Audio And Visual System (W/O Multi-Display) Microphone Circuit Between Microphone And Radio Receiver

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

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT RADIO RECEIVER ASSEMBLY

CONFIRM MODEL

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

INSPECT TELEPHONE MICROPHONE ASSEMBLY

INSPECT TELEPHONE MICROPHONE ASSEMBLY

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

INSPECT MAP LIGHT ASSEMBLY

INSPECT MAP LIGHT ASSEMBLY

REPLACE TELEPHONE MICROPHONE ASSEMBLY

AUDIO AND VISUAL SYSTEM (w/o Multi-display) - Microphone Circuit between Microphone and Radio Receiver


DESCRIPTION

This circuit sends the microphone voice signal from the telephone microphone assembly to the radio receiver assembly.
Using this circuit, the radio receiver assembly sends power to the telephone microphone assembly, and the telephone microphone assembly sends microphone voice signals to the radio receiver assembly (w/o sliding roof system).
Using this circuit, the radio receiver assembly sends power to the map light assembly (telephone microphone assembly), and the map light assembly sends microphone voice signals to the radio receiver assembly (w/ sliding roof system).

WIRING DIAGRAM


w/o Sliding Roof System

Corolla. Zre142 Aze141.Audio Video.Audio And Visual System (W/O Multi-Display).Audio And Visual System (W/O Multi-Display) Microphone Circuit Between Microphone And Radio Receiver


w/ Sliding Roof System

Corolla. Zre142 Aze141.Audio Video.Audio And Visual System (W/O Multi-Display).Audio And Visual System (W/O Multi-Display) Microphone Circuit Between Microphone And Radio Receiver


INSPECTION PROCEDURE

1.INSPECT RADIO RECEIVER ASSEMBLY


    Corolla. Zre142 Aze141.Audio Video.Audio And Visual System (W/O Multi-Display).Audio And Visual System (W/O Multi-Display) Microphone Circuit Between Microphone And Radio Receiver

  1. Disconnect the E114 radio receiver assembly connector.

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    E114-4 (MACC) - Body ground
    		Ignition switch ON
    		4 to 6 V

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E114-18 (SGND) - Body ground
    		Always
    		Below 1 Ω
    E114-19 (MIC-) - Body ground
    		Always
    		Below 1 Ω
Text in Illustration
*a
Component without harness connected
(Radio Receiver Assembly)


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


2.CONFIRM MODEL

Result:

Condition
Proceed to
w/o sliding roof system
A
w/ sliding roof system
B


B
Go to step 6
A


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

  1. Disconnect the E114 radio 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
    E114-6 (SNS2) - O9-3 (SNS2)
    		Always
    		Below 1 Ω
    E114-5 (MIC+) - O9-2 (MIC+)
    		Always
    		Below 1 Ω
    E114-19 (MIC-) - O9-4 (MIC-)
    		Always
    		Below 1 Ω
    E114-4 (MACC) - O9-1 (MACC)
    		Always
    		Below 1 Ω
    E114-6 (SNS2) - Body ground
    		Always
    		10 kΩ or higher
    E114-5 (MIC+) - Body ground
    		Always
    		10 kΩ or higher
    E114-19 (MIC-) - Body ground
    		Always
    		10 kΩ or higher
    E114-4 (MACC) - Body ground
    		Always
    		10 kΩ or higher
    E114-18 (SGND) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


4.INSPECT TELEPHONE MICROPHONE ASSEMBLY


    Corolla. Zre142 Aze141.Audio Video.Audio And Visual System (W/O Multi-Display).Audio And Visual System (W/O Multi-Display) Microphone Circuit Between Microphone And Radio Receiver

  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
    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


    Corolla. Zre142 Aze141.Audio Video.Audio And Visual System (W/O Multi-Display).Audio And Visual System (W/O Multi-Display) Microphone Circuit Between Microphone And Radio Receiver

  1. Reconnect the O9 telephone microphone assembly connector.

  1. Reconnect the E114 radio receiver assembly connector.

  1. Turn the ignition switch to ACC.

  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

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (COROLLA_ZRE142 RM0000012A80DHX.html)

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

  1. Disconnect the E114 radio receiver assembly connector.

  1. Disconnect the O10 map light assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    E114-6 (SNS2) - O10-9 (SNS2)
    		Always
    		Below 1 Ω
    E114-5 (MIC+) - O10-11 (MI1+)
    		Always
    		Below 1 Ω
    E114-19 (MIC-) - O10-10 (MIC-)
    		Always
    		Below 1 Ω
    E114-4 (MACC) - O10-12 (ACC)
    		Always
    		Below 1 Ω
    E114-6 (SNS2) - Body ground
    		Always
    		10 kΩ or higher
    E114-5 (MIC+) - Body ground
    		Always
    		10 kΩ or higher
    E114-19 (MIC-) - Body ground
    		Always
    		10 kΩ or higher
    E114-4 (MACC) - Body ground
    		Always
    		10 kΩ or higher
    E114-18 (SGND) - Body ground
    		Always
    		10 kΩ or higher


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


7.INSPECT MAP LIGHT ASSEMBLY


    Corolla. Zre142 Aze141.Audio Video.Audio And Visual System (W/O Multi-Display).Audio And Visual System (W/O Multi-Display) Microphone Circuit Between Microphone And Radio Receiver

  1. Disconnect the O10 map light assembly connector.

  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)


NG
Go to step 9
OK


8.INSPECT MAP LIGHT ASSEMBLY


    Corolla. Zre142 Aze141.Audio Video.Audio And Visual System (W/O Multi-Display).Audio And Visual System (W/O Multi-Display) Microphone Circuit Between Microphone And Radio Receiver

  1. Reconnect the O10 map light assembly connector.

  1. Reconnect the E114 radio receiver assembly connector.

  1. Turn the ignition switch to ACC.

  1. Connect an oscilloscope to terminals 11 (MI1+) and 10 (MIC-) of the O10 map light 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 map light assembly is output
    		A
    A waveform synchronized with the voice input to the map light assembly is not output
    		B
Text in Illustration
*a
Component with harness connected
(Map Light Assembly)


B
Go to step 9
A

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (COROLLA_ZRE142 RM0000012A80DHX.html)

9.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