navigation system ACURA RL KA9 1996 Service Repair Manual

Cavity
Wire
Connects to

A1

A2

A3

A4

A5

A6

A7

A8

A9

A10

A11

A12

A13

A14

A15

A16
BLU

WHT

RED/BLK

WHT/YEL

WHT/RED

YEL/BLU

ORN

YEL

BRN

BLK

PNK

RED

GRN/RED

BLK

GRN

RED
Output (Right front +)

Output (Left front +)

Lights-on signal

Constant power

ACC (Main stereo power

supply)

Stereo amplifier (power)

Output (Left rear +)

Output (Right rear +)

Output (Right front -)

Output (Left front -)

OnStar system interface unit

(Cellular phone)

Dash lights brightness

Radio remote switch

Ground (G403)

Output (Left rear-)

Output (Right rear-)

*2B2

*2B3

B5

B8
WHT

BLU/RED

BLK

BLU or GRN*1
OnStar control unit (Line in +)

OnStar control unit (Line in -)

Ground (G401,G402)

Multiplex control unit (pas-

senger's)

Terminal B1, B4, B6 and B7 are not used.

C4

C7

*1C8

*1C9

C10
WHT

LT GRN

BLU/RED

WHT

BLK
Navigation unit

Navigation unit

OnStar control unit (Line in -)

OnStar control unit (Line in +)

Navigation unit

Terminal C1, C2, C3, C5, C6, C11 and C12 are not used.

*1: With navigation system (USA)

*2: Without navigation system (USA)ProCarManuals.com

Audio System

XM Receiver Terminals

'03 Model With Navigation SystemProCarManuals.com

OnStar System

OnStar Buttons and Microphone Input Test

'03 Model

1. Pry off the OnStar buttons and microphone/homelink buttons.

2. Inspect the connector and socket terminals to be sure they are all making good contact.

• If the terminals are bent, loose or corroded, repair them as necessary, and recheck the system.

• If the terminals look OK, make the following input tests at the connector.

— If any test indicates a problem, find and correct the cause, then recheck the system.

— If all the input tests prove OK, the switches and microphone must be faulty; replace it.

•: A3 and A4 terminals are microphone lines for navigation system.

ONSTAR BUTTONS AND MICROPHONE/

HOMELINK BUTTONS

Cavity Wire
Test condition
Test: Desired result

Possible cause if result is not obtained

A1

A2
WHT

BLK
Ignition switch in ACC

(II) OnStar "DOT" button

pushed. Speak into the

microphone.

Under all conditions
Check for voltage to ground:

There should be 4V.

Check for continuity go ground:

There should be continuity.
• An open in the wire

• An open in the wire

B1

B2

B3

B4

B5

B6
RED/BLK

YEL/GRN

BLU/YEL

WHT/GRN

ORN

BLK
Under all conditions

Ignition switch in ACC

(II)

Ignition switch in ACC

(II)

Ignition switch in ACC

(II)

With the ignition switch

OFF, press and hold the

"DOT" button. Turn the

ignition switch from OFF

to ACC three times and

back to ACC, then release

the "DOT" button.

Under all condition
Check for voltage to ground:

There should be battery voltage.

Check for voltage to ground:

"DOT" button pushed: 280 mV.

"OnStar" button pushed: 1 V.

"Emergency" button pushed: 1.7 V.

Check for voltage to ground:

There should be about 8 V.

Check for voltage to ground:

There should be about 8 V.

Check for voltage to ground:

There should be about 4 V.

Check for continuity go ground:

