Honda 2007 Acura RL User Manual page 48

2005-08 ACCESSORIES AND EQUIPMENT Navigation System - RL
13. Measure the voltage between body ground and display unit 20P connector No. 1 and No. 2 terminals
individually.
Fig. 30: Measuring Voltage Between Body Ground And Display Unit 20P Connector No. 1, 2
Terminals
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Is there battery voltage?
YES - Replace the display unit.
NO - If the +B wire does not have voltage, repair an open in the wire between the driver's under-dash
fuse relay box and the display unit 2P connector. If the ACC wire does not have voltage, repair an
open in the wire between the under-dash fuse/relay box and the display unit 20P connector.
VEHICLE POSITION ICON CONSTANTLY LEAVES ROAD, MOVES ERRATICALLY, OR IS
VERY FAR FROM ACTUAL POSITION
NOTE:
This is not same condition as when driving off-road (or on a fire or

logging road). This condition is caused by a loss of map matching from
a bad sensor input. Check for after market or other objects that can
block the GPS signal. Always perform Map matching (see MAP
MATCHING ) before proceeding with the troubleshooting.
Always make sure that the correct DVD color and version are installed.

Check on-line for service bulletins or other service information for the

navigation system.
Inspect the DVD for dirt or damage.

1. Check the GPS icon on the navigation picture.
Is the GPS icon white?
YES - Do the troubleshooting for GPS icon is white or not shown (see GPS ICON IS WHITE OR
NOT SHOWN ).
NO - Go to step 2.
2. Go into the Diagnostic Menu, and use the "Yaw Rate" test (see YAW RATE TUNING ) to check the
2007 Acura RL