AC-44F20 Smart FocusDrive Controller

© 2025 ATOTO Corporation

V2025.1

Preface

Thank you for choosing ATOTO

As an innovative brand with a decade of dedicated expertise in automotive electronics, ATOTO upholds the core philosophy of "Think Beyond, Live Ahead". We seamlessly integrate professional audio-visual technology and user-friendly interactive features to elevate every journey with refreshing experiences.

Copyright Statement

The copyright and related intellectual property rights of ATOTO brand Smart FocusDrive Controller product manuals (including electronic and printed versions) are exclusively owned by ATOTO. Without explicit written authorization from ATOTO, no organization or individual may use the content in any form (including but not limited to copying, distributing, adapting, translating, mirroring, or reposting) for commercial purposes or provide it to third parties.

Permitted Use Scope:

These manuals are provided exclusively for reference by users who have purchased genuine ATOTO Smart FocusDrive Controller products. Users may view, store, or print the content for personal and reasonable needs, but must not remove or alter copyright notices, statements, or product information. The content shall not be used for technical support, promotion, training, or third-party service scenarios involving non-ATOTO products.

Liability Statement:

ATOTO reserves the right to pursue legal action against any party for legal disputes, financial losses, or damage to brand reputation caused by unauthorized use, reproduction, modification of the manual content, or infringement of ATOTO's copyright. For cooperation authorization, content citation, or technical inquiries, please contact ATOTO through official channels (Customer Service Email: support@atotodirect.com).

FCC Compliance Statement:

The FCC Compliance Statement is an official declaration by ATOTO to users indicating that the product complies with the radio frequency interference and electromagnetic compatibility (EMC) regulations of the U.S. Federal Communications Commission (FCC). The specific statement is as follows:

This device strictly complies with all provisions of Part 15 of the FCC Rules.

Operation is subject to the following two conditions:

1. This device must not cause harmful interference；
2. This device must accept any interference received, including interference that may cause undesired operation.

Contact ATOTO Customer Support

If you encounter any issues during installation or use, our support team is ready to assist.

Email: support@atotodirect.com

Scan the QR code to access your product model's online resources, including features, installation guides, and extended warranty details.
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Chapter 1 Important Information

1.1 About this Manual

To ensure proper use of your ATOTO Smart FocusDrive Controller, please be sure to read this user manual thoroughly and understand its contents fully. Keep it in a safe place for future reference.

Important Notes:

1. This manual is applicable to ATOTO AC-44F20 Smart FocusDrive Controller.
2. The information in this manual may be insufficient. If you have any questions or problems concerning your unit that are not covered in this manual, consult customer support.
3. The product design and specifications are subject to change without notice for performance improvement.

1.2 Operation Warnings

To prevent accidents, damage, or improper use, please carefully observe the following safety warnings when using the Remote Controller:

1. Operate the remote only when it is safe to do so while driving. Always remain alert and keep your eyes on the road.
2. Do not place or mount the remote near airbag deployment areas. This may cause injury in the event of an accident.
3. Avoid exposing the remote to extreme temperatures, prolonged direct sunlight, or high humidity.
4. Do not disassemble, puncture, or short-circuit the remote. The built-in lithium battery may cause fire or explosion if mishandled.
5. Keep liquids away from the charging port.
6. If you notice smoke, an unusual odor, or excessive heat while charging, immediately stop charging, unplug the cable, and contact customer support.

Chapter 2 Installation and Setup

2.1 Package Contents

Please ensure all the following items are included in your package.

Items and quantities:

1. Remote Controller — Quantity: 1
2. Signal Receiver Module — Quantity: 1
3. Mounting Bars — Quantity: 2
4. Type-C Charging Cable — Quantity: 1
5. Mounting Screws (Set) — Quantity: 1

2.2 Important Notes Before Installation

This manual uses the ATOTO S8G1104MS head unit as an example for the installation steps.

If you are using a car stereo from another brand, please consult its user manual for detailed instructions on wiring the Signal Receiver Module and accessing the Steering Wheel Control (SWC) key mapping features.

2.3 Mount the Remote Controller

Two mounting options are available to accommodate different dashboard layouts. Both options utilize snap-in Mounting Bars with strong 3M adhesive.

Note: Both long and short Mounting Bars are included. Please use the one that best suits your installation needs.

