Honda 2007 Acura RL User Manual page 47

2005-08 ACCESSORIES AND EQUIPMENT Navigation System - RL
fuse relay box and the navigation unit. If the ACC wire does not have voltage, repair open in the wire
between the driver's under-dash fuse/relay box and the navigation unit.
6. Turn the ignition switch to LOCK (0).
7. Disconnect navigation unit connector C (8P).
8. Check for continuity between navigation unit connector C (8P) No. 4 terminal and body ground.
Fig. 29: Checking Continuity Between Navigation Unit Connector C (8P) No. 4 Terminal And
Body Ground
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there continuity?
YES - Go to step 9.
NO - Repair open in the wire between the navigation unit and body ground (G602).
9. Reconnect navigation unit connector C (8P).
10. Do the forced starting of the display (see FORCED STARTING OF DISPLAY ).
Is the diagnosis menu of the picture diagnosis displayed?
YES - Go into the Diagnostic mode and use the "Navi System Link" diagnostic (see NAVI SYSTEM
LINK ) to check the links.
NO - Go to step 11.
11. Shield the display unit from the sun with your hand, and check that the display is back lit (only back
light is ON).
Can you see the back light?
YES - Replace the navigation unit (see NAVIGATION UNIT REMOVAL/INSTALLATION ) and
retest. If the problem is still present, replace the display unit (see NAVIGATION DISPLAY UNIT
REMOVAL/INSTALLATION ).
NO - Go to step 12.
12. Turn the ignition switch ON (II).
2007 Acura RL