<em>Nissan Note E12</em> steering wheel buttons: a complete guide to selection, installation and integration

Owners Nissan Note E12 (2012–2020) are often faced with the need to upgrade their media or cruise control controls. The standard steering wheel of this generation is not always equipped with buttons for switching tracks, volume or answering calls - especially in the basic trim levels. Installing additional buttons solves the problem, but requires knowledge of the nuances: from compatibility with CAN bus until properly connected to the radio.

In this article we will analyze all stages - from the selection of original and universal buttons to step-by-step installation and configuration instructions. We will place special emphasis on typical mistakes that lead to non-functioning buttons or errors on the dashboard. We will also consider integration options with popular multimedia systems: Android Auto, Apple CarPlay and standard head units Nissan.

Which buttons are suitable for Nissan Note E12: original vs universal solutions

The first question that owners have is what buttons to choose? There are two ways here: original parts from Nissan or universal kits from third parties (for example, Metra, PAC, Connects2). Each option has pros and cons.

Original buttons (articles: 28521-JM00A, 28521-4M00A) guarantee 100% compatibility with CAN bus car and standard electrics. They fit perfectly into the seats on the steering wheel, but their price can reach 5–8 thousand rubles per set. In addition, original buttons are often sold only as an assembly with a steering column switch, which complicates the search.

Universal buttons cheaper (from 1.5 thousand rubles), but require additional adapters to connect to CAN bus or radio. Popular models:

• 🔄 Metra AX-CANNIS01 - adapter for integration with Android Auto/Apple CarPlay.
• 🎵 PAC RP4-NIS11 - Supports music and call control.
• ⚙️ Connects2 CTNI23 — a universal interface for standard and after-market radios.

When choosing universal buttons, pay attention to CAN bus protocol your Note E12. Cars 2012–2016 often used CAN-BUS Low Speed, and newer models (2017+) can work on CAN-BUS High Speed. A protocol mismatch will result in the buttons either not working or causing an error. U1000 (loss of connection with the module).

Multimedia Compatibility: What You Need to Know

The buttons on the steering wheel interact with the radio via CAN bus or analog input (for universal solutions). If in your Nissan Note E12 standard radio installed Nissan Connect (models 28210-JM00A, 28210-4M00A), then the original buttons will work out of the box. With aftermarket devices (e.g. Pioneer, Sony, Alpine) an adapter is required.

Here is the compatibility table for popular radios and adapters:

Multimedia system	Required adapter	Supported Features
Regular Nissan Connect	Not required	Switching tracks, volume, Hands-Free
Pioneer AVH-X (with Android Auto)	Metra AX-CANNIS01	Tracks, volume, voice assistant
Sony XAV-AX (with Apple CarPlay)	PAC RP4-NIS11	Tracks, volume, call answer/hang up
Alpine Halo9	Connects2 CTNI23	Full functionality + button customization

⚠️ Attention: If you are installing universal buttons with an adapter, check whether your radio supports resistive input (for analog buttons) or digital protocol (for CAN bus). For example, budget Chinese radios often cannot work with adapters PAC or Metra, which leads to the buttons getting stuck.

Step-by-step instructions for installing buttons on the steering wheel

Installing buttons on the steering wheel Nissan Note E12 includes three stages: disassembling the steering wheel, wiring connection And setting up the radio. Let's look at each step in detail.

1. Removing the steering column switches and steering wheel

To access the button contacts, you must remove the lower part of the steering column and the steering wheel paddle shifters. Procedure:

1. Disable battery (removing the negative terminal).
2. Remove the plastic trim under the steering wheel by releasing the clips (use a plastic spatula to avoid damaging the clips).
3. Unscrew the two bolts securing the steering column switch (usually a Phillips screwdriver).
4. Carefully disconnect the switch connector from the steering column.

⚠️ Attention: On Nissan Note E12 with electric power steering (EPS) Do not turn the steering wheel when the battery is disconnected - this may damage the control unit. If you need to turn the steering wheel for convenience, first turn on the ignition.

2. Connecting buttons to the CAN bus or adapter

If you install original buttons, just connect the connector to the standard socket. For universal buttons you will need:

• 🔌 Connect an adapter (for example, Metra AX-CANNIS01) to CAN-H And CAN-L on the diagnostic connector (usually pins 6 and 14).
• 🎛️ Connect the wires of the buttons to the corresponding terminals of the adapter (see diagram in the instructions).
• 🔄 Check the polarity of the connection - incorrect pinout can cause a short circuit.

Is the adapter connected to the CAN bus?|Does the pinout of the buttons match the instructions?|Is the battery disconnected?|Have the contacts been checked for oxidation?-->

For radios with Android Auto or Apple CarPlay Additional settings may be required in the head unit menu. For example, in Pioneer need to go to Settings → Controls → Setting up steering wheel buttons and select the protocol Nissan CAN-BUS.

3. Assembly and testing

After connection:

1. Reinstall the steering column switches and secure with bolts.
2. Connect the battery and turn on the ignition.
3. Check the operation of the buttons: switching tracks, adjusting volume, answering calls.

If the buttons do not respond, check:

• 🔍 Correct connection of the adapter to the CAN bus.
• 🔌 Integrity of wires (especially if soldering was used).
• 📱 Compatibility of the radio firmware with the adapter.

