RM3660EC _56 Audio / Visual / Telematics _080751 AUDIO / VIDEO _0392314 AUDIO AND VISUAL SYSTEM(for Gasoline Model with Radio and Display Type (except 10.25 Inch Display)) J

AUDIO / VIDEO  AUDIO AND VISUAL SYSTEM(for Gasoline Model with Radio and Display Type (except 10.25 Inch Display))  Microphone Circuit between Microphone and Radio Receiver  


DESCRIPTION

·

The radio and display receiver assembly, map light assembly (telephone microphone assembly) are connected to each other using the microphone connection detection signal lines.*1

·

Using this circuit, the telematics transceiver sends power to the map light assembly (telephone microphone assembly), and the map light assembly (telephone microphone assembly) sends microphone signals to the radio and display receiver assembly via the telematics transceiver.*1

·

The radio and display receiver assembly and telephone microphone assembly are connected to each other using the microphone connection detection signal lines.*2

·

Using this circuit, the telematics transceiver sends power to the telephone microphone assembly, and the telephone microphone assembly sends microphone signals to the radio and display receiver assembly via the telematics transceiver.*2

*1: except ALLION, LEVIN GT

*2: for ALLION, LEVIN GT



WIRING DIAGRAM

except ALLION, LEVIN GT
E418507
0.344,3.01 2.302,3.729 1.958,0.719 10 false Map Light Assembly (Telephone Microphone Assembly) 0.323,2.823 0.635,3.021 0.313,0.198 10 false T6 5.458,3.063 7.156,3.635 1.698,0.573 10 false Radio and Display Receiver Assembly 5.448,2.885 5.906,3.083 0.458,0.198 10 false I166 3.094,3.042 4.604,3.688 1.51,0.646 10 false Telematics Transceiver 3.104,2.854 3.563,3.052 0.458,0.198 10 false I72 1.958,2.24 2.594,2.75 0.635,0.51 10 false (Shielded) 4.635,2.271 5.271,2.781 0.635,0.51 10 false (Shielded) 5.958,0.583 6.573,0.781 0.615,0.198 10 false SNS2 0.875,0.573 1.49,0.771 0.615,0.198 10 false SNS2 5.958,1.313 6.573,1.51 0.615,0.198 10 false MIN+ 5.958,1.844 6.573,2.042 0.615,0.198 10 false MIN- 5.948,2.417 6.563,2.615 0.615,0.198 10 false SGND 0.844,1.594 1.458,1.792 0.615,0.198 10 false MCO+ 0.844,1.948 1.458,2.146 0.615,0.198 10 false MCO- 0.823,1.219 1.438,1.417 0.615,0.198 10 false MACC 3.25,1.188 3.865,1.385 0.615,0.198 10 false MCVD 3.594,1.354 4.208,1.552 0.615,0.198 10 false MCO+ 3.615,1.844 4.229,2.042 0.615,0.198 10 false MCO- 3.25,1.604 3.865,1.802 0.615,0.198 10 false MCI+ 3.26,1.958 3.875,2.156 0.615,0.198 10 false MCI- 3.26,2.406 3.875,2.604 0.615,0.198 10 false SGND 4.042,1.208 4.354,1.406 0.313,0.198 10 false 16 4.052,1.771 4.365,1.969 0.313,0.198 10 false 32 3.083,1.094 3.396,1.292 0.313,0.198 10 false 5 3.063,1.49 3.375,1.688 0.313,0.198 10 false 6 3.073,1.865 3.385,2.063 0.313,0.198 10 false 7 3.021,2.281 3.333,2.479 0.313,0.198 10 false 23 1.344,1.104 1.656,1.302 0.313,0.198 10 false 7 1.333,1.5 1.646,1.698 0.313,0.198 10 false 6 1.333,1.865 1.656,2.063 0.323,0.198 10 false 5 1.354,0.458 1.667,0.656 0.313,0.198 10 false 4 5.74,0.479 5.896,0.677 0.156,0.198 10 false 6 5.729,1.208 5.885,1.406 0.156,0.198 10 false 5 5.677,2.313 5.99,2.51 0.313,0.198 10 false 18 5.698,1.771 6.01,1.969 0.313,0.198 10 false 19

