Precautions for NAVI Control Unit Replacement
+When replacing the NAVI control unit, eject the map DVD-ROM before disconnecting the battery.
+ The NAVI control unit has the following information stored in its memory. Record the memory contents
before replacing the control unit, and input them in the new unit as necessary.
+Brightness of light when ON/OFF
+ Dimming switching
+ Display color switching
+Latest status (map screen/BIRDVIEW T, reduced scale, rotation angle of map screen,
route guide ON/OFF, track ON/OFF, etc.)
+ Current position
+ Destination, passing poin t1-5
+ Registered places, their names, etc.
NOTE:
Only removing the battery does not erase the memory.
Component Parts And Harness Connector
Location
PKIB1033E
NAVIGATION SYSTEM
EL-4173
Terminal No.(wire color) ItemSignal
input/
output Condition
Reference value Example of symptom
(+) (þ) Ignition
switch Operation
21 (G) 17 RGB signal
(G: green)Output ON Select ªColor barº of
CONFIRMATION/
ADJUSTMENT func-
tion.
SKIA0166E
RGB screen looks red-
dish.
25 (L/B) Ground Illumination
signalInput ON Lighting switch posi-
tion 1st or 2nd
Battery voltage
Night illumination for
switches does not illumi-
nate.
Lighting switch posi-
tion OFF Approx. 0V
26 (R/W) Ground IGN signal Input ON Ð Battery voltage Vehicle information set-
ting is not possible.
27 (Y) Ground Reverse
signalInput ON Select R-position Battery voltage
The navigation current
location mark moves
strangely when the
vehicle is moving back-
wards.
Other position Approx. 0V
28 (R/W) Ground Vehicle
speed signalInput ON When vehicle speed
is approx. 40 km/h
(25 MPH)
ELF1084D
Navigation current loca-
tion mark does not indi-
cate the correct position.
43 Ð Shield Ð Ð Ð Ð Ð
44 (W) 43 Communica-
tion signal
(+)Input/
Output ON Ð
SKIA0175E
System does not work
properly.
45 (B) 43 Communica-
tion signal
(Ð)Input/
Output ON Ð
SKIA0176E
System does not work
properly
49 Ground GPS
antenna sig-
nalInput ON
Connector is not
connected. Approx. 5VGPS correction is not
possible.
50 Ð Shield Ð Ð Ð Ð Ð
NAVIGATION SYSTEM
Terminals and Reference Value for NAVI
Control Unit (Cont'd)
EL-4184