Common mistakes and how to avoid them

Even with careful installation, owners Nissan Note E12 are facing problems. Here are the most common mistakes and ways to solve them:

1. Buttons do not work correctly (double press, freeze)

Reason: incompatibility of the adapter protocol with the radio or CAN bus car. Solution:

• Update the adapter firmware (for example, for Metra AX-CANNIS01 current version - v1.05+).
• Check your radio settings: on some models Pioneer you need to manually select the connection type (Resistive or CAN-BUS).

2. An error appeared on the dashboard U1000 or C1130

Cause: The adapter interferes with CAN bus, and the control unit perceives this as a malfunction. Solution:

• Disconnect the adapter and check if the error goes away.
• Use noise filter (For example, CAN-BUS Filter from Connects2).
• Connect the adapter to another power source (not directly to the CAN bus).

3. Buttons only work when the ignition is on

Reason: the adapter or radio does not receive constant power (+12V). Solution:

• Connect the yellow wire of the adapter to ACC+ or Battery+ (depending on the instructions).
• Check the media circuit fuse (usually F35 at 10A in the block under the steering wheel).

⚠️ Attention: If after installing the buttons they stop working steering wheel shift paddles (on models with CVT), this means that the adapter is conflicting with the transmission control unit. In this case you will have to use isolated CAN adapter (For example, iDatalink Maestro).

Setting up buttons for Android Auto And Apple CarPlay

If you use a smartphone for multimedia, the buttons on the steering wheel can be programmed to control Android Auto or Apple CarPlay. To do this:

For Android Auto:

1. Connect your phone to the radio via USB.
2. Run Android Auto and go to Settings → Transport → Button settings.
3. Select a function for each button (e.g. Previous Track, Voice Assistant).

For Apple CarPlay:

1. Activate CarPlay on the radio.
2. In your iPhone settings, go to Basic → CarPlay.
3. Select your car and configure the button assignments in the section Control panel.

Some adapters (eg Metra AX-CANNIS01) allow you to reassign buttons through the mobile application. For example, you can program a long press on the volume button to activate Google Assistant or Siri.

How to reset button settings to factory settings?

If the buttons begin to work incorrectly after reassignment, perform a reset:

1. Disconnect the battery for 10 minutes.

2. Plug it back in and turn on the ignition.

3. Press and hold the volume “+” and “–” buttons simultaneously for 10 seconds.

This will return the adapter to factory settings.

Review of prices and where to buy components

The cost of buttons and adapters varies depending on the type and manufacturer. Here are the current prices for 2026:

Accessories	Price, ₽	Where to buy
Original buttons Nissan (art. 28521-JM00A)	5 000 – 8 000	Official Nissan catalog, Exist.ru
Universal buttons Metra + adapter AX-CANNIS01	3 500 – 5 000	AutoSound, CarSolutions, AliExpress (official stores)
Adapter PAC RP4-NIS11	2 800 – 4 000	Amazon, eBay, I'll take it
Set of wires + clips for connection	500 – 1 200	Any auto shop (for example, AutoSpetsCenter)

When purchasing on AliExpress or eBay pay attention to reviews - you often come across non-original adapters that do not work with Nissan Note E12. It is better to buy from trusted sellers, for example:

• 🛒 Car Solutions Russia (official dealer Metra).
• 🛒 AutoSound (1 year warranty on adapters).
• 🛒 Exist.ru (for original parts).

⚠️ Attention: When purchasing used buttons or adapters, check them for functionality before installation. Often sellers do not indicate that the part was removed from a damaged car or has damaged contacts.

FAQ: Frequently asked questions about steering wheel buttons Nissan Note E12

Is it possible to install buttons on the steering wheel if I do not have a standard radio?

Yes, but it will be required universal adapter (For example, Connects2 CTNI23) and a radio with support for external buttons. Please note that some Chinese radios (for example, Joying, Xtrons) are not compatible with adapters for Nissan - check this before purchasing.

Why did the steering wheel lights stop working after installing the buttons?

Most likely, during disassembly you damaged the backlight contacts or connected the connector incorrectly. Check the circuit +12V on contact B20 (in the connector of the steering column switch). Also make sure that the backlight bulbs have not burned out - on Note E12 they often fail when short circuited.

Is it possible to reassign the buttons to suit your needs (for example, make the volume button launch the rear view camera)?

It depends on the adapter. Metra AX-CANNIS01 And iDatalink Maestro allow you to reassign buttons through a mobile application or radio software. For example, in Pioneer this is done in the menu Settings → Controls → Button remapping. However, the original buttons Nissan do not support reassignment - their functions are strictly written in the control unit.

How to check if the CAN bus is working on my Nissan Note E12?

To check the CAN bus you will need diagnostic scanner (For example, Launch X431 or ELM327 with support Nissan). Connect the scanner to the connector OBD-II and check for connection with the blocks BCM (Body Control Module) and ABS. If the scanner does not see these modules, the problem may be a broken CAN bus or a faulty fuse box.

Do I need to flash the radio after installing the buttons?

Firmware is required only in two cases:

1. If the radio does not recognize the adapter (for example, it gives an error No Steering Wheel Control).
2. If you are using unofficial firmware (for example, Android on the standard radio).

For most aftermarket devices (Pioneer, Sony, Alpine) just update the adapter firmware to the latest version.