Navigation System Microphone Circuit Between Microphone And Navigation Receiver Assembly

Body Electrical. Camry. Acv40 Gsv40
Navigation. Camry. Acv40 Gsv40

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT NAVIGATION RECEIVER ASSEMBLY

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

INSPECT MICROPHONE

NAVIGATION SYSTEM - Microphone Circuit between Microphone and Navigation Receiver Assembly


DESCRIPTION

This circuit sends a microphone signal from the telephone microphone assembly to the navigation receiver assembly.
It also supplies power from the navigation receiver assembly to the telephone microphone assembly.

WIRING DIAGRAM


Camry. Acv40 Gsv40.Navigation.Navigation System.Navigation System Microphone Circuit Between Microphone And Navigation Receiver Assembly


INSPECTION PROCEDURE

1.INSPECT NAVIGATION RECEIVER ASSEMBLY


    Camry. Acv40 Gsv40.Navigation.Navigation System.Navigation System Microphone Circuit Between Microphone And Navigation Receiver Assembly

  1. Disconnect the navigation receiver assembly connector.

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

    Standard Voltage:
    Tester Connection
    		Condition
    		Specified Condition
    F24-5 (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
    F24-14 (SGND) - Body ground
    		Always
    		Below 1 Ω
    F24-13 (MIN-) - Body ground
    		Always
    		Below 1 Ω
    Text in Illustration
    *1
    		Component with harness connected
    (Navigation Receiver Assembly)


NG
REPLACE NAVIGATION RECEIVER ASSEMBLY (CAMRY_ACV40 RM0000026K700NX.html)
OK


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


    Camry. Acv40 Gsv40.Navigation.Navigation System.Navigation System Microphone Circuit Between Microphone And Navigation Receiver Assembly

  1. Disconnect the navigation receiver assembly connector.



    Camry. Acv40 Gsv40.Navigation.Navigation System.Navigation System Microphone Circuit Between Microphone And Navigation Receiver Assembly

  1. Disconnect the telephone microphone assembly connector.

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    F24-3 (SNS2) - Q13-4 (SNS2)
    		Always
    		Below 1 Ω
    F24-5 (MACC) - Q13-1 (ACC)
    		Always
    		Below 1 Ω
    F24-4 (MIN+) - Q13-3 (MI1+)
    		Always
    		Below 1 Ω
    F24-13 (MIN-) - Q13-5 (MIC-)
    		Always
    		Below 1 Ω
    F24-3 (SNS2) - Body ground
    		Always
    		10 kΩ or higher
    F24-5 (MACC) - Body ground
    		Always
    		10 kΩ or higher
    F24-4 (MIN+) - Body ground
    		Always
    		10 kΩ or higher
    F24-13 (MIN-) - Body ground
    		Always
    		10 kΩ or higher
    F24-14 (SGND) - Body ground
    		Always
    		10 kΩ or higher
    Text in Illustration
    *1
    		Front view of wire harness connector
    (to Navigation Receiver Assembly)
    *2
    		Front view of wire harness connector
    (to Telephone Microphone Assembly)


NG
REPAIR OR REPLACE HARNESS OR CONNECTOR
OK


3.INSPECT MICROPHONE


    Camry. Acv40 Gsv40.Navigation.Navigation System.Navigation System Microphone Circuit Between Microphone And Navigation Receiver Assembly

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

    Standard Resistance:
    Tester Connection
    		Condition
    		Specified Condition
    Q13-4 (SNS2) - Q13-5 (MIC-)
    		Always
    		Below 1 Ω
    Text in Illustration
    *1
    		Component without harness connected
    (Telephone Microphone Assembly)


NG
REPLACE TELEPHONE MICROPHONE ASSEMBLY (CAMRY_ACV40 RM0000026JY00LX.html)
OK

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE (CAMRY_ACV40 RM0000011BR045X.html)