There should be continuity.
• An open in the wire

• An open in the wire

• An open in the wire

• An open in the wire

• An open in the wire

• An open in the wire

• Poor ground (G401)ProCarManuals.com

Navigation Syste m
Genera l Troubleshootin g Informatio n
General Operatio n
Refer t o th e Acur a Navigatio n Syste m Owner' s manua l
fo r th e navigatio n syste m operatin g procedures .
Anti-theft Featur e
The navigatio n syste m ha s a code d thef t protectio n cir -
cuit . B e sur e t o ge t th e customer' s 4-digi t securit y cod e
numbe r before :
• disconnectin g th e batter y
• disconnectin g th e navigatio n uni t 8 P connecto r
• removin g th e No . 5 6 (7.5A ) fus e fro m th e under-hoo d
fuse/rela y bo x
Afte r service , reconnec t powe r t o th e navigatio n unit ,
an d tur n th e ignitio n switc h O N (II) . Ente r th e 4-digi t
securit y code , the n selec t "Done" .
I f th e cod e canno t b e found , us e th e interactiv e Networ k
( iN ) t o loo k i t up . Yo u wil l nee d th e seria l numbe r fo r
th e navigatio n uni t i n th e trunk . I t i s o n a ta g o n th e
undersid e o f th e unit . Alternatively , yo u ca n vie w th e
seria l numbe r i n on e o f th e Nav i EC U diagnosti c
screens.
When replacin g th e navigatio n unit , b e sur e t o giv e th e
custome r th e ne w anti-thef t securit y code .
Sympto m Diagnosi s
Under som e circumstances , th e navigatio n syste m ma y
behav e in a n inconsisten t manner . Som e customer s ma y
thin k tha t thi s indicate s a proble m when , i n fact , th e
syste m is workin g properly . Kee p th e followin g item s i n
min d whe n interviewin g customer s abou t symptom s
o f th e navigatio n system .
Self-lnertia l Navigatio n Limitation s
When GP S signal s canno t b e receive d (lik e in a tunne l o r
i n a n urba n environmen t o f tal l buildings) , th e syste m is
totall y dependan t o n th e ya w rat e an d spee d senso r t o
positio n th e vehicl e o h th e map . Unde r thes e circum -
stance s smal l error s i n th e ya w rat e an d spee d senso r
ca n accumulat e an d displa y th e vehicl e positio n o n a n
adjacen t street , o r laggin g behin d th e actua l position .
Thi s i s normal , an d usuall y correct s itsel f onc e sate -
llit e receptio n is re-established .
Th e followin g circumstance s ma y cause s vehicl e posi -
tionin g errors . •
Movin g th e vehicl e wit h th e navigatio n syste m o n an d
th e vehicl e stopped , suc h a s b y ferr y o r to w truck , o r i f
th e vehicl e is spu n o n a tur n tabl e
• Tir e slippage , change s i n tir e rollin g diameters , an d
som e drivin g situation s ma y caus e discrepancie s i n
trave l distances . Example s o f thi s include :
- Continuou s tir e slippag e o n a slipper y surfac e
- Drivin g wit h sno w chain s mounte d
-Abnorma l tir e pressur e
- Incorrec t tir e siz e
- Frequen t lan e change s acros s a wid e highwa y
-Continuou s drivin g o n a straigh t o r gentl y curvin g
highwa y
• Tolerance s i n th e syste m an d ma p inaccuracie s some -
times limi t ho w precisel y th e vehicl e positio n i s indi -
cated . Example s o f thi s include :
- Drivin g o n road s no t show n o n th e ma p (ma p match -
in g i s no t possible )
- Drivin g o n a roa d tha t wind s i n on e direction , suc h a s
a loo p bridge , a n interchange , o r a spira l parkin g
garage
-Drivin g o n a roa d wit h a serie s o f shar p hair-pi n
turn s
- Drivin g nea r a gradua l highwa y exi t o r transitio n
- Drivin g o n on e o f tw o close paralle l road s
- Makin g man y 9 0 degre e turn s
Globa l Positionin g Syste m (GPS ) Limitation s
The GP S canno t detec t th e vehicle' s positio n durin g th e
followin g instances :
• Fo r th e firs t 5 to 1 0 minute s afte r reconnectin g th e bat -
ter y (thi s ca n tak e a s lon g a s 4 5 minutes )
• Whe n th e satellit e signal s ar e blocke d b y tal l building ,
mountains , tunnels , larg e trees , o r larg e truck s
• Whe n ther e i s n o satellit e signa l outpu t (Signa l outpu t
i s sometime s stoppe d fo r satellit e servicing )
• Whe n th e satellit e signal s ar e blocke d b y th e operatio n
of som e electroni c aftermarke t accessorie s including ,
but no t limite d t o non-DE M in-das h entertainmen t
unit s (radio , C D players/changers , an d L o Jack ) an d
windo w tintin g abov e th e GP S antenn a
Th e accurac y o f GP S is reduce d durin g thes e instances :
• Whe n onl y tw o satellit e signal s ca n b e receive d (Thre e
satellit e signal s ar e require d fo r accurat e positioning )
• Whe n th e satellit e contro l center s ar e experiencin g
problem s
• Whe n drivin g hea r hig h tensio n powe r lines .
• Whe n drivin g nea r tal l building s tha t reflec t satellit e
signals , creatin g fals e positio n locatio n readings .
• I f electroni c GP S jammin g i s occurrin g eithe r inten -
tionally , o r unintentionally .
• I f loos e item s o r pet s ar e restin g abov e th e antenn a
o n th e rea r shelf .
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System Description

