Toyota Corolla Cross Owners & Service Manuals

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

PROCEDURE

1.

CHECK MODEL

Result

Proceed to

w/ Telematics Transceiver

A

w/o Telematics Transceiver

B

B

GO TO STEP 12

A

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

A

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

OK

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

OK

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

OK

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

OK

7.

INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

Click here

NG

REPLACE FRONT NO. 1 SPEAKER ASSEMBLY

OK

8.

INSPECT FRONT NO. 2 SPEAKER ASSEMBLY

Click here

NG

REPLACE FRONT NO. 2 SPEAKER ASSEMBLY

OK

9.

INSPECT TELEMATICS TRANSCEIVER

(a) Remove the telematics transceiver.

Click here

*a

Component without harness connected

(Telematics Transceiver)

(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

OK

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

A

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

OK

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

OK

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

OK

16.

INSPECT FRONT NO. 1 SPEAKER ASSEMBLY

Click here

NG

REPLACE FRONT NO. 1 SPEAKER ASSEMBLY

OK

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

OK

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:

     Installation

    INSTALLATION CAUTION / NOTICE / HINT Procedure Part Name Code 1 OIL PUMP ASSEMBLY 15100 - - - 2 OIL STRAINER SUB-ASSEMBLY 15104 - - 3 OIL PAN SUB-ASSEMBLY 12101 - - 4 TI

     Removal

    REMOVAL CAUTION / NOTICE / HINT COMPONENTS (REMOVAL) Procedure Part Name Code 1 TONNEAU COVER ASSEMBLY 64910J - - - 2 DECK BOARD ASSEMBLY 58410B - - - 3 SPARE WHEEL CUSHION 64777J - - -

    © 2020-2024 Copyright www.tcorollacross.com