
|
14. |
CHECK HARNESS AND CONNECTOR (FRONT NO. 1 SPEAKER ASSEMBLY RH - FRONT NO. 2 SPEAKER ASSEMBLY RH) |
(a) Disconnect the K1 front No. 1 speaker assembly RH connector.
(b) Disconnect the I76 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 |
|---|---|---|
|
K1-2 (+) - I76-3 (+) |
Always |
Below 1 Ω |
|
K1-1 (-) - I76-1 (-) |
Always |
Below 1 Ω |
|
K1-2 (+) or I76-3 (+) - Body ground |
Always |
10 kΩ or higher |
|
K1-1 (-) or I76-1 (-) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
15. |
CHECK HARNESS AND CONNECTOR (FRONT NO. 1 SPEAKER ASSEMBLY LH - FRONT NO. 2 SPEAKER ASSEMBLY LH) |
(a) Disconnect the L1 front No. 1 speaker assembly LH connector.
(b) Disconnect the I77 front No. 2 speaker assembly LH connector.
(c) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
L1-2 (+) - I77-3 (+) |
Always |
Below 1 Ω |
|
L1-1 (-) - I77-1 (-) |
Always |
Below 1 Ω |
|
L1-2 (+) or I77-3 (+) - Body ground |
Always |
10 kΩ or higher |
|
L1-1 (-) or I77-1 (-) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
16. |
INSPECT FRONT NO. 1 SPEAKER ASSEMBLY |
Click here
| NG |
|
REPLACE FRONT NO. 1 SPEAKER ASSEMBLY |
|
|
17. |
INSPECT FRONT NO. 2 SPEAKER ASSEMBLY |
Click here
| OK |
|
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
| NG |
|
REPLACE FRONT NO. 2 SPEAKER ASSEMBLY |
|
18. |
CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - REAR SPEAKER ASSEMBLY) |
(a) Disconnect the I71 radio and display receiver assembly connector.
(b) Disconnect the M4 rear speaker assembly RH connector.
(c) Disconnect the N4 rear speaker assembly LH connector.
(d) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
I71-4 (RR+) - M4-2 (+) |
Always |
Below 1 Ω |
|
I71-3 (RL+) - N4-2 (+) |
Always |
Below 1 Ω |
|
I71-9 (RR-) - M4-1 (-) |
Always |
Below 1 Ω |
|
I71-8 (RL-) - N4-1 (-) |
Always |
Below 1 Ω |
|
I71-4 (RR+) or M4-2 (+) - Body ground |
Always |
10 kΩ or higher |
|
I71-3 (RL+) or N4-2 (+) - Body ground |
Always |
10 kΩ or higher |
|
I71-9 (RR-) or M4-1 (-) - Body ground |
Always |
10 kΩ or higher |
|
I71-8 (RL-) or N4-1 (-) - Body ground |
Always |
10 kΩ or higher |
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
19. |
INSPECT REAR SPEAKER ASSEMBLY |
Click here
| OK |
|
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY |
| NG |
|
REPLACE REAR SPEAKER ASSEMBLY |
READ NEXT:
AVC-LAN Circuit
DESCRIPTION
The audio and visual system communicates with each device via
AVC-LAN communication. If a malfunction such as a short in a communication line,
short to +B or short to ground occurs in
Microphone Circuit
WIRING DIAGRAM
w/ Telematics Transceiver
w/o Telematics Transceiver
CAUTION / NOTICE / HINT
NOTICE:
When replacing the telematics transceiver, make sure to replace it with
a new one.
My Settings cannot be Used on the Multi-display
CAUTION / NOTICE / HINT
NOTICE:
Depending on the parts that are replaced during vehicle inspection
or maintenance, performing initialization, registration or calibration may be needed.
Click here
SEE MORE:
Only Back Door cannot be Opened
DESCRIPTION The main body ECU (multiplex network body ECU) receives signals from the back door opener switch assembly. Then, the main body ECU (multiplex network body ECU) activates the back door lock motor. WIRING DIAGRAM
CAUTION / NOTICE / HINT
NOTICE:
When using the GTS with the vehicle
Data List / Active Test
DATA LIST / ACTIVE TEST DATA LIST HINT:
Using the GTS to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discover