Navigation Unit Inputs and Outputs for Connector A (20P)ProCarManuals.com

Navigation System

System Description (cont'd)

Navigation Unit Inputs and Outputs for Connector B (14P)ProCarManuals.com

Navigation Syste m
System Descriptio n (cont'd )
Navigatio n Uni t Input s an d Output s fo r Connecto r D (16P ) (No t used )
Navigatio n Uni t Input s an d Output s fo r Connecto r E (2P )
Wire sid e o f femal e terminal s
ProCarManuals.com

Navigation System

System Description (cont'd)

Display Unit Inputs and Outputs for Connector B (20P)

Wire side of female terminalsProCarManuals.com

Navigation System

System Description (cont'd)

Overview

The Acura Navigation System is a highly-sophisticated, hybrid locating system that uses satellites and a map database to

show you where you are and to help guide you to a desired destination.

The navigation system receives signals from the Global Positioning System (GPS), a network of 24 satellites in orbit

around the earth. By receiving signals from serveral of these satellites, the navigation system can determine the latitude,

longitude, and elevation of the vehicle. In addition, signals from the system's yaw rate sensor and the PCM (vehicle

speed pulse) enable the system to keep track of the vehicle's direction and speed of travel.

This hybrid system has advantages over a system that is either entirely self-contained or one that relies totally on the

GPS. For example, the self-contained portion of the system can keep track of vehicle position even when satellite signals

cannot be received. When the navigation system is on, the GPS can keep track of the vehicle position even when the vehi-

cle is transported by ferry.

The navigation system applies all this location, direction, and speed information to the maps and calculates a route to the

destination entered. As you drive to that destination, the system provides both visual and audio guidance.

This navigation system also has voice recognition that allows voice control of most of the navigation functions. The TALK

and BACK buttons on the steering wheel activate the voice control.

The illumination signal is used for two purposes. The display unit uses the signal to light up the hard buttons surrounding

the display. In addition the signal is used by the navigation unit to automatically switch from the "Day" to "Night" display

mode when the headlights are on. This automatic switching occurs only if the "Display" setting in setup screen 1 is set to

"AUTO". If the headlights are on and the customer has the dash light brightness control to "full bright," then this overrides

the "Night" mode.

The use of the audio speakers follows a hierarchy. The highest priority is the OnStar voice, followed by the navigation voice,

and finally the radio/CD. The audio unit enforces this hierarchy. The GA-Net bus is used to pass commands to mute the speak-

ers, and to disable the voice control system. Prior systems used dedicated wires to accomplish this function.

• If On-Star is in use, the audio unit passes a command on the GA-Net bus to the navigation unit to disable the voice control

system. The navigation unit then ignores the voice control switch, and temporarily ceases voice route guidance prompts.

• When the navigation system issues route guidance, the navigation unit uses the GA-Net bus to tell the audio unit to mute just

the front speakers. When the voice control system is being used (the TALK/BACK buttons), the navigation unit uses the GA-

Net bus to tell the audio unit to mute all speakers.ProCarManuals.com

System Description (cont'd)

Navigation Function

The navigation system is composed of the navigation unit, the PCM (vehicle speed signal), the GPS antenna, microphone,

steering buttons, audio unit and the display unit.
Navigation SystemProCarManuals.com