NexLink OBDII/EOBD Diagnostic Interface

NEXAS

User Guide

www.nexastech.com

V1.20210119

-v-

Table of Contents

1. Product Description ........................................... 1

2. Vehicle Compatibility ......................................... 2

3. Product Specifications ....................................... 3

4. Supported devices ............................................. 4

5. Supported Protocols .......................................... 4

6. Recommended Third Party Apps ....................... 5

7. Device Setup Instructions ................................ 11

8. App Settings and Connect ............................... 12

9. FAQ and Troubleshooting ................................ 19

10. Support and Warranty .................................... 23

-1-

1. Product Description

The NexLink is an easy-to-use and small OBDII/EOBD Bluetooth

Interface that turns your smart phone, tablet or laptop into a

sophisticated diagnostic scan tool and real-time performance

monitor. Read and clear engine trouble codes, display live sensor

readings and more with the use of a downloaded OBDII App. The

device works with cars and light trucks that are OBDII compliant.

Note:

It's recommended that you unplug the device if it will not be

used for some time (on cars with old batteries, the time should

be shorter).

Do not operate the app when driving. Always be safe and focus

on driving.

Simply erasing the trouble code does not mean the fault have

been solved. You should repair your vehicle as soon as

possible.

-2-

Not all trouble codes can be read out as OBDII is specially

designed for engine system diagnostics other than systems

like ABS, SRS, VSC, TPMS etc. Use different protocols to

communicate so check the app capabilities. Generally what

you can do with the device on your car depends on what

features the app provides.

2. Vehicle Compatibility

The NexLink Interface could work with all 1996 and newer cars

and light duty vehicles (mini van, SUVs, pickups, etc) sold in the

United States, European vehicles after 2002, Asian Vehicles after

2006, must be OBDII compliant. A small number of 1994 and

1995 model year gasoline vehicles are also OBDII compliant

(Please check the emission label under the hood for text saying it

is OBDII/EOBD certified). Vehicles in other regions that are

OBDII/EOBD/JOBD compliant are also compatible:

Argentina - 2008(domestic), 2009(imports)

-3-

Australia - 2006(Petrol), 2007(diesel)

Brazil - 2007(Petrol)

Canada -1998

China - 2008(Petrol), 2011(diesel)

European Union-2002 (Petrol), 2004(diesel)

India - 2010

Israel - 2003

Japan - 2006

Mexico - 2006

New Zealand - 2006(Petrol), 2007(diesel)

Russia - 2010

South Korea - 2007

3. Product Specifications

Interface: Bluetooth(BT V5.0 Dual mode Module)

Operating voltage: 8V ~ 18V DC

Operating current: Max 37mA@12V (Typical)

-4-

Power consumption: < 0.45W (Typical)

Operating temperature: -4°F~122°F / -20°C~50°C

Storage temperature: -4°F~158°F / -20°C ~70°C @ RH60%

4. Supported devices

Apple / iOS: (iPhone, iPad, iPod touch, mac)

Android: Smart phones, Tablets (May not work with some

Android head units / stereos)

Windows: Bluetooth-enabled PCs, Laptops.

5. Supported Protocols

Legislated OBDII protocols:

ISO15765-4 (CAN)

ISO14230-4 (Keyword Protocol 2000)

ISO9141-2

J1850 VPW

J1850 PWM

-5-

6. Recommended Third Party Apps

(Please search these Apps in either iOS store or Google Android

Market and install it. Please be aware that the Fee listed is for

reference only and may change sometimes. Some apps offer

inside-app purchase. Check out with the APP provider):

Torque Lite/Pro (Android only):

Most popular OBDII performance and diagnostic tool for

Android, support importing PIDs (get fault codes, sensor data

and more).

CAR SCANNER ELM OBDII (Android, iOS, Windows):

See what your car is doing in real-time, get OBD fault codes,

car performance, sensor data etc. (Most features for free).

DashCommand (Android, iOS):

$9.99, turn your phone / tablet into an advanced display for

-6-

your engine data and check why the check engine light keeps

going on.

