Haltech HT-186363 Quick Start Manual page 3

LOADING BASEMAPS
Uploading the correct basemap
Your Nexus ECU can communicate with a laptop in
low power mode using just a USB cable connection.
This feature enables you to upload the basemap
without powering the ECU through the Plug 'N'
Play adapter harness. This ensures that all the ECU
inputs and outputs are configured specifically for
your engine before powering the vehicle up.
To upload the correct basemap into your Nexus
ECU, follow these general steps:
1. Install/Open Haltech NSP: Haltech Nexus
Software Programmer (NSP) is the software tool for
configuring and tuning your Nexus ECU. Download
and install NSP from the Haltech website to your
Windows laptop if you haven't already done so.
Instructions on how to install the software are
available in the quick start guide that came with
your Nexus ECU.
2. Connect to the ECU: Use the included USB-A to
USB-C interface cable to connect your laptop to the
Nexus ECU.
3. Upload the Basemap: Once connected, initiate
the upload process by clicking on the File Menu,
then click on Import/Upload, then navigate to the
Haltech basemaps folder. Typically, this will be in
Documents > Haltech > Nexus Maps and Data Logs
> Base Maps. Choose the correct basemap file for
your application as shown in the next page, then
click Open.
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4. Upload All Settings: After opening the file, the
NSP software will give you the option to upload
specific parts of the map or to upload all the
settings. Click on "Upload All" to copy all the base
settings to your Nexus ECU. After NSP writes all the
settings, click on the Reboot button to reinitialize
the ECU.
5. Configure Application-Specific Settings: If you
are using non-standard components on your engine,
you will need to reconfigure the Nexus ECU to suit
before connecting the unit to the Plug 'N' Play
adapter harness and powering up the vehicle. These
may include changing injector sizes/flow rates,
adjusting ignition coil settings, or reconfiguring the
trigger settings to match an aftermarket trigger kit.
6. Setup the Internal Jumpers: Some adapter boxes
feature internal jumpers that you can set to suit
specific vehicle models. If you need to change the
jumper settings beyond the default configuration,
open up the adapter box and follow the instructions
provided in the previous section.
At this stage, the Nexus ECU and Plug 'N' Play
harness are now ready to be installed into the
vehicle for the initial start-up.
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