Car Status
Car StatusUse this screen to confirm that the 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.
- VSP-Vehicle Speed Pulse from PCM connector A (Terminal 13 of navigation unit connector A, 17P)
a. OFF (0) when vehicle is not moving
b. 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 (Terminal 7 of navigation unit connector C, 12P)
a. OFF (0) when shift lever is in any position other; than reverse
b. 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 rearview camera. This signal is needed because the Speed Pulse does not provide any directional information to the system.
- ILL CANCEL
a. OFF (0) when the gauge assembly brightness control is less than 90 % brightness with the headlights on.
b. ON (1) when the gauge assembly brightness knob is more than 90 % brightness with the headlights on.
- ILL-Illumination Indication
(Terminal 10 of navigation unit connector A, 17P)
a. OFF (0) when parking lights or headlights are off
b. ON (1) when parking lights or headlights are on.
This signal is used by the navigation unit to determine whether to put the navigation screen into the Day or Night brightness mode. (Setup screen 1)
- The Display function displays the position of the display.
a. (Close) when the display is closed
b. (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.