Carista OBDII (Android, iOS):

Diagnose, customize, and service your car, shows you a list of

the fault codes stored in your vehicle, as well as their meanings.

You can also reset the "Check Engine" light. (dealer-level

technology for Audi, VW, Toyota, Lexus, BMW, etc.)

OBD Fusion (Android, iOS): $9.99;

Read DTCs & clear check engine light, create customized

dashboards, estimate fuel economy, and much more, plus

enhanced diagnostics for Ford, Lincoln, Mercury, Mazda,

Toyota, Lexus, Scion, Nissan vehicles.

DashCommand (Android, iOS):

$9.99, turn your phone / tablet into an advanced display for

your engine data and check why the check engine light keeps

going on.

BimmerCode (Android, iOS):

Code the control units in your F/G series BMW or Mini made

-7-

simple.

BimmerLink (Android, iOS):

Read trouble codes from all ECUs and display sensor values in

real-time, check the current state of the DPF in your car or

register a new battery after replacement for BMW or Mini.

OBD Auto Doctor (Android, iOS, windows, mac):

Read readiness monitor status, On-Board Diagnostic Monitors,

Diagnostic Trouble Codes (DTCs), Freeze Frame, and clear

the codes and MIL; View OBDII parameter and sensor data in

real-time to detect abnormalities; Monitor OBDII sensor data in

numerical or graphical presentation; Support for multiple

electronic control units such as engine, transmission, etc.

Leafspy (Android, iOS):

For Nissan Leaf owners to monitor the battery and other

vehicle information normally visible only to the dealer.

Dr. Prius (Android, iOS):

Help professional Toyota / Lexus hybrid repair shop or owners

to examine the health of the High Voltage battery.

-8-

TrackAddict (Android, iOS):

OBDII Live Monitor, Code Scanning / Reset, and Data Logging.

Harry's LapTimer (Android, iOS):

The advanced tool for car enthusiast. It records all types of

sensor data provided by your smart phone (or external

sensors), combines them, and makes them available to

optimize your drive.

Piston (Android only):

The application designed with the simplicity in mind.

InCarDoc (Android, iOS):

Check Engine codes reading, diagnostic, monitoring and

logbook tool: reads real-time and stored diagnostics

parameters from ECU of OBDII compliant cars.

FORScan (Android, iOS):

The application was developed specially for a computer

diagnostic of Ford, Mazda, Lincoln and Mercury vehicles; Read

and reset diagnostic trouble codes (DTC) for all modules; Read

sensors and other data (PIDs) from all modules;

-9-

JScan (Android, iOS):

It is powerful Jeep diagnostic application.

Motoscan ( Android):

With NexLink Adapter most current BMW motorcycles (C, F, G,

K,R,S and Husqvarna series) can be completely diagnosed

(Version 1.66 or higher). An inexpensive solution for all hobbyists

and professional screwdrivers that we have developed based on

many inquiries from BMW bikers. Read ID, read and clear trouble

codes, read live data, actuator test, engine service interval,

coding and adaptation and other service function. It has different

versions, some free, some not.

TuneECU (Android):

Motorbikes diagnostic for Triumph, Aprilia, Benelli, Ducati & Moto

Guzzi, Morini, Gilera, Husqvarna, KTM, BMW & CCM. Etc. Read

ID, read and clear trouble codes, read live data, actuator test,

engine service interval, coding and adaptation and other service

function.

-10-

HybridAssistant (Android):

Hybrid Assistant is a free Android App that helps you get the most

out of your Toyota / Lexus Hybrid cars, Ford Mondeo, Hyundai

Loniq Hybrid and Plugin, KIA Niro Hybrid and Mitsubishi

Outlander PHEV.

Hybrid Assistant gives you access to all the relevant HSD

information with ease, and help you achieve better results in your

driving: by looking at the internal parameters of the HSD engine,

such as Fuel Estimate, Engine Power, Engine State, Battery

Power, Braking, HV Temperature/ Fun and HV Check, so you can

optimize your fuel efficiency and reach driving Nirvana.