for ALLION, LEVIN GT
E382847
0.344,2.823 1.771,3.177 1.427,0.354 10 false Telephone Microphone Assembly 0.344,2.656 0.802,2.854 0.458,0.198 10 false T2 1.417,0.615 1.865,0.813 0.448,0.198 10 false SNS1 1.438,1.094 1.906,1.302 0.469,0.208 10 false MAC1 1.458,1.656 1.906,1.854 0.448,0.198 10 false MO1+ 1.448,2.208 1.906,2.406 0.458,0.198 10 false MO1- 3.417,1.104 3.865,1.302 0.448,0.198 10 false MCVD 3.875,1.115 4.323,1.313 0.448,0.198 10 false MCO+ 3.417,1.667 3.865,1.865 0.448,0.198 10 false MCI+ 3.427,2.229 3.875,2.427 0.448,0.198 10 false MCI- 3.427,2.781 3.875,2.979 0.448,0.198 10 false SGND 3.885,1.667 4.313,1.865 0.427,0.198 10 false MCO- 5.958,0.531 6.5,0.74 0.542,0.208 10 false SNS*2 5.958,1.104 6.406,1.302 0.448,0.198 10 false MIN+ 5.958,1.667 6.406,1.865 0.448,0.198 10 false MIN- 5.958,2.208 6.406,2.406 0.448,0.198 10 false SGND 5.427,3.26 7.125,3.646 1.698,0.385 10 false Radio and Display Receiver Assembly 5.51,3.094 5.969,3.323 0.458,0.229 10 false I166 3.01,2.99 3.469,3.188 0.458,0.198 10 false I72 3.115,3.146 4.906,3.5 1.792,0.354 10 false Telephone Transceiver Assembly 1.99,0.51 2.104,0.708 0.115,0.198 10 false 5 1.979,0.99 2.094,1.188 0.115,0.198 10 false 1 1.99,1.542 2.104,1.74 0.115,0.198 10 false 2 1.979,2.115 2.094,2.313 0.115,0.198 10 false 4 3.208,1.021 3.385,1.229 0.177,0.208 10 false 5 3.188,1.563 3.365,1.771 0.177,0.208 10 false 6 3.188,2.094 3.365,2.302 0.177,0.208 10 false 7 3.177,2.667 3.354,2.875 0.177,0.208 10 false 23 4.375,1 4.594,1.24 0.219,0.24 10 false 16 4.375,1.552 4.552,1.76 0.177,0.208 10 false 32 5.698,0.49 5.875,0.698 0.177,0.208 10 false 6 5.688,0.99 5.865,1.198 0.177,0.208 10 false 5 5.688,1.542 5.865,1.75 0.177,0.208 10 false 19 5.688,2.115 5.865,2.323 0.177,0.208 10 false 18 0.083,3.344 1.344,3.615 1.26,0.271 10 false *1: Shielded 4.833,1.927 5.292,2.125 0.458,0.198 10 false *1 2.698,2.5 3.021,2.646 0.323,0.146 10 false *1 5.958,0.792 6.542,1.021 0.583,0.229 10 false SNS2*3 1.917,3.344 3.177,3.615 1.26,0.271 10 false *3: for LEVON GT 0.958,3.344 2.219,3.615 1.26,0.271 10 false *2: for ALLION

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.

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>AUDIO AND VISUAL SYSTEM (for Gasoline Model with Radio and Display Type (except 10.25 Inch Display))>PRECAUTION

·

Before replacing the telematics transceiver, refer to Service Bulletin.



PROCEDURE

1.CHECK MODEL
a.

Choose the model to be inspected.

Result:
Result Proceed to
except ALLION, LEVIN GT A
for ALLION, LEVIN GT B




A

2.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY))

B

10.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - TELEPHONE MICROPHONE ASSEMBLY)
2.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY))
a.

Disconnect the I166 radio and display receiver assembly connector.


b.

Disconnect the T6 map light assembly (telephone microphone assembly) connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
I166-6 (SNS2) - T6-4 (SNS2) Always Below 1 Ω
I166-6 (SNS2) or T6-4 (SNS2) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - TELEMATICS TRANSCEIVER)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

3.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - TELEMATICS TRANSCEIVER)
a.

Disconnect the I166 radio and display receiver assembly connector.


b.

