Honda Accord 2008 Manual page 2518

07/11/02 09:49:47 61TA0000_230_0074
4. Remove the audio unit with navigation system
(see page 23-109), without navigation system
(see page 23-111), and disconnect audio unit
connector A (24P).
NOTE: Eject all the CDs before removing the audio
unit and CD changer to prevent damaging the CD
player's load mechanism.
5. Turn the ignition switch to ON (II).
6. Test-drive the vehicle and have an assistant
measure the voltage at audio unit connector A
(24P) No. 15 terminal.
NOTE: Some volt meters may show an average of
2.5 V, and others may show a constant voltage,
depending on the meter's measurement speed.
＊１５
Is there a 0 5 V pulse?
YES
navigation system (see page 23-109), without
navigation system (see page 23-111) and recheck. If
the symptom/indication goes away, replace the
audio unit with navigation system (see page
23-109), without navigation system (see page
23-111).
−
NO
the audio unit connector A (24P) No. 15 terminal
and the ECM/PCM connector A (49P) No. 30
terminal. If no opens are found, substitute a known-
good ECM/PCM (see page 11-7) and recheck. If the
symptom/indicated goes away, replace the original
ECM/PCM (see page 11-232).
AUDIO UNIT CONNECTOR A (24P)
VSP (BLU)
Wire side of female terminals
−
− Substitute a known-good audio unit with
Repair opens or shorts in the wire between
Volume is too high or too low when driving
at freeway speeds
NOTE:
• Check the vehicle battery condition first.
• Check the connectors for poor connections or loose
terminals.
1. Test-drive the vehicle at highway speeds and
monitor volume level.
Is the volume level too high, or too low?
YES − Go to step 2.
−
NO Intermittent failure, the system is OK at this
time.
2. Change SVC mode setting in sound adjustment set-
up to Mid and retest.
Is the volume level still too high or too low?
YES − Substitute a known-good audio unit with
navigation system (see page 23-109), without
navigation system (see page 23-111) and recheck. If
the symptom/indication goes away, replace the
audio unit with navigation system (see page
23-109), without navigation system (see page
23-111).
NO − Improper SVC setting for customer's sound
taste.
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