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Audio And Visual System (w/o Daytime Running Light)





AUDIO / VIDEO: AUDIO AND VISUAL SYSTEM (w/o Daytime Running Light): B1579: Voice Recognition Microphone Disconnected
B1579 - Voice Recognition Microphone Disconnected

DESCRIPTION

The navigation ECU sub-assembly and map light assembly (telephone microphone assembly) are connected to each other using the microphone connection detection signal lines.

This DTC is stored when a microphone connection detection signal line is disconnected.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT NAVIGATION ECU SUB-ASSEMBLY

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





Standard Resistance:





Text in Illustration





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

2. CHECK HARNESS AND CONNECTOR (NAVIGATION ECU SUB-ASSEMBLY - MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY))

(a) Disconnect the navigation ECU sub-assembly connector.

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

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

Standard Resistance:

w/o Sliding Roof





w/ Sliding Roof





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

3. INSPECT MAP LIGHT ASSEMBLY (TELEPHONE MICROPHONE ASSEMBLY)

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





Standard Resistance:

w/o Sliding Roof





w/ Sliding Roof





Text in Illustration





NG -- REPLACE TELEPHONE MICROPHONE ASSEMBLY

OK -- REPLACE NAVIGATION ECU SUB-ASSEMBLY Removal

4. REPLACE TELEPHONE MICROPHONE ASSEMBLY

(a) Replace the telephone microphone assembly (w/ Sliding Roof) Removal.

(b) Replace the telephone microphone assembly (w/o Sliding Roof) Removal.

(c) Clear the DTCs Audio And Visual System (w/o Daytime Running Light).

(d) Recheck for DTCs and check if the same DTC is output again.

OK:

No DTCs are output.

NG -- REPLACE MAP LIGHT ASSEMBLY Removal

OK -- END