Disconnect the I72 telematics transceiver connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
I166-5 (MIN+) - I72-16 (MCO+) Always Below 1 Ω
I166-19 (MIN-) - I72-32 (MCO-) Always Below 1 Ω
I166-5 (MIN+) or I72-16 (MCO+) - Body ground Always 10 kΩ or higher
I166-19 (MIN-) or I72-32 (MCO-) - Body ground Always 10 kΩ or higher
I166-18 (SGND) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

4.CHECK HARNESS AND CONNECTOR (TELEMATICS TRANSCEIVER - MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY))

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.CHECK HARNESS AND CONNECTOR (TELEMATICS TRANSCEIVER - MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY))
a.

Disconnect the I72 telematics transceiver connector.


b.

Disconnect the T6 map light assembly (telephone microphone assembly) connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
I72-5 (MCVD) - T6-7 (MACC) Always Below 1 Ω
I72-6 (MCI+) - T6-6 (MCO+) Always Below 1 Ω
I72-7 (MCI-) - T6-5 (MCO-) Always Below 1 Ω
I72-5 (MCVD) - T6-7 (MACC) - Body ground Always 10 kΩ or higher
I72-6 (MCI+) - T6-6 (MCO+) - Body ground Always 10 kΩ or higher
I72-7 (MCI-) - T6-5 (MCO-) - Body ground Always 10 kΩ or higher
I72-23 (SGND) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

5.INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

5.INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY
a.

Reconnect the I166 radio and display receiver assembly connector.


b.

Reconnect the T6 map light assembly (telephone microphone assembly) connector.


c.
E366385
1.49,0.302 1.969,0.573 0.479,0.271 1.354,2.646 2.063,2 false 2.573,2.698 2.198,1.979 false 0.188,0.167 0.5,0.365 0.313,0.198 10 false *a 1.573,0.354 2.031,0.552 0.458,0.198 10 false I166 1.208,2.677 1.823,2.875 0.615,0.198 10 false MIN- 2.396,2.719 3.01,2.917 0.615,0.198 10 false SGND
*a Component with harness connected
(Radio and Display Receiver Assembly)


Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
I166-18 (SGND) - Body ground Always Below 1 Ω
I166-19 (MIN-) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

6.INSPECT TELEMATICS TRANSCEIVER

NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>RADIO RECEIVER>REMOVAL


6.INSPECT TELEMATICS TRANSCEIVER
a.

Reconnect the I72 telematics transceiver connector.


b.
E413603C02
1.469,0.531 1.906,0.802 0.438,0.271 2.302,1.823 2.146,1.167 false 2.479,1.813 2.719,1.156 false 2.552,2.625 2.344,1.948 false 0.167,0.167 0.417,0.333 0.25,0.167 10 false *a 1.594,0.583 2.031,0.844 0.438,0.26 10 false I72 2.01,0.979 2.427,1.146 0.417,0.167 10 false MCI- 2.531,0.979 3.031,1.146 0.5,0.167 10 false MCVD 2.396,2.656 2.896,2.823 0.5,0.167 10 false SGND
*a Component with harness connected
(Telematics Transceiver)


Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition
I72-5 (MCVD) - Body ground Engine switch on (ACC) 4 to 6 V



c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
I72-23 (SGND) - Body ground Always Below 1 Ω
I72-7 (MCI-) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

7.INSPECT MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)

NG

REPLACE TELEMATICS TRANSCEIVER

Click hereAudio / Visual / Telematics>TELEMATICS>TELEMATICS TRANSCEIVER>REMOVAL


7.INSPECT MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)
a.

Remove the map light assembly (telephone microphone assembly).

Click hereVehicle Interior>LIGHTING (INT)>PERSONAL LIGHT>REMOVAL


b.
E360500
1.781,1.229 1.521,0.646 1.521,0.646 1.313,0.646 false 1.938,1.25 2.292,0.656 2.292,0.656 2.51,0.656 false 0.125,0.135 0.438,0.333 0.313,0.198 10 false *a 0.917,0.552 1.427,0.76 0.51,0.208 10 false MCO- 2.573,0.594 3.104,0.854 0.531,0.26 10 false SNS2
*a Component without harness connected
(Map Light Assembly (Telephone Microphone Assembly))


Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
4 (SNS2) - 5 (MCO-) Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

8.INSPECT MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)

NG

9.REPLACE TELEPHONE MICROPHONE ASSEMBLY
8.INSPECT MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)
a.

