Diagnosis Procedure
WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
- CONNECTOR CHECK
Check the AV control unit and tweeter connectors for the following:
- Proper connection
- Damage
- Disconnected or loose terminals
Is the inspection result normal?
YES
GO TO 2 .
NO
Repair the terminals or connectors.
- CHECK TWEETER SIGNAL CIRCUIT CONTINUITY
- Disconnect AV control unit connector M160 and suspect tweeter connector.
- Check continuity between AV control unit connector M160 and suspect tweeter connector.
AV control unit
Tweeter
Continuity
Connector
Terminal
Connector
Terminal
M160
2
M143 (LH)
1
Yes
3
2
11
M144 (RH)
1
12
2
- Check continuity between AV control unit connector M160 and ground.
AV control unit
Ground
Continuity
Connector
Terminal
M160
2
-
No
3
11
12
Is the inspection result normal?
YES
GO TO 3 .
NO
Repair or replace harness or connectors.
- CHECK TWEETER SIGNAL
- Connect AV control unit connector M160 and suspect tweeter connector.
- Turn ignition switch to ON.
- Push AV control unit POWER switch.
- Check signal between AV control unit connector M160 and ground.
AV control unit connector M160
Condition
Reference value
(+)
(-)
Terminal
Terminal
2
3
Audio signal output
11
12
Is the inspection result normal?
YES
Replace tweeter. Refer to Removal and Installation .
NO
Replace AV control unit. Refer to Removal and Installation .