Honda Odyssey 2004. Manual — part 509
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22-364
Navigation System
Circuit Diagram
REVERSE
RELAY
INTR LIGHT
(10A) FUSE
R SIG
DISPLAY UNIT
AUDIO UNIT
MUTE
LF
SP
GND
ILL
ACC
RF
SP
ACC RELAY
B
ILL
G SIG
B SIG
C SIG
GND SIG
SH SIG
DISP BUS (
)
DISP BUS (
)
SH DISP BUS
RG R
GND RG
DRIVER’S UNDER-DASH
FUSE/RELAY BOX
PASSENGER’S UNDER-DASH
FUSE/RELAY BOX
MULTIPLEX CONTROL
UNIT (DRIVER’S)
LF
SPEAKER
RF
SPEAKER
RG L
CLIMATE CONTROL
UNIT
CLK2
ACI
ACO
G501
GRN/BLK
WHT/RED
WHT/BLU
RED/BLK
RED
BLK
WHT/RED
WHT/BLU
RED/BLK
WHT
RED
YEL
GRN
BLU
BRN/BLK
BLU/GRN
ORN/BLU
LT BLU
WHT/BLK
BLK
G503
BLU/GRN
ORN/BLU
ORN
B11
B2
B1
B8
B9
B18
B19
B17
B20
B5
B15
B14
B10
B12
14
12
13
11
A2
A3
A4
DISPLAY UNIT CONNECTOR B (20P)
AUDIO UNIT CONNECTOR
Wire side of female terminals
DISPLAY UNIT
CONNECTOR A (5P)
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22-365
C5
C3
C2
C1
B8
A4
A5
A10
A11
A12
A6
B7
B15
B16
C7
C8
B3
B1
B9
B10
B2
C6
C4
1
2
BACK LT
R SIG
DIAG P
MUTE
NAVIGATION UNIT
A.C.G.
SH RG
RG R
RG L
GND RG
DIAG N
G SIG
B SIG
C SIG
GND SIG
SH SIG
DISP BUS (
)
DISP BUS (
)
SH DISP BUS
CHG
ACC
B
ILL
NAVIGATION SERVICE
CHECK CONNECTOR
GPS
VSP
GPS ANTENNA
GPS ANTENNA
CONNECTOR
GND
GND GPS
VEHICLE
SPEED
PULSE (VSP)
SENSOR (’00
’01)
PCM (’02
’04)
GPS
GND GPS
NAVIGATION UNIT CONNECTORS
NAVIGATION SERVICE
CHECK CONNECTOR
GPS ANTENNA
CONNECTOR
Wire side of female terminals
CONNECTOR A (12P)
CONNECTOR C (8P)
CONNECTOR B (16P)
G501
BLU/WHT
BLK
GRN/BLK
WHT/RED
WHT/BLU
RED/BLK
WHT
RED
YEL
GRN
BLU
BRN/BLK
BLU/GRN
ORN/BLU
LT BLU
WHT/BLK
BRN/WHT
WHT/BLU
GRN/RED
BLU/GRN
BLU/GRN
ORN/BLU
ORN
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Special Tools Required
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
YES
NO
No picture is shown on the display
22-366
Navigation System
Symptom Troubleshooting
NAVIGATION UNIT CONNECTOR C (8P)
B (WHT/BLU)
ACC (WHT/RED)
NAVIGATION UNIT CONNECTOR C (8P)
GND (BLK)
Test harness 07LAJ-PT3020A
1. Check the NAVIGATION (10A) fuse in the
passenger’s under-dash fuse relay box, and
reinstall the fuse if it is OK.
Go to step 2.
Replace the fuse and recheck.
2. Turn the ignition switch to ACC (I).
3. Operate the radio and listen to the audio.
Go to step 4.
Check the ACC circuit.
4. Turn the ignition switch ON (II).
5. Perform the forced starting of display (see page 22-
383).
Perform the System Links Test in the Picture
Diagnosis Test menu (see page 22-376).
Go to step 6.
6. Measure the voltage between body ground and
navigation unit connector C (8P) terminals No. 1
and No. 2 individually.
Go to step 7.
Repair open in the wire between the
passenger’s under-dash fuse/relay box and the
navigation unit.
7. Check for continuity between navigation unit
connector C (8P) terminal No. 4 and body ground.
Go to step 8.
Repair open in the wire between the
navigation unit and body ground (G501).
8. Turn the ignition switch OFF.
9. Shield the display unit from the sun with your hand,
and check that the display is black (only back light
is ON.)
Replace the navigation unit.
Replace the display unit.
Wire side of female terminals
Wire side of female terminals
Is the f use OK ?
Can audio be hear d?
Is the diagnosis menu of the pictur e diagnosis
displayed?
Is ther e batter y voltage?
Is ther e continuity?
Can you see the back light?
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Picture is missing a color or tone
YES
NO
YES
NO
YES
NO
YES
NO
22-367
NAVIGATION UNIT CONNECTOR A (12P)
DISPLAY UNIT CONNECTOR B (20P)
NAVIGATION UNIT CONNECTOR A (12P)
DISPLAY UNIT CONNECTOR B (20P)
1. Perform the start-up procedure (see page 22-376).
Press the Monitor Check button then press the RGB
color button (see page 22-378).
Push the return button. Push the Color
Change button, and then press the Default button
to restore the standard color settings.
Go to step 2.
2. Turn the ignition switch OFF. Disconnect the
navigation unit connector A (12P) from the
navigation unit, and the display unit connector B
(20P) from the display unit.
3. Check for loose termnals at the navigation unit
connector A (12P) and the display unit connector B
(20P).
Repair the terminal.
Go to step 4.
4. Check for continuity between the appropriate
terminals of the navigation unit connector A (12P)
to the display unit connector B (20P) based on the
missing color(s).
Missing
color
Navigation unit
connector A
(12P)
Display unit
connector B
(20P)
Wire
color
Blue
A10
B18
YEL
Green
A5
B9
RED
Red
A4
B8
WHT
Go to step 5.
There is an open in the circuit between the
display unit and the navigation unit. Replace the
affected shielded harness.
5. Check for continuity between the appropriate
terminals of the navigation unit connector A (12P)
and display unit connector B (20P) based on the
missing color(s).
Missing color
Navigation unit
connector A
(12P) Display
unit connector B
(20P)
Display unit
connector B
(20P) Wire color
Blue
B10
B10, B20
Green
A5
B10, B20
Red
A4
B10, B20
There is a short to body ground in the circuit
between the display unit and the navigation unit.
Replace the affected shielded harness.
Replace the navigation unit. If the problem is
still unresolved, replace the display unit.
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
Ar e the r ed, gr een, and blue color ed cir cles
shown?
Ar e ther e loose ter minals?
Is ther e continuity?
Is ther e continuity?
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