Turn the engine switch on (ACC).


b.
E411570
1.479,0.781 1.938,1.073 0.458,0.292 2.5,2.802 2.229,2.802 2.229,2.802 1.781,2.104 true 1.667,2.042 2.375,1.344 2.375,1.344 2.583,1.344 true 0.167,0.156 0.479,0.313 0.313,0.156 10 false *a 2.635,1.25 3.25,1.448 0.615,0.198 10 false MCO+ 2.563,2.729 3.177,2.927 0.615,0.198 10 false MCO- 1.625,0.854 1.938,1.052 0.313,0.198 10 false T6
*a Component with harness connected
(Map Light Assembly (Telephone Microphone Assembly))


Connect an oscilloscope to terminals 5 (MCO-) and 6 (MCO+) of the T6 map light assembly (telephone microphone assembly) connector.


c.

Check the waveform of the map light assembly (telephone microphone assembly) using the oscilloscope.

Result:
Result Proceed to
A waveform synchronized with the voice input to the map light assembly (telephone microphone assembly) is output. A
A waveform synchronized with the voice input to the map light assembly (telephone microphone assembly) is not output. B




A

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>AUDIO AND VISUAL SYSTEM (for Gasoline Model with Radio and Display Type (except 10.25 Inch Display))>PROBLEM SYMPTOMS TABLE


B

9.REPLACE TELEPHONE MICROPHONE ASSEMBLY
9.REPLACE TELEPHONE MICROPHONE ASSEMBLY
a.

Replace the telephone microphone assembly with a new or known good one.

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>MICROPHONE>REMOVAL


b.

Check if the same malfunction recurs.

Result:
Result Proceed to
Malfunction does not recur (returns to normal). A
Malfunction recurs. B




A

END

B

REPLACE MAP LIGHT ASSEMBLY

Click hereVehicle Interior>LIGHTING (INT)>PERSONAL LIGHT>REMOVAL


10.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - TELEPHONE MICROPHONE ASSEMBLY)
a.

Disconnect the I166 radio and display receiver assembly connector.


b.

Disconnect the T2 telephone microphone assembly connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition

*1: for ALLION

*2: for LEVIN GT

I166-6 (SNS*1, SNS2*2) - T2-5 (SNS1) Always Below 1 Ω
I166-6 (SNS*1, SNS2*2) or T2-5 (SNS1) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

11.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - TELEMATICS TRANSCEIVER)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

11.CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - TELEMATICS TRANSCEIVER)
a.

Disconnect the I166 radio and display receiver assembly connector.


b.

Disconnect the I72 telematics transceiver connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
I166-5 (MIN+) - I72-16 (MCO+) Always Below 1 Ω
I166-19 (MIN-) - I72-32 (MCO-) Always Below 1 Ω
I166-5 (MIN+) or I72-16 (MCO+) - Body ground Always 10 kΩ or higher
I166-19 (MIN-) or I72-32 (MCO-) - Body ground Always 10 kΩ or higher
I166-18 (SGND) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

12.CHECK HARNESS AND CONNECTOR (TELEMATICS TRANSCEIVER - TELEPHONE MICROPHONE ASSEMBLY)

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

12.CHECK HARNESS AND CONNECTOR (TELEMATICS TRANSCEIVER - TELEPHONE MICROPHONE ASSEMBLY)
a.

Disconnect the I72 telematics transceiver connector.


b.

Disconnect the T2 telephone microphone assembly connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
I72-5 (MCVD) - T2-1 (MAC1) Always Below 1 Ω
I72-6 (MCI+) - T2-2 (MO1+) Always Below 1 Ω
I72-7 (MCI-) - T2-4 (MO1-) Always Below 1 Ω
I72-5 (MCVD) - T2-1 (MAC1) - Body ground Always 10 kΩ or higher
I72-6 (MCI+) - T2-2 (MO1+) - Body ground Always 10 kΩ or higher
I72-7 (MCI-) - T2-4 (MO1-) - Body ground Always 10 kΩ or higher
I72-23 (SGND) - Body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

13.INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR

13.INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY
a.

Reconnect the I166 radio and display receiver assembly connector.


b.