More Apps may be added up and the compatibility list could

be longer. Contact us if you have any questions or

suggestions regarding Apps compatibility.

-11-

7. Device Setup Instructions

Step 1: Download and install the APP on your phone / tablet.

Step 2: Locate the OBDII diagnostic port and Plug the device into

the 16-Pin Data Link Connector (DLC) of your vehicle. Make sure

the connection is good. “RED LED” always on for power

indication. “BLUE LED” flashes when plug in for paring or in

communication with ECU. When no communication, the “BLUE

LED” might be off.

Step 3: Turn ignition key to the ON position (or start up the

vehicle running at idle speed).

Step 4: Enable Bluetooth on your phone / tablet.

(On iOS devices: You will see "NEXAS" on the list of Bluetooth devices, but

DO NOT pair with it from here. Please go to the next step directly.

On Android or Windows devices: Pair with "NEXAS" in Bluetooth settings of

the devices and connect it by inputting a PIN of 1234)

Step 5: Run the APP, make the connection settings and connect.

(Please refer to the detailed instructions and Connection /

settings for each App in Part 8.)

-12-

Note: Turn the ignition OFF before plugging in and remove

this OBDII device from your vehicle after use.

8. App Settings and Connect

(Use Bluetooth LE for iOS apps. For Android Apps, use

Bluetooth instead of Bluetooth LE)

The name format of the device is: NEXASYYMMXXXX

Torque Lite / Pro(Android only) :

Go to the applications settings menu

Select the "OBD2 Bluetooth Settings"

Scroll down the list of items until you see 'Connection Type' in

the list. Make sure this is set to 'Bluetooth'

Scroll down to the Bluetooth preferences section, select

'Choose Bluetooth Device' and select the adapter you paired

with earlier (in the system setting).

-13-

OBD Fusion(Android, iOS) :

Settings > Preferences > Communications> Communication

Type > Select Bluetooth LE(iOS) / Bluetooth(Android)

DashCommand (Android, iOS):

Settings > OBDII adapter > Bluetooth Device

CAR SCANNER ELM OBDII (Android, iOS, Windows):

Go to Settings (click on the gear icon in the upper right corner).

Select “Connection”

Select “Connection Type”: Bluetooth 4.0 (LE)

Click the “Select Device” button. You will be taken to the

Bluetooth LE (4.0) nearby device search window.

Wait until your adapter is detected and click on it. If the adapter

is not found within 5-10 seconds, click on the “Refresh” button

to retry the search.

-14-

Carista OBDII(Android, iOS) :

Make sure your phone / tablet’s Bluetooth is turned on.

There’s prior setup, pairing, or connecting necessary for

android.

When the Carista app asks you what kind of adapter you’re

using: select “Carista”.

The app automatically detects your device and connects to it.

BimmerCode / BimmerLink(Android, iOS) :

Open adapter settings in the app and make sure the correct

adapter type is selected.

Tap “Connect” on the start screen in the app.

OBD Auto Doctor(Android, iOS, windows, mac) :

Extras > Connectivity > Adapter select 'Bluetooth' > Choose

one of the 'Device'(such as ‘LE Link’)

-15-

Leafspy(Android, iOS) :

Go to Configure (click on the “≡ three line icon” in the upper

right corner).

Click on “Select OBDII”

Select “Bluetooth Paired Devices”

Choose Device “NEXAS”

Dr. Prius(Android, iOS) :

Select “Bluetooth Low Energy”

Click on ‘Connect OBD’

TrackAddict(Android, iOS) :

Click on the “gear & i” icon > Option(INPUT OBD) : select

Bluetooth > Choose Device “NEXAS”

Harry's LapTimer(Android, iOS) :

Make sure your phone / tablet’s Bluetooth is turned on.

-16-

There’s prior setup, pairing, or connecting necessary for

android.

The app automatically detects your device and connects to it.

