Global Navigation Motion Module
When replacing the Global Navigation Motion Module (GNMM), perform the following steps:
- Load the satellite Ephemeris and Almanac data.
- Position the vehicle to an area where a full range of satellites are in view (Open Sky).NOTE:
No obstructions >10 degrees above the GNMM antenna.
- Connect the scan tool to the vehicle.
- Navigate to the Guided Diagnostics tab.
- Select and perform the " PROXI Configuration Alignment " routine.
- Check the LAT/LONG position is correct for the vehicles current location.
- Verify the GNMM is outputting proper global navigation data by verifying the display coordinates are correct to the vehicles location.