Reconnect the I72 telephone microphone assembly connector.


c.
E366385
1.49,0.302 1.969,0.573 0.479,0.271 1.354,2.646 2.063,2 false 2.573,2.698 2.198,1.979 false 0.188,0.167 0.5,0.365 0.313,0.198 10 false *a 1.573,0.354 2.031,0.552 0.458,0.198 10 false I166 1.208,2.677 1.823,2.875 0.615,0.198 10 false MIN- 2.396,2.719 3.01,2.917 0.615,0.198 10 false SGND
*a Component with harness connected
(Radio and Display Receiver Assembly)


Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
I166-18 (SGND) - Body ground Always Below 1 Ω
I166-19 (MIN-) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

14.INSPECT TELEMATICS TRANSCEIVER

NG

REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>RADIO RECEIVER>REMOVAL


14.INSPECT TELEMATICS TRANSCEIVER
a.

Reconnect the I72 telematics transceiver connector.


b.
E413603C02
1.469,0.531 1.906,0.802 0.438,0.271 2.302,1.823 2.146,1.167 false 2.479,1.813 2.719,1.156 false 2.552,2.625 2.344,1.948 false 0.167,0.167 0.417,0.333 0.25,0.167 10 false *a 1.594,0.583 2.031,0.844 0.438,0.26 10 false I72 2.01,0.979 2.427,1.146 0.417,0.167 10 false MCI- 2.531,0.979 3.031,1.146 0.5,0.167 10 false MCVD 2.396,2.656 2.896,2.823 0.5,0.167 10 false SGND
*a Component with harness connected
(Telematics Transceiver)


Measure the voltage according to the value(s) in the table below.

Standard Voltage:
Tester Connection Condition Specified Condition
I72-5 (MCVD) - Body ground Engine switch on (ACC) 4 to 6 V



c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
I72-23 (SGND) - Body ground Always Below 1 Ω
I72-7 (MCI-) - Body ground Always Below 1 Ω



Result:
Proceed to
OK
NG



OK

15.CHECK TELEPHONE MICROPHONE ASSEMBLY (OUTPUT TO TELEMATICS TRANSCEIVER)

NG

REPLACE TELEMATICS TRANSCEIVER

Click hereAudio / Visual / Telematics>TELEMATICS>TELEMATICS TRANSCEIVER>REMOVAL


15.CHECK TELEPHONE MICROPHONE ASSEMBLY (OUTPUT TO TELEMATICS TRANSCEIVER)
a.

Check the output waveform.

i.
E489783
1.5,0.313 1.906,0.573 0.406,0.26 1.063,0.542 1.25,0.542 1.25,0.542 1.448,1.24 true 2.365,0.552 2.177,0.552 2.177,0.552 1.938,1.229 true 0.365,0.448 0.677,0.646 0.313,0.198 10 false *a 2.833,3.448 3.292,3.646 0.458,0.198 10 false GND 1.646,0.354 2.01,0.594 0.365,0.24 10 false T2 0.625,0.448 1.24,0.646 0.615,0.198 10 false MO1- 2.448,0.469 3.063,0.667 0.615,0.198 10 false MO1+
*a Component with harness connected
(Telephone Microphone Assembly)


Remove the telephone microphone assembly with the connector(s) still connected.

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>MICROPHONE>REMOVAL


ii.

Connect an oscilloscope to terminal T2-2 (MO1+) and T2-4 (MO1-).


iii.

Turn the engine switch on (ACC).


iv.

Sound is input to the telephone microphone assembly when the user is closer than 125 mm from the telephone microphone assembly sound holes in the roof headlining holder cover.


v.

Check the signal waveform according to the condition(s) in the table below.

Item Condition
Measurement terminal T2-2 (MO1+) - T2-4 (MO1-)
Tool setting 50 mV/DIV., 500 ms/DIV.
Vehicle condition
1.

Engine switch on (ACC)

2.

Sound is input to the telephone microphone assembly when the user is closer than 125 mm from the telephone microphone assembly sound holes in the roof headlining holder cover.



OK:

The waveform is similar to that shown in the illustration.


HINT:

The oscilloscope waveform shown in the illustration is an example for reference only.




Result:
Proceed to
OK
NG



OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>AUDIO AND VISUAL SYSTEM (for Gasoline Model with Radio and Display Type (except 10.25 Inch Display))>PROBLEM SYMPTOMS TABLE


NG

REPLACE TELEPHONE MICROPHONE ASSEMBLY

Click hereAudio / Visual / Telematics>AUDIO / VIDEO>MICROPHONE>REMOVAL