AXTC-HN1 2016-2024 Honda SWC Steering Wheel Control and Data Interface

Specifications

  • Product Model: AXTC-HN1
  • Compatible Vehicles: Honda Civic (2016-2024), Honda Civic
    Coupe, Sedan LX, LX-P (2016-2021), Honda Civic Hatchback LX, Sport
    (2017-2021), Honda Fit (2018-2020)
  • Features: Steering Wheel Control and Data Interface, Reset
    Button, LED, 3.5mm Adapter

Product Usage Instructions

Connections

Before starting the installation process, disconnect the
negative battery terminal with the key out of the ignition. Ensure
all connections are made properly before reconnecting the
battery.

If the vehicle’s Steering Wheel Controls do not function after
programming, follow these steps:

  1. Unplug connector E1 from connector E and connect E2 to E.
  2. Hit the reset button on the interface to restart the
    programming sequence and test.

RADIO CONNECTIONS

  • Make radio connections as per the specified wire colors for
    each speaker and signal.
  • Ground all black wires together.
  • Connect camera power wires (Red & Blue/Red) and accessory
    power wires (Red & Blue/White) accordingly.

Programming

    1. Open the driver’s door and keep it open during the programming
      process.

FAQ

Q: Which Honda Civic models are supported by the AXTC-HN1?

A: The AXTC-HN1 is compatible with Honda Civic models from 2016
to 2024, excluding Type R, Touring, Si, and Hybrid variants.

Q: What should I do if the Steering Wheel Controls do not work
after installation?

A: If the Steering Wheel Controls do not function after
programming, try unplugging connector E1 from connector E and
connecting E2 to E. Hit the reset button on the interface to
restart the programming sequence.

“`

AXTC-HN1
INSTALLATION INSTRUCTIONS

APPLICATIONS
Honda Civic (with 7″ screen) ……………………………………. 2022-2024* Civic (Coupe, Sedan) LX, LX-P………………………….2016-2021
*Type R, Touring, Si, and Hybrid not supported

Honda SWC (Steering Wheel Control)

and Data Interface 2016-2024

Visit AxxessInterfaces.com for more detailed information about the product and up-todate vehicle specific applications.

INTERFACE FEATURES

· Provides illumination, parking brake, reverse, and speed sense outputs
· Retains the factory backup camera, and also includes an 12-volt to 6-volt step-down converter (AXCSD-6V)
· Retains audio controls on the steering wheel
· Designed to be compatible with all major radio brands

· Auto detects vehicle type, radio connection, and preset controls
· Ability to dual assign steering wheel control buttons
· Retains memory settings even after battery disconnection or interface removal (non volatile memory)
· Micro-B USB updatable
Product Info

Civic (Hatchback) LX, Sport …………………………….. 2017-2021 Fit ………………………………………………………………… 2018-2020

TABLE OF CONTENTS Connections……………………………………………………2 Programming………………………………………………… 3 Troubleshooting……………………………………………..4
INTERFACE COMPONENTS · AXTC-HN1 interface · AXTC-HN1 harness · 3.5mm adapter · AXCSD-6V
TOOLS & INSTALLATION ACCESSORIES REQUIRED · Crimping tool and connectors, or solder gun, solder, and heat shrink · Tape · Wire cutter · Zip ties
ATTENTION: With the key out of the ignition, disconnect the negative battery terminal before installing this product. Ensure that all installation connections, especially the air bag indicator lights, are plugged in before reconnecting the battery or cycling the ignition to test this product. NOTE: Refer also to the instructions included with the aftermarket accessory before installing this device.

AxxessInterfaces.com

© COPYRIGHT 2024 METRA ELECTRONICS CORPORATION

REV. 11/27/24 INSTAXTC-HN1

CONNECTIONS

Reset Button

AXTC-HN1

LED
NOTE: If the vehicle’s Steering Wheel Controls do not function after the AXTC-HN1 has completed its programing sequence, unplug connector E1 from connector E and connect E2 to E. Once completed, hit the reset button on the interface to restart the programming sequence and test. Refer to LED Feedback Chart for programming information if needed.
3.5mm Adapter (for vehicles without Steering wheel controls or aftermarket radios with a wire for SWC)
Boss (with SWC wire): Key 1 (Gray) – Brown Kenwood / JVC (with SWC wire): Blue/Yellow – Brown
XITE: SWC-2 – Brown
{ Universal Key-A or SWC-1 – Brown
Radio* Key-B or SWC-2 – Brown/White * After programming, assign SWC buttons within radio menu

E1

E

E2

Aftermarket Radio Front (radio’s features may vary)

