ItemDefinition
23-288Navigation System
System Description (cont’d)
LCD
Liquid Crystal Display (the navigation screen)
Map matching The received GPS information allows the navigation system to position the vehicle on the map. MAP
matching has occurred if the map screen displays the current street name in the bottom-shaded area.
Mic Abbreviation for the microphone used for receiving voice commands. It is located near the map light in the
ceiling. The ANC circuit may also use it to check its tuning.
MID Multi-Information Display
MW Maneuver Window. While on route to a destination, this window displays information about the next
maneuver.
Navi Abbreviation for the Navigation System.
Off-road tracking See bread-crumbs.
Off route This occurs when the user leaves mapped roads. Off road tracking dots (bread-crumbs) are displayed If the
option is enables in the setup menu. The user can use them to return to a mapped road. The bottom of the
navigation screen displays not on a digitized road.
Outlying areas These are rural areas that typically have only their main roads mapped. All other roads are shown in light
brown for reference only, since the have not been verified.
Paired Linking your call phone to the HFL.
PC Card Slot The PC Card (PCMCIA, type II) slot is for factory use only. Make sure that the sliding door is closed at all
times, if opened, an error message is displayed on the screen.
PCM Powertrain Control Module. This unit supplies the navigation system speed signal, also refered to as PCM.
PCMCIA A computer industry defined term referring to the PC Card slot standard.
PIN Personal Identification Number, a random 4 digit number created by the customer to protect personal
information.
POI Point Of Interest. These are the businesses, schools, etc. found under the places option on the main menu.
Polygon Colored areas on the map screen denoting parks, schools, etc. See the Navigation System Manual Driving to
Your Destination for a list of the assigned colors.
QWERTY Keyboard layout resembling the typewriter keys. The keyboard layout can be changed to an alphabetical
layout in the Setup mode.
SCS connector The service check signal 2-pin connector used to put the navigation system into the diagnostic mode.
Security code Code needed to activate the navigation system. You can get the security code from the in by entering the
navigation unit serial number. You can find the serial number on the diagnostic screens (unit check, Navi
ECU), or on the underside of the navigation unit.
Tuning A continual update of internal navigation system scaling factors. See the individual sensor tuning
discussions under either System Description, or System Diagnosis Mode (see page 23-297).
Unverified streets These streets have not been verified for turn restrictions, one-way, etc. They appear light brown on the map.
You can enter address destinations in these areas, but depending on your Unverified. Routing choice in
setup, voice guidance may end at the last verified street closest to your destination.
USB Universal Serial Bus. The USB is used for playing the compressed audio files (MP3, WMA, and AAC) on the
external device through the audio unit.
Verified streets These streets consist of the detailed metropolitan coverage areas, and other inter-town connection roads.
These roads are shown in black or red on the map. (interstates are red)
VP Vehicle Position. When in map mode, this circular icon shows the vehicle position on the map.
VR Voice Recognition. This allows voice control of many of the navigation functions. The hardware consists of
the microphone, voice control switch (navigation TALK/BACK buttons), and the center speaker. See the
overview for more information.
VSP Vehicle Speed Pulse. This pulse signal coming from the PCM (VIA the CSS) is used to update the Vehicle
position on the map. These pulses do not indicate direction (forward or backward). When in reverse, the
navigation receives a signal and directs the VP to move backwards on the map.
XM This device receives information from the XM satellites and passes XM audio information to the audio unit.
In addition, traffic information is sent to the navigation unit.
Yaw sensor This device is located in the navigation system control unit and senses the side-to-side twisting force
generated when the vehicle turns. See a detailed description of how this sensor works in system description.
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ÎDiagnostic System Diagram
23-289
This diagram below shows all of the navigation diagnostic features available for system troubleshooting. The diagram
starts at the center, and works outward in layers.
Access to the diagnostic features begins by starting the vehicle. This is necessary so the system can check the other
systems connected by various busses. After starting the vehicle you can enter the diagnostic mode either by pressing
and holding MENU, MAP/GUIDE, and CANCEL.
The main menu screen allows 2 checking modes - one automatic, and one manual:
The automatic diagnostic check starts when you select SELF DIA GNOSTIC MODE. The system runs for several
seconds, and reports any issues with Red icons. Rotate the interface dial and select the icon you wish obtain the
problem details.
The manual diagnostic check is selected from the main menu by selecting DETAIL INFORMATION AND SETT ING.
The traditional diagnostic menu is displ ayed. This allows you to obtain additional details as instructed in the
troubleshooting procedures.
