Car Status

Use this screen to confirm that navigation unit is properly receiving input signals. Signals equal to (0) are OFF, and signals equal to (1) are ON. If the value on the display does not match the actual vehicle status, then check the wire carrying the signal.

Fig 1: Car Status - Screen Display

Courtesy of AMERICAN HONDA MOTOR CO., INC.

• VSP-Vehicle Speed Pulse from PCM connector A (Pin 13 of 17-Pin C-connector)
  1. OFF (0) when vehicle is not moving
  2. ON (1) when vehicle is moving

The VSP comes from the PCM as a dedicated signal. Internally, the navigation unit compares the actual VP on the map against street data to adjust the pulse to speed scaling factor.

• BACK-Reverse indication from taillight relay (Pin 7 of 12-Pin C-connector)
  1. OFF (0) when shift lever is in any position other than reverse
  2. ON (1) when shift lever is in reverse

The Back signal is used by the navigation unit to allow the map screen to show the VP moving backwards when in reverse and to trigger the optional rear view camera. This signal is needed because the Speed Pulse does not provide any directional information to the system.

• ILL CANCEL
  1. OFF (0) when the gauge assembly brightness control is less than 90 % brightness.
  2. ON (1) when the gauge assembly brightness knob is more than 90 % brightness.
• ILL-Illumination Indication

  (Pin 10 of navigation unit 17-Pin A-connector)

  1. OFF (0) when parking lights, or headlights are off
  2. ON (1) when parking lights, or headlights are on

The navigation unit uses the signal to determine whether to put the navigation screen into the Day or Night brightness mode. (Setup screen 1)

• Display-this displays the current position of the display
  1. (Close) when the display is closed
  2. (Open) when the display is open

The navigation unit has a microswitch to detect this. If open is indicated when the display is closed, replace the navigation unit.