Bose Audio

IMAGE SWITCH SIGNAL CIRCUIT

Description

The AV switch signal is output to around view monitor control unit when the "FMAM" switch, "DISC" switch, or "AUX" switch of audio fascia switch is pressed.


Diagnosis Procedure


1. CHECK CONTINUITY IMAGE SWITCH SIGNAL CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect NAVI control unit connector and around view monitor control unit connector.
3.Check continuity between NAVI control unit harness connector and around view monitor control unit harness connector.





4.Check continuity between NAVI control unit harness connector and ground.





Is the inspection result normal?
YES- GO TO 2.
NO- Repair harness or connector.

2. CHECK AROUND VIEW MONITOR CONTROL UNIT VOLTAGE

1.Connect NAVI control unit connector and around view monitor control unit connector.
2.Turn ignition switch ON.
3.Check voltage between around view monitor control unit harness connector and ground.





Is the inspection result normal?
YES- Replace around view monitor control unit. Refer to "Removal and Installation" Bose Audio.
NO- Replace NAVI control unit. Refer to "Removal and Installation" Bose Audio.