NOTE: Do not clear or change settings unless specified by either the Service Manual troubleshooting procedures or by
the factory. Otherwise, you may accidentally delete customer information, or remove the latest flash software version
installed by the factory.
(cont’d)
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Navigation System Connector Location
23-290Navigation System
System Description (cont’d)
NAVIGATION UNIT
CONNECTOR E (14P)
NAVIGATION UNIT
CONNECTOR A (24P) NAVIGATION UNIT
CONNECTOR B (24P)
NAVIGATION UNIT
CONNECTOR D (12P)
NAVIGATION UNIT
CONNECTOR C (8P)
NAVIGATION UNIT
CONNECTOR H (2P)
NAVIGATION UNIT CONNECTOR A (24P) NAVIGATION UNIT CONNECTOR B (24P)NAVIGATION UNIT
CONNECTOR C (8P)
NAVIGATION UNIT
CONNECTOR E (14P)
NAVIGATION UNIT
CONNECTOR D (12P)
NAVIGATION UNIT
CONNECTOR H (2P)
Terminal side of female terminals Wire side of female terminals
Wire side of
female terminals
Wire side of female terminals
Wire side of female terminals
Wire side of female terminals
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Navigation Unit Inputs and Outputs for Connector B (24P)
Navigation Unit Connector B (24P) TerminalNumber Wire Color Terminal Name Description Voltage
(about)Symptom
23-292Navigation System
System Description (cont’d)
10 GRY HFL/NAVI COMM SH
(Shield HFL) Shield for terminal
No. 11, 12, 23, 24
11 GRN HFL/NAVI COMM2 (HFL communication 2) Communication
signal for HFL HFL icon in Navi System Link changes
between red and green
12 WHT HFL/NAVI COMM4 (HFL communication 4) Communication
signal for HFL Solid red HFL icon in Navi System Link
23 BLK HFL/NAVI COMM1 (HFL communication 1) Communication
signal for HFL HFL icon in Navi System Link changes
between red and green
24 RED HFL/NAVI COMM3 (HFL communication 3) Communication
signal for HFL Solid red HFL icon in Navi System Link
: The shielded wires have a heat-shrunk tube insulating the outside of the wire. The color of the insulating tube, typically black or dark gray, may not match the color of the wire listed on the schematic.
Wire side of female terminals
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Navigation Unit Inputs and Outputs for Connector C (8P)
Navigation Unit Connector C (8P)TerminalNumber Wire Color Terminal Name Description Voltage (about) Symptom
23-293
1 WHT B BACK UP Continuous power
sourceBattery voltage If open: Display picture goes out (display back light
still on). NOTE: System will reboot to enter code
screen.
If short to ground: Blows fuse No. 23 (10 A) in the
under-dash fuse/relay box.
4 BLK GND Ground for navigation unit0 V If open: No effect on system.
If short to ground: No effect on system.
7 BRN BACK LT Reverse signal of select laver from
Multiplex
integrated Control
unit (A/T) or
backup light switch
(M/T)In reverse,
battery voltage:
Otherwise0V
If open: Navigation never sees the reverse signal
and back-up camera does not come on when in
reverse. Diagnostic screen Car Status, Back = 0.
If short to ground: Blows fuse No. 10 (7.5 A) in the
under-dash fuse/relay box.
(cont’d)
Wire side of female terminals
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Navigation Unit Inputs and Outputs for Connector D (12P)
Navigation Unit Connector D (12P) TerminalNumber Wire Color Terminal Name Description Voltage (about) Symptom
23-294Navigation System
System Description (cont’d)
1 GRN NAVI GUIDE Steering wheel
switch output45V
(navigation TALK
button pressed)
2.5 3 V
(navigation
BACK button
pressed)If open: Steering wheel navigation TALK, and
navigation BACK switch/buttons do not work.
If short to ground: Steering wheel navigation TALK,
and navigation BACK switch/buttons do not work.
5 YEL AC SI A/C input signal 0-battery voltage pulsesIf open: voice control does not work.
If short to ground: Voice control does not work.
6 RED AC SO A/C output signal 0-battery voltage pulsesIf open: A/C voice control does not work.
If short to ground: A/C voice control does not work.
7 BRN MIC GND Ground for microphone signal0 V If open: No microphone signal shown in
diagnostics: Navi System Link and Functional Set
up Mic Level.
If short to ground: No effect on voice recognition.
8 YEL MIC SIG Microphone output signal positive45V(with
navigation TALK
button pressed)If open: No microphone signal shown in diagnostic
screens: Navi System Link and Functional Setup
Mic Level.
