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Acura RL (1996-2004 year). Manual - part 295

Navigation System

Symptom Troubleshooting (cont'd)

Picture is missing a red/green/blue color or

tone, or rolling picture

Diagnostic Test: Monitor Check

NOTE:

• Always check the connectors for poor connections or

loose terminals.

• Before troubleshooting, get the navigation system

anti-theft codes.

• After troubleshooting, enter the navigation system

anti-theft codes.

1 . Go into Diagnostic mode and use "RGB Color"

diagnostic under Monitor Check (see page

23-41

Are the red, green, and blue colored circles
shown?

YES—The system is OK.

NO—Go to step 2.

2. Turn the ignition switch to OFF.

3. Disconnect the navigation unit connector A (20P)

and display unit connector B (20P).

4. Check for loose terminals at navigation unit con-

nector A (20P) and display unit connector B (20P).

Are there loose terminals?

YES—Repair the terminal.

NO—Go to step 5.

5. Check for continuity between the appropriate termi-

nals of navigation unit connector A (20P) to display
unit connector B (20P) based on the missing color(s).

Missing

color

Blue

Green

Red

Navigation

unit

connector A

(20P)

A 1 1

A2
A1

Display unit

connector B

(20P)

B18

B9
B8

Wire

color

YEL
RED

WHT

NAVIGATION UNIT CONNECTOR A (20P)

DISPLAY UNIT CONNECTOR B (20P)

Wire side of female terminals

Is there continuity?

YES—Go to step 6.

NO—There is an open in the circuit between the dis-
play unit and the navigation unit. Check for poor con-
nections or loose terminals at the display and naviga-
tion units. If a poor connection or loose terminal is

found, replace the affected shielded harness.

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6. Check for continuity between the appropriate termi-

nals of navigation unit connector A (20P) and display
unit connector B (20P) based on the missing color(s).

Missing Navigation

color unit connector

A (20P)

Blue A 1 1

Green A2

Red A1

Display unit

connector B

(20P)

B10, B20
B10, B20
B10, B20

NAVIGATION UNIT CONNECTOR A (20P)

Wire side of female terminals

DISPLAY UNIT CONNECTOR B I20PI

Wire side of female terminals

Is there continuity?

YES—There is a short to body ground in the circuit

between the display unit and the navigation unit.
Replace the affected shielded harness.

NO—Replace the navigation unit. If the problem is
still unresolved, replace the display unit.

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Picture has lines/other issues

Diagnostic Check: Monitor Check

NOTE:

• Always check the connectors for poor connections or

loose terminals.

• Before troubleshooting, get the navigation system

anti-theft codes.

• After troubleshooting, enter the navigation system

anti-theft codes.

1 . Check for electronic aftermarket accessories (passive-

ly hidden) mounted near the display unit or the navi-

gation unit.

Are there any electronic accessories?

YES—Disable the accessories, and recheck.

NO—Go to step 2.

2. Start up the navigation picture.

Is the picture scrolling horizontally (left to right or
right to left)?

YES—Check for an open or short to ground in the C
SIG wire from navigation unit connector A (20P) ter-
minal No. 1 2 to display unit connector B (20P) termi-
nal No. 18. Also check for a short to ground between
display unit connector B terminal No. 19 and terminal
No. 20.

NO—Go to step 3.

3. Go into the Diagnostic mode and use "RGB Color"

diagnostic under Monitor Check (see page

23-41

Is the picture missing a red, green or blue color?

YES—Do the troubleshooting for the picture is miss-

ing a red, green or blue color or tone (see page

23-28)

NO—Go to step 4.

(cont'd)

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