Audio And Visual System (W/ Multi-Display Without Dvd Player) Microphone Circuit Between Microphone And Radio Receiver

Audio Visual Telematics. Corolla. Zre142 Aze141
Audio Video. Corolla. Zre142 Aze141

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CONFIRM MODEL

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

INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY

INSPECT TELEPHONE MICROPHONE ASSEMBLY

INSPECT TELEPHONE MICROPHONE ASSEMBLY

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

INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY

INSPECT MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)

INSPECT MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)

REPLACE TELEPHONE MICROPHONE ASSEMBLY

AUDIO AND VISUAL SYSTEM (w/ Multi-display without DVD Player) - Microphone Circuit between Microphone and Radio Receiver


DESCRIPTION

  1. The radio and display receiver assembly and telephone microphone assembly are connected to each other using the microphone connection detection signal lines (w/o Sliding Roof).
    The radio and display receiver assembly and map light assembly (telephone microphone assembly) are connected to each other using the microphone connection detection signal lines (w/ Sliding Roof).
  2. Using this circuit, the radio and display receiver assembly sends power to the telephone microphone assembly, and the telephone microphone assembly sends microphone signals to the radio and display receiver assembly (w/o Sliding Roof).
    Using this circuit, the radio and display receiver assembly 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 (w/ Sliding Roof).

WIRING DIAGRAM


Corolla. Zre142 Aze141.Audio Video.Audio And Visual System (W/O Multi-Display).Audio And Visual System (W/ Multi-Display Without Dvd Player) Microphone Circuit Between Microphone And Radio Receiver


INSPECTION PROCEDURE

1.CONFIRM MODEL
Result:
Result
Proceed to
w/o Sliding Roof
A
w/ Sliding Roof
B


B
Go to step 6
A


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

  1. Disconnect the E129 radio and display receiver assembly connector.

  1. Disconnect the O9 telephone microphone assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E129-4 (MACC) - O9-1 (MACC)
    		Always
    		Below 1 Ω
    E129-5 (MIC+) - O9-2 (MIC+)
    		Always
    		Below 1 Ω
    E129-19 (MIC-) - O9-4 (MIC-)
    		Always
    		Below 1 Ω
    E129-6 (SNS2) - O9-3 (SNS2)
    		Always
    		Below 1 Ω
    E129-4 (MACC) - Body ground
    		Always
    		10 kΩ or higher
    E129-5 (MIC+) - Body ground
    		Always
    		10 kΩ or higher
    E129-19 (MIC-) - Body ground
    		Always
    		10 kΩ or higher
    E129-18 (SGND) - Body ground
    		Always
    		10 kΩ or higher
    E129-6 (SNS2) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY

  1. Reconnect the E129 radio and display receiver assembly connector.

  1. Reconnect the O9 telephone microphone assembly connector.



    Corolla. Zre142 Aze141.Audio Video.Audio And Visual System (W/O Multi-Display).Audio And Visual System (W/ Multi-Display Without Dvd Player) Microphone Circuit Between Microphone And Radio Receiver

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    E129-4 (MACC) - Body ground
    		Ignition switch ACC
    		4 to 6 V

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E129-18 (SGND) - Body ground
    		Always
    		Below 1 Ω
    E129-19 (MIC-) - Body ground
    		Always
    		Below 1 Ω
    Text in Illustration
    *a
    		Component with harness connected
    (Radio and Display Receiver Assembly)


NG
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY (COROLLA_ZRE142 RM000002XAJ01EX.html)
OK


4.INSPECT TELEPHONE MICROPHONE ASSEMBLY

  1. Disconnect the O9 telephone microphone assembly connector.



    Corolla. Zre142 Aze141.Audio Video.Audio And Visual System (W/O Multi-Display).Audio And Visual System (W/ Multi-Display Without Dvd Player) Microphone Circuit Between Microphone And Radio Receiver

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    O9-3 (SNS2) - O9-4 (MIC-)
    		Always
    		Below 1 Ω
    Text in Illustration
    *a
    		Component without harness connected
    (Telephone Microphone Assembly)


NG
REPLACE TELEPHONE MICROPHONE ASSEMBLY (COROLLA_ZRE142 RM000001Q0103IX.html)
OK


5.INSPECT TELEPHONE MICROPHONE ASSEMBLY

  1. Reconnect the E129 radio and display receiver assembly connector.

  1. Reconnect the O9 telephone microphone assembly connector.

  1. Turn the ignition switch to ACC.



    Corolla. Zre142 Aze141.Audio Video.Audio And Visual System (W/O Multi-Display).Audio And Visual System (W/ Multi-Display Without Dvd Player) Microphone Circuit Between Microphone And Radio Receiver