If short to ground: No microphone signal shown in
diagnostic screens: Navi System Link and
Functional Setup Mic Level.
9 GRY MIC SHIELD Shield for terminal No.7,80 V If open: No effect on voice recognition.
If short to ground: No effect on voice recognition.
12 BLU AC CK Time set sync signal0-battery voltage
pulsesIf open: A/C voice control does not work.
If short to ground: A/C voice control does not work.
: The shielded wires have a heat-shrunk tube insulating the outside of the wire. The color of the insulating tube, typically black or dark gray, may not match the color of the wire listed on the schematic.
Wire side of female terminals
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Navigation Unit Inputs and Outputs for Connector H (2P)
Navigation Unit Connector H (2P)TerminalNumber Wire Color Terminal Name Description Voltage (about) Symptom
23-295
1
GPSGPS signal
(5 V in, GPS signal
out) 5 V
If open: GPS icon on screen is white, system links
screen ANT shows NG.
If short to ground: GPS icon on screen is white,
system links screen ANT shows NG.
2 GPS SHShield for terminal
No. 1 0 V
If open: GPS icon on screen is white, system links
screen ANT shows NG.
If short to ground: No effect on system.
Terminal side of female terminals
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23-296Navigation System
Circuit Diagram
A10 A9
BRN10
BRN
3 CABLE REEL
A5 A29
D1 CABLE REEL GRN
RED/BLK
BACKTALK
5
GRY
GPS
H1
H2
VSP BLU
A15
PNK BLU NAVIGATION UNIT
HFL-VOICE CONTROL SWITCH
8
GRN 680
10 k
2.2 k
GPS
ANTENNA
No. 14 (7.5 A) FUSE
(In the under-dash
fuse/relay box) DASH LIGHTS
BRIGHTNESS
CONTROLLER
AUDIO
REMOTE
GND VSP
GPS
XM
RECEIVER A3BRN K-LINE
MICU
A14
PUR
Q14 Q4
GRNA4
A3
LT BLU
Q8 Q1
WHT
WHT
UNDER-DASH FUSE/RELAY BOX A1
A13
A24 C1
C7
WHT B
BACK UP
BACK
LT
B
BACK UP
SCTY
RADIO
ACC
RADIO
G2 RED
GRY
ILL
ILL
RED
ORN ACC HOT in ACC (I)
and ON (II)
ACC
BAT
IGNITION
SWITCH
C2
WHT
BRN
No. 23
(10 A)
UNDER-HOOD FUSE/RELAY BOX
BATTERY
H1
D4 No. 2
(IG)
(50 A)
E15
No. 35
(7.5 A) No.14(7.5A)FUSE
(In the under-dash
fuse/relay box)
DASH LIGHTS
BRIGHTNESS
CONTROLLER
GPS
SH
GA-NET
BUS
GA-NET
BUS
GA-NET
BUS SH *:
The shielded wires have a heat-shrunk tube
insulating the outside of the wire. The color
of the insulating tube, typically black or dark gray,
may not match the color of the wire listed on the
schematic.
:GA-NET
:Shielding
28 27
D9
RED
D7 D8
GRN
MIC
GND MIC
SIG MIC
SIG
MIC
GND
MIC
SH MIC MIC
21
GRY BRN YEL
14 13
12
MIC SH MIC MIC
GRY
B10 8
HFL/NAVI
COMM SH
GRY GRY
B24 RED 7
21 20
GRN
B11
B23
BLK HFL/NAVI
COMM1
HFL/NAVI
COMM2
HFL/NAVI
COMM3
B12 WHT 6
HFL/NAVI
COMM4
HFL
SWITCH
A10 A9
BRNE3
E10
PNK BLU E9
USB
ADAPTER
UNIT A3BRN
GA-NET
BUS
GA-NET
BUS
GA-NET
BUS SH GA-NET
BUS
GA-NET
BUS
GA-NET
BUS SH
PNK BLU
A12
G504
G505 BLK
BLK
GND RADIO
GNDHFL/NAVI
COMM1
HFL/NAVI
COMM2
HFL/NAVI
COMM3
HFL/NAVI
COMM4 HFL/NAVI
COMM SH
NAVI
GUIDE
No. 1 (BAT) (100 A)
ECM/PCM
(VEHICLE
SPEED SIGNAL)
YEL AC
SI
RED AC
SO
CLIMATE
CONTROL
UNIT
BLUAC
CLK
D5
D6
D12
C4 ORN
MOONROOF
SWITCH MIC
ADPTHFL-NAVIGATION
MICROPHONE
3
* *
*
**
*
*
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