Option A: Mount to the front of the screen or to the dashboard

Attach the Mounting Bar to the Remote Controller

• Align the back of the Remote Controller with the Mounting Bar.
• Press until it “snaps”/clicks into place and feels firmly locked.
• Make sure the buttons face outward and the Remote Controller is level.

Prepare the adhesive (3M tape)

• If the 3M adhesive strip is not already on the Mounting Bar, apply it to the flat mounting surface of the bar first, then press along the full length to ensure full contact.
• Peel off the red 3M adhesive liner slowly (as shown in the picture) to expose the sticky surface.
• Avoid touching the exposed adhesive with your fingers.

Choose the mounting location and install

• Recommended locations: the front/bottom edge of the screen frame, or a flat area on the dashboard.
• Clean the mounting surface (screen frame/dashboard) with a dry cloth; it must be clean, dry, and free of dust/oil.
• Position the Mounting Bar where you want it (check alignment before sticking).
• Press firmly along the entire Mounting Bar for 20–30 seconds to secure it.

【AI 图解: AC-44F20 mounting location example, showing how to attach the module using the adhesive pad and place it on the vehicle dashboard for installation.】

Option B: Mount Under a Floating Screen

1. Attach the Remote Controller to the Mounting Bar (top clip)

• Align the top edge of the Remote Controller with the Mounting Bar’s clip/groove.
• Press down until it snaps/clicks into place.
• Gently pull to confirm it’s locked and won’t slide off.

1. Prepare the 3M adhesive on the Mounting Bar

• Confirm the 3M tape is applied to the flat back side of the Mounting Bar.
• Peel off the red 3M liner slowly to expose the adhesive.
• Do not touch the exposed adhesive surface.

1. Choose the mounting position under the floating screen

• Locate a flat, clean area underneath the floating screen (the underside of the screen housing or a flat trim area directly below it).
• Make sure the Remote Controller will not block: screen movement/adjustment, vents, hazard switch, or other controls.
• Check that there is enough clearance so the Remote Controller won’t rub against the dashboard while driving.

1. Clean the mounting surface (critical for under-screen mounting)

• Wipe the underside mounting area with a clean, dry cloth.
• The surface must be dry, dust-free, and oil-free before sticking.

1. Stick the Mounting Bar under the floating screen

• Carefully align the Mounting Bar first (do a quick “test fit” before contact).
• Press the Mounting Bar firmly along its full length for 20–30 seconds to ensure full adhesion.

【AI 图解: AC-44F20 mounting location example, showing how to attach the module using the adhesive pad and place it on the vehicle dashboard for installation.】

Important Note:

3M adhesive is not suitable for the following surfaces:

● Leather, fabric, or cloth surfaces

● Silicone, rubber, or oil-coated/non-stick materials

● Rough, textured, or uneven surfaces

For the best adhesion, ensure the mounting surface is clean, dry, and free of dust or oil before installation.

2.4 Connect the Signal Receiver Module

Connect the Signal Receiver Module's wires as follows:

(Black) GND → Chassis Ground (-)

(Red) ACC → Accessory / Ignition (+)

(White) KEY 1 → Steering Wheel Key1 (+)

Important: Ensure all connections are secure. If you are unsure about any step, we recommend consulting a professional installer.

Once the wiring is complete, the Remote Controller and the Signal Receiver Module will pair automatically. No manual pairing is required.

Before first use, you must assign functions to the Remote Controller's buttons using your head unit's SWC (Steering Wheel Control) Learning or setup menu.

Chapter 3 SWC (Steering Wheel Control) Learning Operation

The Remote Controller allows you to assign custom functions to its buttons and knob using your car stereo's built-in SWC (Steering Wheel Control) Learning feature.

The following instructions will guide you through the setup process, using the ATOTO S8G1104MS head unit as an example.

Step 1: Enter the SWC Learning Menu

On your head unit, navigate to: Settings → General → Set up Steering Wheel Audio Key.

This screen will display a list of available functions that you can assign to the buttons and the rotary knob of your Remote Controller.

Step 2: Begin SWC Learning

1.First, tap the desired function on the screen (e.g., 'Home'). The selected function will typically change color or become highlighted.

2.While the function is highlighted, press the button on the Remote Controller that you wish to assign to it. A confirmation message usually appears once the assignment is successful.

Step 3: Continue Assigning Functions

Repeat the process for all other buttons, including both the clockwise and counter-clockwise rotations of the rotary knob.

Note: You do not have to assign a function to every button or rotation. You can leave any of them unassigned if you prefer.

