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 FUSE
- Turn ignition switch OFF.
- Check that the following fuses are not blown:
Power source
Fuse No.
Capacity
Battery
11
15 A
12
15 A
Ignition switch ACC
21
10 A
Is a fuse blown?
YES
Replace the blown fuse after repairing the affected circuit.
NO
GO TO 2 .
- CHECK BOSE SPEAKER AMP. BATTERY POWER SUPPLY
- Disconnect BOSE speaker amp. connector B110.
- Check the voltage between BOSE speaker amp. connector B110 and ground.
BOSE speaker amp.
Ground
Voltage
(Approx.)
Connector
Terminal
B110
10
(-)
Battery voltage
11
Is the inspection result normal?
YES
GO TO 3 .
NO
Repair or replace harness or connectors.
- CHECK BOSE SPEAKER AMP. ACCESSORY POWER SUPPLY
- Disconnect BOSE speaker amp. connector B149.
- Turn ignition switch to ACC.
- Check the voltage between BOSE speaker amp. connector B149 and ground.
BOSE speaker amp.
Ground
Voltage
(Approx.)
Connector
Terminal
B149
53
(-)
Battery voltage
Is the inspection result normal?
YES
GO TO 4 .
NO
Repair or replace harness or connectors.
- CHECK BOSE SPEAKER AMP. GROUND CIRCUIT
- Turn ignition switch OFF.
- Check the continuity between BOSE speaker amp. connector B110 and ground.
BOSE speaker amp.
Ground
Continuity
Connector
Terminal
B110
7
-
Yes
12
Is the inspection result normal?
YES
Inspection End.
NO
Repair or replace harness or connectors.