Honda Civic. Manual — part 129
Is the audio unit OFF?
YES -Operation is normal.
NO -Go to step 3.
3. Turn the ignition switch to LOCK (0).
4. Remove the audio unit (see AUDIO UNIT REMOVAL/INSTALLATION).
5. Measure the voltage between audio unit connector A (17P) terminal No. 14 and
body ground.
Fig. 49: Measuring Voltage Between Audio Unit A (17P) Connector
Terminal And Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there voltage?
YES -Check for short to power on PUR wire.
NO -Replace the audio unit (see AUDIO UNIT
REMOVAL/INSTALLATION).
NO SOUND IS HEARD FROM SPEAKER(S) (DISPLAY IS NORMAL) (WITH NAVIGATION)
NOTE:
Check the vehicle battery condition first.
Check the connectors for poor connections or loose
terminals.
Set the fader and balance positions to the center.
2008 Honda Civic LX
2006-08 ACCESSORIES & EQUIPMENT Audio System - Civic (Except Hybrid)
1. Turn the ignition switch to ON (II).
2. Check for sound in each mode (AM, FM, XM, and CD).
Is the sound OK in each mode?
YES -Intermittent failure. The system is OK at this time. Check for loose
connections at the navigation unit and speaker(s).
NO -Go to step 3.
3. Check that the volume button is not set to the MIN level.
Is it at the MIN level?
YES -Raise the volume level, and recheck the function.
NO -Go to step 4.
4. On the steering wheel, check the navigation TALK command.
Is the navigation TALK command function set?
YES -Cancel the navigation TALK command by pressing the navigation
BACK button, then recheck the function.
NO -Go to step 5.
5. Check to see if there is a specific speaker that has no sound.
Do any or all of the speakers fail to sound?
YES -Speaker(s) failed the test:
If at least one speaker is OK, go to step 6.
If all speakers fail to sound:
With premium sound system: Go to step 14.
Without premium sound system: Go to step 9.
2008 Honda Civic LX
2006-08 ACCESSORIES & EQUIPMENT Audio System - Civic (Except Hybrid)
NO -Speakers all work, but sound quality is poor in step 1.
If sound is poor only with XM radio, or the XM radio does not function,
go to POOR OR NO SOUND WITH XM RADIO .
If the sound is poor only with AM or FM, go to POOR AM OR FM
RADIO RECEPTION OR INTERFERENCE .
If the sound is poor only with disc.
Try several known- good tapes/disc in the navigation unit.
If the sound quality is normal, the original disc is faulty.
If the sound quality is still poor, replace the navigation unit.
If the sound is poor in all modes, go to SOUND QUALITY
DIAGNOSIS .
6. Turn the ignition switch to LOCK (0).
7. Remove the speaker(s) with no sound (see SPEAKER REPLACEMENT),
and disconnect its connector.
8. Check the speaker 2P connector for a loose or poor connection.
Reconnect the speaker 2P connector and recheck the symptom; does it still
fail?
YES -Go to step 9.
NO -Operation is normal.
9. Make sure the ignition switch is in LOCK (0).
10. Measure the resistance between the (+) and (-) terminals of the speaker
connector.
Is there about 4 ohms?
YES -
With premium sound system: Go to step 20.
Without premium sound system: Go to step 11.
2008 Honda Civic LX
2006-08 ACCESSORIES & EQUIPMENT Audio System - Civic (Except Hybrid)
NO -Faulty speaker(s).
11. Remove the navigation unit (see NAVIGATION UNIT
REMOVAL/INSTALLATION ). Disconnect navigation unit connector A
(17P).
12. Measure the resistance between the following terminals of navigation unit
connector A (17P) according to the table.
SPEAKER TERMINALS REFERENCE
Fig. 50: Measuring Resistance Between Navigation Unit A (17P)
Connector Terminals
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there about 4 ohms?
NOTE:
Eject all the discs before removing the navigation unit
to prevent damaging the CD player's load mechanism.
Speaker
Terminal Wire color
Driver's door speaker, Left tweeter
A12 (+)
LT GRN
A3 (-)
PNK
Front passenger's door speaker, Right tweeter
A15 (+)
GRY
A7 (-)
BRN
Left rear speaker
A11 (+)
YEL
A2 (-)
BRN
Right rear speaker
A16 (+)
BLU
A8 (-)
ORN
2008 Honda Civic LX
2006-08 ACCESSORIES & EQUIPMENT Audio System - Civic (Except Hybrid)
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