Reference Values
TERMINAL LAYOUT

PHYSICAL VALUES



Bose speaker AMP
Wiring diagramVacuum lines
Inspection
VISUAL INSPECTION
Check for improper assembly, damage and deterioration. Replace as necessary.
CHECK VALVE INSPECTION
Airtightness Inspection
Use a suitable tool to check the built-in check valve. Replace the
vacuum hose with the built-in check valve as an assembly if the vacuu ...
Power supply routing circuit
Wiring Diagram -Battery Power Supply -
Wiring Diagram -Accessory Power Supply -
Wiring Diagram -Ignition Power Supply -
Fuse
If fuse is blown, be sure to eliminate cause of malfunction before
installing new fuse.
U ...
Power supply and ground circuit
Diagnosis Procedure
1. CHECK FUSE AND FUSIBLE LINK
Check if the following BCM fuses or fusible link are blown
2. CHECK POWER SUPPLY CIRCUIT
Turn ignition switch OFF.
Disconnect BCM.
Check voltage between BCM harness connector and ground.
3. CHECK GROUND CIRCUIT
Check continuit ...