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Navigation Frequently Asks For Anti-Theft Code and Needs GPS Initialization

WARNING: This page is about a different car, the 2011 Honda Pilot, 2010 Honda Pilot, and 2009 Honda Pilot. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • Check any official Honda service website for more service information about the navigation system.
  • This is often caused by a loss of battery power, a low or poor battery condition, or a poor ground.
  • Make sure that the correct navigation DVD color and version are installed.
  1. Turn the ignition switch to ON (II).
  2. Measure the voltage between body ground and navigation unit connector A (8P) terminals No. 1 and No. 2 individually.

    Is there battery voltage? 

    YES  - Go to step  3.

    NO  - If the +B wire does not have voltage, repair open in the wire between the under-dash fuse relay box and the navigation unit. If the ACC wire does not have voltage, repair open in the wire between the under-dash fuse/relay box and the navigation unit. ■

    Fig 1: Checking Voltage Between Body Ground & Navigation Unit Connector A (8P) Terminals No. 1 & No. 2
    G05967195Courtesy of AMERICAN HONDA MOTOR CO., INC.
  3. Measure the voltage between navigation unit connector A (8P) terminal No. 4 and body ground.

    Is there less than 0.2 V? 

    YES  - Substitute a known-good navigation unit (see NAVIGATION UNIT REMOVAL/INSTALLATION  ), and retest. If the problem goes away, replace the original navigation unit. ■

    NO  - Repair open or high resistance in the BLK wire between navigation unit connector A (8P) and body ground (G503). ■

    Fig 2: Checking Voltage Between Navigation Unit Connector A (8P) Terminal No. 4 & Body Ground
    G05967196Courtesy of AMERICAN HONDA MOTOR CO., INC.