MX5things Mazda MX-5 PRHT roof controller RCNC-2 Installation Guide

: August 25, 2024
: MX5things

Table of Contents

Mazda MX-5 PRHT roof controller RCNC-2
Product Information
Specifications:
Hardware Installation:
Operation:
Module Configuration:
FAQ:
Q: How do I know if the installation was successful?
Q: Can I change the operational speed limit after
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Mazda MX-5 PRHT roof controller RCNC-2

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Product Information

Specifications:

Product Name: Mazda MX-5 PRHT roof controller RCNC-2
Manufacturer: MX5things LLC
Model: RCNC-2
Version: Rev 1.1
Control Speed: Up to 30 mph

Hardware Installation:

Fully open the convertible top, lower the windows, and
disconnect the negative battery terminal.
Adjust the seat and remove the plastic cover.
Remove the necessary nut and plugs as instructed in the
manual.
Connect the RCNC-2 wiring harness securely.
Reconnect the battery, turn on the ignition, and check for
successful installation.
Mount the RCNC-2 module and hide the harness
appropriately.
Reassemble everything and configure the module if needed.
Keep the USB cable connected for future updates and
configuration changes.

Operation:

Pressing the roof control button for half a second fully opens
or closes the roof. The operational speed limit can be set up to 30
mph. Auto mode enables automatic roof lowering when opening the top
latch. Roof movement can be paused by switching in the opposite
direction during one-touch operation.

Module Configuration:

Use Windows or Mac software to configure the module.
Configuration can be done before or after installation with car
power off. Keep the USB cable disconnected from the computer for
normal operation. The Status LED indicates CAN bus communication
status with the car.

FAQ:

Q: How do I know if the installation was successful?

A: The LED on the RCNC-2 module should be blinking red,
indicating a successful installation. You can also check operation
using the roof control buttons.

Q: Can I change the operational speed limit after

installation?

A: Yes, you can change the operational speed limit up to 30 mph
using the Speed limit command.

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MX5things LLC

RCNC-2 User Guide

Rev 1.1

Mazda MX-5 PRHT roof controller RCNC-2 installation guide, operation manual, and configuration software.

Overview:
The RFC2-NC controller allows the user to operate the roof mechanism with one- touch of the roof control buttons at selectable speeds up to 30 mph as well as when driving in reverse
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MX5things LLC

RCNC-2 User Guide

Rev 1.1

Hardware Installation:
Tools required: 10 mm socket or ratcheting box wrench. Portable light. Small flat screwdriver.
1. Fully open the convertible top. Lower the windows. Disconnect the negative battery terminal. 2. Move the left seat all the way forward and tilt the back fully forward. 3. Remove the plastic cover (1).

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MX5things LLC

RCNC-2 User Guide

Rev 1.1

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4. Use a 10mm socket or ratcheting box wrench to remove the nut (2), and then flip the metal holder down.
5. Remove the leftmost white plug (3). It is locked into place with latching mechanisms. Push down on the tabs in the middle while pulling the plug and NOT the harness. If necessary, inspect the corresponding plugs on the module harness for a visualization of the latching mechanism.
6. Insert the plug into the matching socket on the RCNC-2 wiring harness. Make sure that they latch securely into place.
7. Insert the RCNC-2 harness plugs into the socket on the car convertible top controller. Again, assure that plug latch securely into place.
8. Plug the RCNC-2 plug into the RCNC-2 module socket. 9. Reconnect battery and turn the ignition fully on. The LED should be now blinking Red (appears as
solid red), indicating a successful installation. Check operation using Roof control buttons. 10. Mount RCNC-2 module using attached Velcro pad and hide harness under the roof control module.

MX5things LLC

RCNC-2 User Guide

Rev 1.1

11. Turn the ignition back off, re-assemble everything, and configure the module according to our Operation and Programming manual if not configured prior to installation.
12. We recommend leaving the USB cable connected to the module and then running it to an accessible
area. This allows easy laptop connection for future updates and configuration changes.
Operation:
One touch fully opens the roof when button pressed a half-second (or until the roof starts moving). The roof fully closes when “close” button pressed for a half-second. The desired operational speed limit can be set using the “Speed limit” command up to a maximum of 30 mph. If “Auto” is enabled, automatic roof lowering will start with opening the top latch. When operating with one-touch, roof movement can be paused by clicking switch in the opposite direction.
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MX5things LLC

RCNC-2 User Guide

Rev 1.1

Module Configuration:
To change module configuration, use the Windows or Mac software. Configuration can be done before installing the module in the car or after the module is installed when the car power is off.
For normal operation, the USB cable must be unplugged from the computer. The Micro USB end can remain connected with the module. The cable can then be routed so that the USB A connector is available for easy access to make future configuration changes.
The Status LED will be on if CAN bus communication with the car is active. The module goes to sleep 2-5 minutes after the car power turns off and the LED will turn off.

Figure 1

Status LED Micro USB port

MX5things LLC

RCNC-2 User Guide

Rev 1.1

Configuration with MS Windows.

1. Download Configuration software for RCNC-2 (MS Windows) from the product page. 2. With car power off, connect the RCNC-2 module to a Windows PC via the Micro-USB cable. The module
status LED will be solid Red. 3. Start application. It will connect to the module automatically.

1. Select new settings and press “Reset” button to activate new settings.

MX5things LLC

RCNC-2 User Guide

Rev 1.1

Alternative configuration method
1. Configuration is implemented via standard terminal console. When using MS Windows, install PuTTY app from Microsoft store.
2. With car power off, connect the RCNC-2 module to a Windows PC via the Micro-USB cable. The module status LED will be solid Red.
3. Select COM port (it will be the new COM port number, after connecting cable).

4. MS Windows users stat PuTTY application and select connection type Serial with new COM port
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MX5things LLC

RCNC-2 User Guide

Rev 1.1

5. After successful connection, a new window will appear. Type help command to see all available options.
6. To change speed limit, type >s 20 (new speed limit value), 7. “>a 0 ” will turn Auto mode off and “>a 1” will turned it On again. 8. To see current setting, type >= 9. Close application and test operation without USB cable connected.
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MX5things LLC

RCNC-2 User Guide

Rev 1.1

Configuration with MacOS
1. With car power off, connect the RCNC-2 module to a Mac via the Micro-USB cable. The module status LED will be solid Red.
2. Open Terminal app. Type sudo ls /dev/tty.usb* to find name of attached device.

3. Type screen /dev/tty.usbmodem14101 (name is example, it could be different). A new screen will appear.
4. Type help to see list of available commands. 5. To change speed limit, type >s 20 (new speed limit value), 6. “>a 0 ” will turn Auto mode off and “>a 1” will turned it On again. 7. To see current setting, type >= 8. Close application and test operation without USB cable connected.
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