Honda Accord 2008 Manual page 2523

07/11/02 09:49:49 61TA0000_230_0079
Audio System
Symptom Troubleshooting (cont'd)
8. Check for continuity between audio unit connector
A (24P) terminal No. 1 and gauge control module
32P connector terminal No. 1.
＊１３
Is there continuity?
YES
NO −
control module and the audio unit.
9. Turn the ignition switch to ON (II).
10. With the headlight switch still on, measure the
voltage between audio unit connector A (24P)
terminal No. 13 and body ground.
＊１４
Is there battery voltage?
YES
connector A (24P). If all connections are OK,
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
original audio unit with navigation system
(see page 23-109), without navigation system
(see page 23-111). If the symptom is still present,
substitute a known-good audio switch panel
(see page 23-112) and recheck. If the symptom/
indication goes away, replace the original audio
switch panel (see page 23-112).
−
NO
passenger's under-dash fuse/relay box and audio
unit.
23-78 23-78
AUDIO UNIT CONNECTOR A (24P)
Wire side of female terminals
ILL − BULB
(RED)
GAUGE CONTROL MODULE 32P CONNECTOR
Wire side of female terminals
− Go to step 9.
Repair open in the wire between the gauge
AUDIO UNIT CONNECTOR A (24P)
ILL ＋ (GRY)
Wire side of female terminals
− Check the connections at the audio unit
Repair open in the wire between the
Audio unit button illumination does not
work (Except 1 CD type)
NOTE:
• Check the vehicle battery condition first.
• Check the connectors for poor connections or loose
terminals.
1. Turn the ignition switch to ON (II).
2. Turn the combination lighting switch to the parking
light position.
3. Check the illumination of the audio unit buttons.
Are the buttons illuminated?
YES − Intermittent problem; the audio unit is OK at
this time.
−
NO Go to step 4.
4. Check the illumination of several other buttons not
related to the audio system.
Are the buttons illuminated?
−
YES Check for B-CAN DTCs (communication BUS
Line Error) with the HDS and go to the indicated
DTS's troubleshooting. If no DTCs or
communication bus line errors are found,
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
original audio unit with navigation system
(see page 23-109), without navigation system
(see page 23-111).
−
NO Troubleshoot the interior lights. Start by
checking the No. 6 (7.5 A) fuse in the passenger's
under-dash fuse/relay box. If the fuse is OK, check
for an open in the wire between the passenger's
under-dash fuse/relay box and audio unit.
ＴＡ０８Ａ００Ｊ１０３００００００００ＦＡＡＴ１６