Step 4: Save and Exit

Once you have finished assigning all desired functions, tap "Save and Exit" to complete the setup.

Your Remote Controller is now ready to use with the custom functions you have assigned.

Important Note：

The steps and menu names for accessing the SWC (Steering Wheel Control) Learning function can vary significantly between different brands and models of head units. For specific instructions, please consult the user manual provided with your car stereo.

Button Function Guide

The icons on the Remote Controller's buttons suggest their recommended functions. While you can customize these assignments, the table below outlines their intended use:

Voice | Activates the voice assistant
Home | Returns to the home screen of the car stereo
Previous track | Skips to the previous track or radio station
Power | Press to wake the screen or put it to sleep
Rotary Knob | Rotate Counter-clockwise: Volume Down; Rotate Clockwise: Volume Up
Next track | Skips to the next track or radio station
Answer call | Answers an incoming call
Hang up/Reject | Ends the current call or rejects an incoming call

Full Customization

Please remember that these are only recommendations. You have the complete flexibility to assign any function available in your head unit's SWC menu to any button or rotary knob to best suit your personal preferences.

Chapter 4 Charging the Remote Controller

• Charging Indicator:

The charging status is indicated by the light on the Power button:

Solid Red: Charging in progress

Light Off: Charging complete

• Charging Guidelines:

【AI 图解: AC-44F20 power port location, showing where to plug in the charging/power cable on the module.】

Please use the included Type-C Charging Cable to charge the Remote Controller.

To ensure battery longevity, avoid using fast-charging adapters. A standard 5V USB power source is recommended.

A full charge typically lasts for 3–4 months with average daily use (4–5 hours per day).

• Power-Saving Feature:

To conserve power, the button backlight will automatically turn off after 5 seconds of inactivity.

Chapter 5 Troubleshooting

If you encounter any issues with your Remote Controller, please consult the table below to find a solution.

Troubleshooting

Issue: The Remote Controller is unresponsive (no backlight when buttons are pressed).
Possible Cause(s):

1. The battery is depleted.
2. The Signal Receiver Module is not receiving power.
3. The wiring to the Signal Receiver Module is loose or incorrectly connected.
4. Button functions have not been assigned yet.
   Solution(s):
5. Charge the Remote Controller using a standard 5V USB power source.
6. Make sure the car stereo is powered on and that the Signal Receiver Module is properly connected to the ACC power source.
7. Carefully inspect and secure all related wiring connections, including GND, ACC, and KEY 1.
8. Complete the Steering Wheel Control (SWC) key mapping process in the head unit’s settings menu.

Issue: The Remote Controller lights up, but the car stereo does not respond.
Possible Cause(s):

1. The SWC key mapping process was unsuccessful or incomplete.
2. The KEY 1 wire is connected to an incorrect port on the head unit.
   Solution(s):
3. Repeat the entire SWC key mapping process and ensure each step is properly confirmed on the head unit’s screen.
4. Refer to the car stereo’s user manual and verify the correct KEY 1 / SWC wiring connection.

Issue: The Remote Controller becomes hot or emits a strange smell while charging.
Possible Cause(s):
A potential battery failure or internal circuit fault.
Solution(s):
Safety Warning: Immediately unplug the charging cable. Do not continue using the device. Contact customer support for further assistance.

Issue: Battery life is significantly shorter than expected.
Possible Cause(s):

1. Frequent or heavy usage requires more regular charging.
2. The battery may be approaching the end of its service life.
   Solution(s):
3. This can be normal under heavy usage; recharge the device as needed.
4. If battery life remains unusually short under light usage, contact customer support.

Issue: Cannot assign functions to buttons in the SWC Learning menu.
Possible Cause(s):

1. You are not in the correct SWC learning menu on the head unit.
2. The car stereo model does not support wired SWC learning.
3. The Signal Receiver Module is not properly connected.
   Solution(s):
4. Exit the current menu and re-enter the correct SWC learning menu carefully.
5. Check the car stereo’s user manual to confirm that wired SWC learning is supported.
6. Double-check all wiring connections related to the Signal Receiver Module.

Issue: Only some buttons, or only one rotation direction of the knob, works after setup.
Possible Cause(s):
Not all buttons and/or knob rotation directions were assigned functions during setup.
Solution(s):
Repeat the SWC key mapping process, ensuring that a function is assigned to every button and to both clockwise and counter-clockwise knob rotations.

Chapter 6 Specifications

Below are the detailed technical specifications for your Remote Controller.