Honda Accord 2008 Manual page 2664

07/11/02 10:05:00 61TA0000_230_0220
Symptom Troubleshooting
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Diagnostic Test: Self-Diagnosis Mode
NOTE:
• Check if button has been pressed, causing the
display to turn off (see owner's manual for more
information).
• Check the connectors for poor connections or loose
terminals.
• Before troubleshooting, make sure you have the anti-
theft code for the navigation system.
• Make sure that the correct DVD color and version are
installed.
• Inspect the DVD for dirt or damage.
• Check any official Honda service website for more
service information about the navigation system.
1. Check the No. 15 (10 A) fuse in the under-hood
fuse/relay box and No. 18 (7.5 A) fuse in the driver's
under-dash fuse/relay box, and reinstall the fuses if
they are OK.
Are the f uses OK ?
YES − Go to step 2.
−
NO Replace the fuse and recheck.
2. Turn the ignition switch to ACCESSORY (I).
3. Operate the radio and listen to the audio.
Can you hear the audio?
YES − Go to step 4.
NO − Check the ACC circuit or refer to the audio
system troubleshooting.
4. Turn the ignition switch to ON (II).
5. Measure the voltage between body ground and
navigation unit connector A (8P) terminals No. 1
and No. 2 individually.
NAVIGATION UNIT CONNETCOR A (8P)
＋ B (GRN) ACC (PUR)
Wire side of female terminals
Is there battery voltage?
YES − Go to step 6.
− ＋
NO If the B wire does not have voltage, repair
an open in the wire between the under-hood fuse
relay box and the navigation unit. If the ACC wire
does not have voltage, repair open in the wire
between the under-dash fuse/relay box and the
navigation unit.
6. Turn the ignition switch to LOCK (0).
7. Disconnect navigation unit connector A (8P).
8. Check for continuity between navigation unit
connector A (8P) terminal No. 4 and body ground.
NAVIGATION UNIT CONNETCOR A (8P)
GND (BLK)
Wire side of female terminals
Is there continuity?
YES − Go to step 9.
−
NO Repair open in the wire between the
navigation unit and body ground (G651) 4-door
(see page 22-46) 2-door (see page 22-48).
ＴＡ０８ＡＮ１Ｊ３６１００００００００ＦＡＡＴ０９
＊０１
＊０２
(cont'd)
23-219