Honda 2007 Acura RL User Manual page 53

2005-08 ACCESSORIES AND EQUIPMENT Navigation System - RL
YES - Check for loose connections, then replace the original display unit (see NAVIGATION
DISPLAY UNIT REMOVAL/INSTALLATION ).
NO - Check for loose connections and recheck. If a poor connection or loose terminal is found,
replace the shielded harness. If no poor or loose terminals are found, substitute a known-good
navigation unit (see NAVIGATION UNIT REMOVAL/INSTALLATION ) and recheck. If the
problem is gone, replace the original navigation unit (see NAVIGATION UNIT
REMOVAL/INSTALLATION ).
INTERFACE DIAL BUTTONS DO NOT WORK
NOTE:
Check the vehicle battery condition first.

Always check the connectors for poor connections or loose terminals.

Before troubleshooting, make sure you have the anti-theft codes for the

audio system and the navigation system.
After troubleshooting, enter the navigation system anti-theft code.

Always make sure that the correct DVD color and version are installed.

Inspect the DVD for dirt or damage.

Enter the anti-theft codes for the audio system and the navigation

system.
1. Turn the ignition switch to ON (II).
2. Go into the Diagnostic mode, and use "Hard Key" test under Unit Check (see UNIT CHECK ).
Do the buttons work properly?
YES - The system is OK at this time.
NO - Go to step 3.
3. Try all the buttons on the navigation system.
Is there a specific row or columns of buttons, set of buttons, or a certain button that does not respond
properly (i.e. pressing a button in the lower left corner causes a button in the lower right corner to
respond.)?
YES - Replace the interface dial (see NAVIGATION DISPLAY UNIT
REMOVAL/INSTALLATION ).
NO - Go to step 4.
4. Turn the ignition switch to ON (II).
5. Measure the voltage between the interface dial 5P connector No. 4 terminal and body ground.
2007 Acura RL