Request Signal Circuit (SAT)

REQUEST SIGNAL CIRCUIT (SAT


Description

Request signal transmits the signal to recognize the connection of satellite radio tuner from satellite radio tuner to AV control unit.




REQUEST SIGNAL CIRCUIT (SAT


Diagnosis Procedure

1.CHECK CONTINUITY REQUEST SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect satellite radio tuner connector and AV control unit connector.
3. Check continuity between satellite radio tuner unit harness connector and AV control unit harness connector.





4. Check continuity between satellite radio tuner harness connector and ground.





Is the inspection result normal?
YES - GO TO 2.
NO - Repair harness or connector.
2.CHECK COMMUNICATION SIGNAL
1. Connect satellite radio tuner connector and AV control unit connector.
2. Turn ignition switch ON.
3. Check signal between satellite radio tuner harness connector and ground.





Is the inspection result normal?
YES - Replace AV control unit.
NO - Replace satellite radio tuner.