Rear View Rear

AUX-IN

Sub

SWC

3.5mm Adapter for Vehicles without Steering wheel controls 1) From the 3.5mm adapter, tie the Brown and Brown/White wires together with tape or connector 2) Connect the 3.5mm adapter to the 3.5mm jack from the AXTC-HN1 Harness 3) Program the AXTC-HN1 per the instructions on page 3. Disregard steps 4 & 5
2

AXCSD-6V

*Harness #

LD-AFDI-5V *

VEHICLE CONNECTORS

RADIO CONNECTIONS
Gray – Front right speaker + Gray/Black – Front right speaker White – Front left speaker + White/Black – Front left speaker Green – Rear left speaker + Green/Black – Rear left speaker Purple – Rear right speaker + Purple/Black – Rear right speaker Blue/Pink – VSS/Speed-Sense Green/Purple – Reverse signal Light Green – Parking brake Blue/White – Amp turn-on Orange – Illumination Yellow – Battery power

SWC GROUND

Black & Black X2 – Ground
(Connect All Grounds Together)

CAMERA POWER 6V

Red (CAMERA POWER 6V) & Blue/Red – Camera Power Red & Blue/White – Accessory power

PROGRAMMING

1.

Open the driver’s door, and keep open during the programming process. 6.

The LED will go out, then once again quickly flash Green & Red while

the interface programs itself to the vehicle. Once programmed, the LED

Green & Red LED will go out again, then turn solid Green.

OF F

START

2.

ACC ON

Cycle the ignition on.

Green LED

7.

ACC ON

Cycle the ignition off, then back on.

START

OF F

3.

Connect the AXTC-HN1 harness to the AXTC-HN1 interface, and then to

the wiring harness in the vehicle.

ACC ON

START

OF F

4. Tap Volume Up Locate the Volume Up button on the steering wheel. Program the interface 8.

VOL

by tapping the Volume Up button at a heartbeat pace until the LED light

+

stops flashing.

* Only applicable if vehicle came with steering wheel controls

5*.

The LED will flash Green & Red while the interface programs the radio to

the steering wheel controls. Once programmed, the LED will go out, then

Green & Red LED produce a pattern which will identify the radio type installed. Refer to

the Radio LED Feedback section under Troubleshooting for radio types.

Green or Red LED *Only applicable if vehicle came with steering wheel controls

Test all functions of the installation for proper operation.
Note: If the vehicle’s Steering Wheel Controls do not function after the AXTC-HN1 has completed its programing sequence, unplug connector E1 from connector E and connect E2 to E. Once completed, hit the reset button on the interface to restart the programming sequence and test. Refer to LED Feedback Chart for programming information if needed.
REV. 11/27/24 INSTAXTC-HN1 3

AXTC-HN1
INSTALLATION INSTRUCTIONS

TROUBLESHOOTING

1.

If the interface fails to function, 2. Final LED Feedback

press and release the reset button, then repeat the programming process from step 4 to try again.

At the end of programming the LED will turn Solid Green which indicates programming was successful. If the LED didn’t turn Solid Green, reference the list below to understand which programming section the problem may stem from.

LED

Reset

Light

Button

QR Code Scan Here
Further troubleshooting steps and information can be located at: axxessinterfaces.com/product/AXTC-HN1

LED Light
Solid Green Slow Red Flash Slow Green Flash
Solid Red

Radio Programming
Section Pass Fail Pass Fail

Vehicle Programming
Section Pass Pass Fail Fail

Note: If the LED shows Solid Green for Pass (indicating everything programmed correctly), yet the steering wheel controls don’t work, make sure that the 3.5mm jack is plugged in, and plugged into the correct jack in the radio. Once corrected, press the reset button, then program again.

Having difficulties? We’re here to help. Contact our Tech Support line at:
386-257-1187
Or via email at: techsupport@metra-autosound.com Tech Support Hours (Eastern Standard Time) Monday – Friday: 9:00 AM – 7:00 PM Saturday: 10:00 AM – 5:00 PM Sunday: 10:00 AM – 4:00 PM
Metra recommends MECP certified technicians

AxxessInterfaces.com

© COPYRIGHT 2024 METRA ELECTRONICS CORPORATION

REV. 11/27/24 INSTAXTC-HN1

Documents / Resources

AXXESS AXTC-HN1 2016-2024 Honda SWC Steering Wheel Control and Data Interface [pdf] Instruction Manual
AXTC-HN1 2016-2024 Honda SWC Steering Wheel Control and Data Interface, AXTC-HN1, 2016-2024 Honda SWC Steering Wheel Control and Data Interface, Steering Wheel Control and Data Interface, Wheel Control and Data Interface, Data Interface

References

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