  1. Connect an oscilloscope to terminals 2 (MIC+) and 4 (MIC-) of the O9 telephone microphone assembly connector.

  1. Check the waveform of the telephone microphone assembly using the oscilloscope.

    Result:
    Result
    		Proceed to
    A waveform synchronized with the voice input to the telephone microphone assembly is output
    		A
    A waveform synchronized with the voice input to the telephone microphone assembly is not output
    		B
    Text in Illustration
    *a
    		Component with harness connected
    (Telephone Microphone Assembly)


B
REPLACE TELEPHONE MICROPHONE ASSEMBLY (COROLLA_ZRE142 RM000001Q0103IX.html)
A

END

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

  1. Disconnect the E129 radio and display receiver assembly connector.

  1. Disconnect the O10 map light assembly (telephone microphone assembly) connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E129-4 (MACC) - O10-12 (ACC)
    		Always
    		Below 1 Ω
    E129-5 (MIC+) - O10-11 (MI1+)
    		Always
    		Below 1 Ω
    E129-19 (MIC-) - O10-10 (MIC-)
    		Always
    		Below 1 Ω
    E129-6 (SNS2) - O10-9 (SNS2)
    		Always
    		Below 1 Ω
    E129-4 (MACC) - Body ground
    		Always
    		10 kΩ or higher
    E129-5 (MIC+) - Body ground
    		Always
    		10 kΩ or higher
    E129-19 (MIC-) - Body ground
    		Always
    		10 kΩ or higher
    E129-18 (SGND) - Body ground
    		Always
    		10 kΩ or higher
    E129-6 (SNS2) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


7.INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY

  1. Reconnect the E129 radio and display receiver assembly connector.

  1. Reconnect the O10 map light assembly (telephone microphone assembly) connector.



    Corolla. Zre142 Aze141.Audio Video.Audio And Visual System (W/O Multi-Display).Audio And Visual System (W/ Multi-Display Without Dvd Player) Microphone Circuit Between Microphone And Radio Receiver

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    E129-4 (MACC) - Body ground
    		Ignition switch ACC
    		4 to 6 V

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E129-18 (SGND) - Body ground
    		Always
    		Below 1 Ω
    E129-19 (MIC-) - Body ground
    		Always
    		Below 1 Ω
    Text in Illustration
    *a
    		Component with harness connected
    (Radio and Display Receiver Assembly)


NG
REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY (COROLLA_ZRE142 RM000002XAJ01EX.html)
OK


8.INSPECT MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)

  1. Disconnect the O10 map light assembly (telephone microphone assembly) connector.



    Corolla. Zre142 Aze141.Audio Video.Audio And Visual System (W/O Multi-Display).Audio And Visual System (W/ Multi-Display Without Dvd Player) Microphone Circuit Between Microphone And Radio Receiver

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    O10-9 (SNS2) - O10-10 (MIC-)
    		Always
    		Below 1 Ω
    Text in Illustration
    *a
    		Component without harness connected
    (Map Light Assembly (Telephone Microphone Assembly))


NG
Go to step 10
OK


9.INSPECT MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)

  1. Reconnect the E129 radio and display receiver assembly connector.

  1. Reconnect the O10 map light assembly (telephone microphone assembly) connector.

  1. Turn the ignition switch to ACC.



    Corolla. Zre142 Aze141.Audio Video.Audio And Visual System (W/O Multi-Display).Audio And Visual System (W/ Multi-Display Without Dvd Player) Microphone Circuit Between Microphone And Radio Receiver

  1. Connect an oscilloscope to terminals 11 (MI1+) and 10 (MIC-) of the O10 map light assembly (telephone microphone assembly) connector.

  1. 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
    Text in Illustration
    *a
    		Component with harness connected
    (Map Light Assembly (Telephone Microphone Assembly))


B
Go to step 10
A

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (COROLLA_ZRE142 RM0000011BR0HQX.html)

10.REPLACE TELEPHONE MICROPHONE ASSEMBLY

  1. Replace the telephone microphone assembly (COROLLA_ZRE142 RM000001Q0103IX.html).

  1. Check if the same malfunction recurs.

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


B
REPLACE MAP LIGHT ASSEMBLY (COROLLA_ZRE142 RM00000340O00PX.html)
A

END