Acura RL. Manual - part 645

1

WHT

+B (+B power 
source)

Continuous power source

Battery 
voltage

backlight visible). 
If short to ground: 
Blows fuse No. 7 (10A) 
in the driver's under-
dash fuse/relay box.

2

PUR

ACC 
(Accessory)

Power source for 
accessory

Battery 
voltage at 
ACC (I)

If open: Display and 
buttons do not work. 
If short to ground: 
Blows fuse No. 32 
(10A) in the driver's 
under-dash fuse/relay 
box.

5

GRN

DISP BUS(-f) 
(Display bus 
positive)

Data bus (+) GA-Net

0-5 V pulses 
average 2.5 V 
depends on 
bus traffic

If open: Navigation 
buttons do not work. 
If short to ground: 
Navigation buttons do 
not work.

6

GRN

SCTY(+) 
(Security 
positive)

Security signal

0 V

If open: If security 
system set, it will not 
trip when screen is 
removed. 
If short: If security 
system set, it will not 
trip when screen is 
removed.

8

WHT

RSIG (Red 
signal)

Red color signal

0-1 V

If open: Red color 
missing (see "RGB 
COLOR" diagnostic). 
If short to ground: Red 
color missing (see 
"RGB COLOR" 
diagnostic).

9

RED

GSIG (Green 
signal)

Green color signal

0-1 V

If open: Green color 
missing (see "RGB 
COLOR" diagnostic). 
If short to ground: 
Green color missing (see 
"RGB COLOR" 
diagnostic).

10

BLK GND (Ground) Ground for display unit

0 V

If open: No change to 
display. 
If short to ground: No 
change to display.

11

LT 

BLU

ILL(+) 
(Illumination 
positive)

Parking light on signal 
from dash and console 
light

Lights on: 
battery 
voltage, 
Lights off: 0 
V

If open: When 
brightness "Auto," then 
night mode for the 
display is inoperative 
when lights on. 
If short to ground: 
Blows small light relay 

 

2007 Acura RL 

2005-08 ACCESSORIES AND EQUIPMENT Navigation System - RL

  

me 

 

Friday, June 05, 2009 3:28:15 PM

Page 39 

© 2005 Mitchell Repair Information Company, LLC. 

Display unit 20P connector

in under-hood fuse/relay 
box.

14

GRY

(1)

SH DISP BUS 
(Shield display 
bus)

Shield for display bus 
No. 5, 16 terminals

0 V

If open: No change to 
display. 
If short to ground: No 
change to display.

15

RED

DISP BUS(-) 
(Display bus 
negative)

Date bus (-) GA-Net

0-5 V pulses 
average 2.5 V 
depends on 
bus traffic

If open: Navigation 
buttons do not work. 
If short to ground: Hard 
buttons work OK.

16

BRN

SCTY(-) 
(Security 
negative)

Security signal

0 V

If open: If security 
system set, it will not 
trip when screen is 
removed. 
If short: If security 
system set, it will not 
trip when screen is 
removed.

17

BLU

GND SIG 
(Ground signal)

Ground for color signal

0 V

If open: No change to 
display. 
If short to ground: No 
change to display.

18

YEL

BSIG (Blue 
signal)

Blue color signal

0-1 V

If open: Blue color 
missing (see "RGB 
COLOR" diagnostic). 
If short to ground: Blue 
color missing (see 
"RGB COLOR" 
diagnostic).

19

BRN

C SIG 
(Composite 
signal)

Composite video 
(vertical/horizontal) 
synchronizing signal

0.3 V

If open: Picture rolls 
horizontally, colors still 
visible. 
If short to ground: 
Picture rolls 
horizontally, colors still 
visible.

20

GRY

(1)

SH SIG (Shield 
signal)

Shield for No. 8, 9, 17, 
18, 19 terminals

0 V

If open: No change to 
display. 
If short to ground: No 
change to display.

(1)

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.

 

2007 Acura RL 

2005-08 ACCESSORIES AND EQUIPMENT Navigation System - RL

  

me 

 

Friday, June 05, 2009 3:28:15 PM

Page 40 

© 2005 Mitchell Repair Information Company, LLC. 

Fig. 22: Identifying Display Unit 20P Connector 
Courtesy of AMERICAN HONDA MOTOR CO., INC. 

Navigation unit connectors  

Fig. 23: Identifying Navigation Unit Connectors 
Courtesy of AMERICAN HONDA MOTOR CO., INC.

 

2007 Acura RL 

2005-08 ACCESSORIES AND EQUIPMENT Navigation System - RL

  

me 

 

Friday, June 05, 2009 3:28:15 PM

Page 41 

© 2005 Mitchell Repair Information Company, LLC. 

CIRCUIT DIAGRAM 

With AcuraLink  

Fig. 24: Navigation System (With Acuralink) - Circuit Diagram (1 Of 2) 
Courtesy of AMERICAN HONDA MOTOR CO., INC.

 

2007 Acura RL 

2005-08 ACCESSORIES AND EQUIPMENT Navigation System - RL

  

me 

 

Friday, June 05, 2009 3:28:15 PM

Page 42 

© 2005 Mitchell Repair Information Company, LLC.