Nissan Maxima Service and Repair Manual: Communication signal circuit
SATELLITE RADIO TUNER
SATELLITE RADIO TUNER : Description
Communication signals are exchanged between the AV control unit and satellite
radio tuner using the communication
circuits.
SATELLITE RADIO TUNER : Diagnosis Procedure
1.CHECK HARNESS - 1

- Turn ignition switch OFF.
- Disconnect satellite radio tuner (factory installed) connector
B111 and AV control unit connector M153.
- Check continuity between satellite radio tuner (factory installed)
harness connector B111 (A) terminal 28 and AV control unit harness
connector M153 (B) terminal 28.
- Check continuity between satellite radio tuner (factory installed)
harness connector B111 (A) terminal 28 and ground.


2.CHECK HARNESS - 2

- Check continuity between satellite radio tuner (factory installed)
harness connector B111 (A) terminal 29 and AV control unit harness
connector M153 (B) terminal 29.
- Check continuity between satellite radio tuner (factory installed)
harness connector B111 (A) terminal 29 and ground.


3.CHECK HARNESS - 3

- Check continuity between satellite radio tuner (factory installed)
harness connector B111 (A) terminal 30 and AV control unit harness
connector M153 (B) terminal 30.
- Check continuity between satellite radio tuner (factory installed)
harness connector B111 (A) terminal 30 and ground.


4.CHECK REQ1 SIGNAL

- Connect satellite radio tuner (factory installed) connector and AV
control unit connector.
- Turn ignition switch to ACC.
- Check signal between satellite radio tuner (factory installed)
harness
connector B111 terminal 28 and ground with CONSULT or
oscilloscope

5.CHECK TXD SIGNAL

Check signal between satellite radio tuner (factory installed) harness
connector B111 terminal 29 and ground with CONSULT or oscilloscope

6.CHECK RXD SIGNAL

Check signal between satellite radio tuner (factory installed) harness
connector B111 terminal 30 and ground with CONSULT or oscilloscope.

Description
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Diagn ...
SATELLITE RADIO TUNER
SATELLITE RADIO TUNER : Description
Left and right channel audio signals are supplied from the satellite radio
tuner to the AV control unit through
the sound signal circuit ...
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