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