1. Disconnect the negative battery cable..
2. Disconnect the connector..
3. Verify the resistance between bass-box terminals.

If not within the specification, replace the bass-box.

0.9—1.1 ohms
Auxiliary Jack/Usb Port Removal/Installation
Bass Box Removal/InstallationPicture Quality Adjustment
WARNING
Always adjust the picture quality of the rear view monitor while the
vehicle is stopped:
Do not adjust the picture quality of the rear view monitor while driving
the vehicle.
Adjusting the picture quality of the rear view monitor such as
brightness, contrast, colo ...
Oil Pan Removal/Installation [Mzr 2.0, Mzr 2.5]
WARNING:
Hot engines and engine oil can cause severe burns. Turn off the engine and
wait until it and the engine oil have cooled.
A vehicle that is lifted but not securely supported on safety stands is dangerous.
It can slip or fall, causing death or serious injury. Never work ...
Battery Runs Out
Jump-starting is dangerous if done incorrectly. So follow the procedure
carefully. If you
feel unsure about jump-starting, we strongly recommend that you have a competent
service
technician do the work.
WARNING
Follow These Precautions Carefully:
To ensure safe and correct handl ...