Diagnosis Procedure
WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK ANTENNA HARNESS CONNECTOR
- Turn ignition switch OFF.
- Visually check radio antenna and antenna feeder.
Is the inspection result normal?
YES
GO TO 2.
NO
Repair or replace malfunctioning parts.
- CHECK ANTENNA HARNESS CIRCUIT
- Disconnect AV control unit connector M45 and inline connector R203.
- Check continuity between AV control unit connector M45 and inline connector R203.
AV control unit
Inline
Continuity
Connector
Terminal
Connector
Terminal
M45
95
R203
2
Yes
- Check continuity between AV control unit connector M45 and ground.
AV control unit
Ground
Continuity
Connector
Terminal
M45
95
--
No
Is the inspection result normal?
YES
GO TO 3.
NO
Repair or replace malfunctioning parts.
- CHECK AV CONTROL UNIT VOLTAGE
- Turn ignition switch ON.
- Check the voltage between AV control unit and ground.
Terminals
Voltage
(Approx.)
(+)
(-)
AV control unit
Terminal
95
Ground
5.0 V
Is the inspection result normal?
YES
Replace AV control unit. Refer to Removal and Installation .
NO
Replace antenna. Refer to Location of Antennas .