— 21 —
What might seem to be a malfunction in your unit may
just be the result of slight misoperation or miswiring.
Before calling service, first check the following table
for possible problems.
General
?
The power does not turn ON.
01
✔
The fuse has blown.
☞
After checking for short circuits in the wires, replace the fuse with
one with the same rating.
✔
No ACC position on vehicle ignition.
02
☞
Connect the same wire to the ignition as the battery wire.
?
Nothing happens when the buttons are pressed.
04
✔
The computer chip in the unit is not functioning normally.
☞
Press the Reset button on the display unit (page 3).
?
No sound or sound is low.
52
✔
The O-N selection switch of the disc changer is not set properly.
☞
Set the O-N selection switch to "N" position.
✔
The radio volume is sets to the minimum level.
3
☞
Turn the radio volume up.
✔
The input/output wire or wiring harness is connected incorrectly.
55
☞
Connect the input/output wire or wiring harness correctly. See
"Connecting Wires to Terminals" (Page 18,19).
?
Sound distortion.
67
✔
The signal levels differ depending on sources.
☞
Change the Modulation level / Dynamic control setting. (Page 13)
?
Nothing appears on the display.
04
✔
The control output of the display unit is not connected properly.
☞
Connect the control output properly.
Sirius source
?
The Sirius mode cannot be selected.
2
✔
The Sirius connection wire is not connected.
☞
Use the Sirius connection wire to connect the control unit and the
Sirius satellite radio tuner.
✔
Connect the power supply of the Sirius satellite radio tuner.
53
☞
Connect the battery wire and ground wire to the Sirius satellite
radio tuner.
✔
The Sirius satellite radio tuner is not connected properly.
55
☞
Connect the Sirius satellite radio tuner directly to this unit.
?
No sound can be heard, or the volume is low.
58
✔
The input/output wires or wiring harness are connected incorrectly.
☞
Reconnect the input/output wires and/or the wiring harness
correctly.
?
No broadcast can be received
2
✔
The Sirius antenna is not connected.
☞
Connect it properly.
✔
No subscription is established.
53
☞
Subscribe to SIRIUS.
?
No sound is heard even though the information concerning the
Sirius satellite radio tuner is displayed.
67
✔
The radio volume is sets to the minimum level.
☞
Turn the radio volume up.
✔
The microcomputer does not function correctly.
68
☞
Press the Reset button of the display unit.(Page 3)
✔
The system is not connected properly.
69
☞
Connect the system properly. See <Connecting Wires to
Terminals>. (Page 18,19)
Troubleshooting Guide
KCA-R71FM_U.S_r3 04.7.8 3:58 PM Page 21
