With BOSE CENTERPOINT Audio System
- CHECK AV COMMUNICATION LOW CIRCUIT CONTINUITY 1
- Turn ignition switch OFF.
- Disconnect Bose speaker amp. connector B120, data link connector M22, combination meter M24, display control unit M92, multifunction switch M98, TCU M47, around view monitor control unit M96 and video distributor connector M156.
- Check continuity between Bose speaker amp. connector B120 and video distributor connector M156.
Bose speaker amp.
Video distributor
Continuity
Connector
Terminal
Connector
Terminal
B120
14
M156
40
Yes
- Check continuity between Bose speaker amp. connector B120 and ground.
Bose speaker amp.
Ground
Continuity
Connector
Terminal
B120
14
--
No
Is the inspection result normal?
YES
GO TO 2.
NO
Repair or replace harness or connectors.
- CHECK AV COMMUNICATION LOW CIRCUIT CONTINUITY 2
- Turn ignition switch OFF.
- Disconnect AV control unit connector M164.
- Check continuity between Bose speaker amp. connector B120 and AV control unit connector M164
Bose speaker amp.
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
B120
15
M164
67
Yes
- Check continuity between Bose speaker amp. connector B120 and ground.
Bose speaker amp.
Ground
Continuity
Connector
Terminal
B120
15
--
No
Is the inspection result normal?
YES
GO TO 3.
NO
Repair or replace harness or connectors.
- CHECK AV COMMUNICATION HIGH CIRCUIT CONTINUITY 1
- Check continuity between Bose speaker amp. connector B120 and video distributor connector M156.
Bose speaker amp.
Video distributor
Continuity
Connector
Terminal
Connector
Terminal
B120
34
M156
20
Yes
- Check continuity between Bose speaker amp. connector B120 and ground.
Bose speaker amp.
Ground
Continuity
Connector
Terminal
B120
34
--
No
Is the inspection result normal?
YES
GO TO 4.
NO
Repair or replace harness or connectors.
- Check continuity between Bose speaker amp. connector B120 and video distributor connector M156.
- CHECK AV COMMUNICATION HIGH CIRCUIT CONTINUITY 2
- Check continuity between Bose speaker amp. connector B120 and AV control unit connector M164.
Bose speaker amp.
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
B120
35
M164
87
Yes
- Check continuity between Bose speaker amp. connector B120 and ground.
Bose speaker amp.
Ground
Continuity
Connector
Terminal
B120
35
--
No
Is the inspection result normal?
YES
Replace the Bose speaker amp. Refer to Removal and Installation .
NO
Repair or replace harness or connectors.
- Check continuity between Bose speaker amp. connector B120 and AV control unit connector M164.
- CHECK AV COMMUNICATION LOW CIRCUIT CONTINUITY 1
- Turn ignition switch OFF.
- Disconnect Bose speaker amp. connector B120, combination meter M24, display control unit M92, multifunction switch M98, TCU M47, around view monitor control unit M96 and video distributor connector M156.
- Check continuity between Bose speaker amp. connector B120 and video distributor connector M156.
Bose speaker amp.
Video distributor
Continuity
Connector
Terminal
Connector
Terminal
B120
14
M156
40
Yes
- Check continuity between Bose speaker amp. connector B120 and ground.
Bose speaker amp.
Ground
Continuity
Connector
Terminal
B120
14
--
No
Is the inspection result normal?
YES
GO TO 2.
NO
Repair or replace harness or connectors.
- CHECK AV COMMUNICATION LOW CIRCUIT CONTINUITY 2
- Turn ignition switch OFF.
- Disconnect AV control unit connector M164.
- Check continuity between Bose speaker amp. connector B120 and AV control unit connector M164
Bose speaker amp.
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
B120
15
M164
67
Yes
- Check continuity between Bose speaker amp. connector B120 and ground.
Bose speaker amp.
Ground
Continuity
Connector
Terminal
B120
15
--
No
Is the inspection result normal?
YES
GO TO 3.
NO
Repair or replace harness or connectors.
- CHECK AV COMMUNICATION HIGH CIRCUIT CONTINUITY 1
- Check continuity between Bose speaker amp. connector B120 and video distributor connector M156.
Bose speaker amp.
Video distributor
Continuity
Connector
Terminal
Connector
Terminal
B120
34
M156
20
Yes
- Check continuity between Bose speaker amp. connector B120 and ground.
Bose speaker amp.
Ground
Continuity
Connector
Terminal
B120
34
--
No
Is the inspection result normal?
YES
GO TO 4..
NO
Repair or replace harness or connectors.
- Check continuity between Bose speaker amp. connector B120 and video distributor connector M156.
- CHECK AV COMMUNICATION HIGH CIRCUIT CONTINUITY 2
- Check continuity between Bose speaker amp. connector B120 and AV control unit connector M164.
Bose speaker amp.
AV control unit
Continuity
Connector
Terminal
Connector
Terminal
B120
35
M164
87
Yes
- Check continuity between Bose speaker amp. connector B120 and ground.
Bose speaker amp.
Ground
Continuity
Connector
Terminal
B120
35
--
No
Is the inspection result normal?
YES
Replace the Bose speaker amp. Refer to Removal and Installation .
NO
Repair or replace harness or connectors.
- Check continuity between Bose speaker amp. connector B120 and AV control unit connector M164.