Microphone Circuit Between Microphone and Navigation Receiver Assembly

NAVIGATION / MULTI INFO DISPLAY: NAVIGATION SYSTEM (w/ USB Audio System): Microphone Circuit between Microphone and Navigation Receiver Assembly
- Microphone Circuit between Microphone and Navigation Receiver Assembly

DESCRIPTION

* Using this circuit, the navigation receiver assembly sends power to the roof console box assembly (telephone microphone assembly), and the roof console box assembly sends microphone signals to the navigation receiver assembly (w/o Manual (SOS) Switch ).

* Using this circuit, the telematics transceiver sends power to the roof console box assembly (telephone microphone assembly), and the roof console box assembly (telephone microphone assembly) sends microphone signals to the navigation receiver assembly via the telematics transceiver. The navigation receiver assembly and roof console box assembly (telephone microphone assembly) are connected to each other using the microphone connection detection signal lines (w/ Manual (SOS) Switch ).

WIRING DIAGRAM





INSPECTION PROCEDURE

NOTICE:
If the telematics transceiver has been replaced, perform the Activate DCM procedure using the Techstream DCM Activation.

PROCEDURE

1. CONFIRM MODEL

(a) Choose the model to be inspected.

Result





B -- INSPECT NAVIGATION RECEIVER ASSEMBLY
A -- Continue to next step.

2. INSPECT NAVIGATION RECEIVER ASSEMBLY

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





Standard Voltage:





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

Standard Resistance:





Text in Illustration





NG -- REPLACE NAVIGATION RECEIVER ASSEMBLY Removal
OK -- Continue to next step.

3. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER - ROOF CONSOLE BOX)

(a) Disconnect the D54 navigation receiver assembly connector.

(b) Disconnect the T5 roof console box assembly connector.

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

Standard Resistance:





(d) Proceed to the next step based on the inspection result.

Result





B -- INSPECT ROOF CONSOLE BOX ASSEMBLY

A -- REPAIR OR REPLACE HARNESS OR CONNECTOR

4. INSPECT NAVIGATION RECEIVER ASSEMBLY

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





Standard Resistance:





Text in Illustration





NG -- REPLACE NAVIGATION RECEIVER ASSEMBLY Removal
OK -- Continue to next step.

5. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER - ROOF CONSOLE BOX)

(a) Disconnect the D54 navigation receiver assembly connector.

(b) Disconnect the T5 roof console box assembly connector.

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

6. CHECK HARNESS AND CONNECTOR (NAVIGATION RECEIVER - TELEMATICS TRANSCEIVER)

(a) Disconnect the D54 navigation receiver assembly connector.

(b) Disconnect the D73 telematics transceiver connector.

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

7. CHECK HARNESS AND CONNECTOR (TELEMATICS TRANSCEIVER - ROOF CONSOLE BOX)

(a) Disconnect the D73 telematics transceiver connector.

(b) Disconnect the T5 roof console box assembly connector.

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

Standard Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

8. INSPECT TELEMATICS TRANSCEIVER

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





Standard Voltage:





Text in Illustration





NG -- REPLACE TELEMATICS TRANSCEIVER Removal
OK -- Continue to next step.

9. INSPECT ROOF CONSOLE BOX ASSEMBLY

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





Standard Resistance:





Text in Illustration





NG -- REPLACE ROOF CONSOLE BOX ASSEMBLY Removal
OK -- Continue to next step.

10. INSPECT ROOF CONSOLE BOX ASSEMBLY

(a) Reconnect the D54 navigation receiver assembly connector.

(b) Reconnect the D73 telematics transceiver connector (w/ Manual(SOS) Switch ).

(c) Reconnect the T5 roof console box assembly connector.





(d) Turn the ignition switch to ACC.

(e) Connect an oscilloscope to terminals 13 (MIC+) and 12 (MIC-) of the T5 roof console box assembly connector.

(f) Check the waveform of the telephone microphone assembly using an oscilloscope.

Result





Text in Illustration





B -- REPLACE ROOF CONSOLE BOX ASSEMBLY Removal

A -- PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Problem Symptoms Table