Premium System

AUDIO

Satellite Radio Tuner Communication Circuit Inspection (Premium System)


1. CHECK HARNESS - 1

1.Turn ignition switch OFF.
2.Disconnect satellite radio tuner connector B56 and AV control unit connector M96.





3.Check continuity between satellite radio tuner harness connector B56 (A) terminal 28 and AV control unit harness connector
M96 (B) terminal 72.
Continuity should exist.
4.Check continuity between satellite radio tuner harness connector B56 (A) terminal 28 and ground.
Continuity should not exist.
OK or NG
OK- GO TO 2.
NG- Repair harness or connector.

2. CHECK HARNESS - 2






1.Check continuity between satellite radio tuner harness connector B56 (A) terminal 29 and AV control unit harness connector
M96 (B) terminal 73.
Continuity should exist.
2.Check continuity between satellite radio tuner harness connector B56 (A) terminal 29 and ground.
Continuity should not exist.
OK or NG
OK- GO TO 3.
NG- Repair harness or connector.

3. CHECK HARNESS - 3






1.Check continuity between satellite radio tuner harness connector B56 (A) terminal 30 and AV control unit harness connector
M96 (B) terminal 74.
Continuity should exist.
2.Check continuity between satellite radio tuner harness connector B56 (A) terminal 30 and ground.
Continuity should not exist.
OK or NG
OK- GO TO 4.
NG- Repair harness or connector.

4. CHECK REQ1 SIGNAL

1.Connect satellite radio tuner connector and AV control unit connector.
2.Turn ignition switch to ACC.





3.Check signal between satellite radio tuner harness connector
B56 terminal 28 and ground with CONSULT or oscilloscope.
28 - Ground: Refer to "Terminal and Reference Value for Satellite Radio Tuner".
OK or NG
OK- GO TO 5.
NG- Replace AV control unit. Without Navigation.

5. CHECK TXD SIGNAL






Check signal between satellite radio tuner harness connector B56
terminal 29 and ground with CONSULT or oscilloscope.
29 - Ground: Refer to "Terminal and Reference Value for Satellite Radio Tuner".
OK or NG
OK- GO TO 6.
NG- Replace AV control unit. Without Navigation.

6. CHECK RXD SIGNAL






Check signal between satellite radio tuner harness connector B56
terminal 30 and ground with CONSULT or oscilloscope.
30 - Ground: Refer to "Terminal and Reference Value for Satellite Radio Tuner".
OK or NG
OK- Replace satellite radio tuner. Without Navigation.
NG- Replace AV control unit. Without Navigation.