Bose Audio Without Navigation

RGB SYNCHRONIZING SIGNAL CIRCUIT





Description
Transmit the RGB synchronizing signal to the display unit so as to synchronize the RGB image displayed with
AV control unit.




Diagnosis Procedure
Regarding Wiring Diagram information, Bose Audio Without Navigation.
1.CHECK CONTINUITY RGB SYNCHRONIZING SIGNAL CIRCUIT





1. Turn ignition switch OFF.
2. Disconnect display unit connector M93 and AV control unit connector M171.
3. Check continuity between display unit harness connector M93
(A) terminal 19 and AV control unit harness connector M171 (B) terminal 41.





4. Check continuity between display unit harness connector M93
(A) terminal 19 and ground.





Are continuity results as specified?
YES - GO TO 2.
NO - Repair harness or connector.
2.CHECK RGB SYNCHRONIZING SIGNAL





1. Connect display unit connector M93 and AV control unit connector M171.
2. Turn ignition switch ON.
3. Check signal between display unit harness connector M93 terminal 19 and ground.






Are voltage readings as specified?
YES - Replace display unit. Removal And Installation Bose Audio Without Navigation.
NO - Replace AV control unit. Removal And Installation Bose Audio Without Navigation.