12
English
M502
5. TROUBLE SHOOTING
Problem
Cause
Measure
Unit can not
power on.
Unit fuse blown.
Replace with new fuse of correct rating.
Car battery fuse blown.
Replace with new fuse of correct rating.
Unit can not
power on.
Nothing happens
when buttons are
pressed.
Display is not
accurate.
The microprocessor has
malfunctioned due to noise, etc.
Turn off the power.
Press the [RESET] button with a thin rod.
Note:
When the [RESET]
button is pressed, turn off
the ACC power.*
* When the [RESET] button is pressed,
frequencies of radio stations, titles, etc. stored in
memory are cleared.
No/low audio
output.
Improper audio output connection. Check wiring and correct.
Volume set too low.
Increase volume level.
Speakers damaged.
Replace speakers.
Heavily biased volume balance.
Adjust the channel balance to center position.
Speaker wiring is in contact with
metal part of car.
Insulate all speaker wiring connections.
Poor sound quality
or distortion.
Speaker power rating does not
match unit.
Replace speakers.
Wrong connections.
Check wiring and correct.
Speaker is shorted.
Check wiring and correct.
Unit resets itself
when engine is off.
Incorrect connection between
ACC and Battery.
Check wiring and correct.
USB Devices
Problem
Cause
Measure
USB device cannot
be inserted.
The USB device has been
inserted with wrong direction.
Reversing the connection direction of the USB
device, try it again.
The USB connector is broken.
Replace with a new USB device.
USB device is not
recognized.
The USB device is damaged.
Disconnect the USB device and reconnect. If
the device is still not recognized, try replacing
with a different USB device.
Connectors are loose.
No sound heard
with the display “
No
File
” shown.
No MP3/WMA file is stored in
the USB device.
Store these files properly in the USB device.
Sound skips or is
noisy.
MP3/WMA files are not encoded
properly.
Use MP3/WMA files encoded properly.
GENERAL
Bluetooth
Problem
Cause
Measure
C a n n o t p a i r t h e
Bluetooth enabled
device with the car
audio system.
The device does not support the
profiles required for the system.
Use another device to connect.
The Bluetooth function of the
device is not enabled.
Refer to the user manual of the device for how to
enable the function.
The audio quality
is poor after
connection with a
Bluetooth-enabled
device.
The internal microphone gain is
not set correctly.
Adjust the gain of the internal microphone in
System Setup.
The external microphone is
not set correctly nor properly
positioned.
Adjust the gain and position of the external
microphone.
For example, stick the microphone onto the
dashboard so it is close to the driver.
SiriusXM Advisory Messages
Message
Description
CHEK TUNER Check the SiriusXM tuner connection on the back of the unit to ensure that its correctly
connected.
CHK ANTENA
Ensure the SiriusXM antenna cable is connected to the SiriusXM tuner correctly.
Check the SiriusXM antenna wire for breaks or sharp bends. Replace the antenna if
necessary.
Press RESET located….. If the message remains, the antenna may have been damaged.
NO SIGNAL
The vehicle must be outside, and the antenna must have a clear view of the southern sky.
The magnetic antenna must be mounted on the outside of the vehicle for the best reception.
CHAN UNSUB This channel is not included in your SiriusXM subscription plan.
Call 1-800-XM-RADIO (1-800-967-2346) to subscribe.
CH UNAVAIL
This channel is not a valid SiriusXM channel.
The channel number has been entered incorrectly, or the channel was removed from the
SiriusXM channel lineup
CH LOCKED
The selected channel has been locked by the parental controls, or a mature channel has
been selected.
A prompt to enter the unlock code will appear. Enter the unlock code as described on
page 8.
SUBSCRIPTN
UPDATED
An update to your SiriusXM subscription has been received by the SiriusXM tuner. Press
any button to continue.
6. ERROR DISPLAYS
Display
Cause
Measure
ERROR 2
Do not support iPod & iPhone.
Change another device.
* The head unit will return to
RADIO
mode.
If an error occurs, one of the following displays is displayed.
Take the measures described below to solve the problem.
If an error display other than the ones described above appears, press the
[RESET]
button. If the
problem persists, turn off the power and consult your store of purchase.
* When the
[RESET]
button is pressed, frequencies of radio stations, titles, etc. stored in memory
are cleared.
