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.
- CHECK SOUND SIGNAL CIRCUITS FOR OPEN OR SHORT TO GROUND
- Turn ignition switch OFF.
- Disconnect BOSE speaker amp. connector B109 and center speaker connector.
- Check the continuity between BOSE speaker amp. connector B109 and center speaker connector.
BOSE speaker amp.
Center speaker
Continuity
Connector
Terminal
Connector
Terminal
B109
17
M301
1
Yes
18
2
- Check the continuity between BOSE speaker amp. connector B109 and ground.
BOSE speaker amp.
Continuity
Connector
Terminal
Ground
B109
17
-
No
18
Is the inspection result normal?
YES
GO TO 2 .
NO
Repair or replace harness or connectors.
- CHECK SOUND SIGNAL CIRCUITS FOR SHORT
Check the continuity between the terminals of BOSE speaker amp. connector B109 for the center speaker.
BOSE speaker amp.
Continuity
Connector
Terminal
B109
17
18
No
Is the inspection result normal?
YES
GO TO 3 .
NO
Repair or replace harness or connectors.
- CHECK SOUND SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY
- Turn ignition switch ON.
- Check the voltage between BOSE speaker amp. connector B109 and ground for the center speaker.
BOSE speaker amp.
Ground
Voltage
Connector
Terminal
B109
17
-
0 V
18
Is the inspection result normal?
YES
Replace center speaker. Refer to Removal and Installation .
NO
Repair or replace harness or connectors.