Piston(Android only) :

Main Menu (≡ three line icon) > Settings > Connection

Type(Select Bluetooth) > Default device( Select NEXAS)

InCarDoc(Android, iOS) :

Main Menu (≡ three line icon) > Settings > Connection Type >

Choose one of the 'NEXAS'.

FORScan(Android, iOS) :

iOS : The app automatically detects your device and connects

to it.

Android : Go to settings and set Connection Type to Bluetooth0

and select your adapter in the Bluetooth adapter list.

-17-

JScan(Android, iOS) :

Go to Configure (click on the gear icon in the upper right

corner).

Enter Bluetooth device name in the Adapter Name.

Motoscan ( Android):

Make sure your phone / tablet’s Bluetooth is turned on.

There’s prior setup, pairing, or connecting necessary for

android Bluetooth connection settings.

Go to application's Configure (click on the “≡ three line icon” in

the upper left corner).

Click on “Setting” > Select “Communication” > The

Communication Type is set to Bluetooth > Bluetooth device

selection Paired Device "NEXAS".

TuneECU (Android):

Start the Bluetooth function in your Android device

Plug the Bluetooth adapter into the diagnostic port on the bike.

-18-

Switch on the ignition.

In the Android device, start the Bluetooth function.

Connect the Bluetooth adapter and the Android device via the

pairing function.

Start TuneECU

When you start TuneECU with Bluetooth-connection for the

first time, select the Bluetooth-adapter

to be used. On a later start, all that remains to be done is to

confirm whether the application is

authorized to activate Bluetooth.

Select the used ECU-Typ in the Menu "ECU" under option

"Select" (eg Triumph Keihin).

Select "Connect" in the "ECU" menu.

HybridAssistant ( Android):

Make sure your phone / tablet’s Bluetooth is turned on.

Go to application's Configure (click on the “setting icon” in the

bottom left).

-19-

Click on “Settings” > Click “Connection mode” > Select

“Bluetooth”

Return to the main interface, APP will prompt to connect

NEXAS device, enter "1234" in PIN and click ‘OK’.

Other Apps may have similar settings.

If you are not sure or have trouble connecting, contact us at

service@nexastech.com

9. FAQ and Troubleshooting

Here we list some frequently asked questions and answers

relating to this NexLink Interface.

1) When I try to connect to "NEXAS" from the iOS Bluetooth

menu it tells me it is not supported.

On iOS devices, you will see this error when trying to connect to

Bluetooth LE devices from the system Bluetooth Setting. The

-20-

right way to do with iOS devices is DO NOT pair with "NEXAS"

from the iOS Bluetooth device list. Please just open the app,

make connection setting and connect from the app. If you have

already tried to pair (caused a Not-Supported-Error), please

restart your iOS device and follow the above instructions.

2) Do I need to pay extra to use this device? Can I use it on

multiple vehicles?

The device requires a third-party App to get it work, which may

require purchase (normally from free to $9.99, decided by the

app’s developers). Some Apps also offer in-app purchase for

advanced features. The device can be used on as many vehicles

as you like.

3) The Bluetooth pairing fails on Android/Windows.

When connecting to the device via Bluetooth, you may be

prompted to enter a pin. Use"1234". If it fails to connect after

entering the pin, or it asks for a 16-digit pin, please reboot your

phone and try again. Change the default pairing pin to 1234 when

try to connecting to some Android head units.

-21-

4) Can I leave the device plugged in all the time?

OBDII dongle is always powered for most cars. As it uses low

energy Bluetooth, you can leave this device plugged in from days

to 3 weeks depending on the vehicle’s battery condition. But we

highly recommend to remove the OBDII dongle from the vehicle

after use.

5) “NEXAS" is not showing up on my phones Bluetooth list.

If the blue LED does not flash when it's plugged in, check the

cigar fuse of your vehicle (a blown fuse is usually the problem).

You can also try with another vehicle to verify If the LED turns on

and then off but no Bluetooth signal, try with another phone/tablet.

(If you have tried to pair from iOS Bluetooth menu, please reboot

your iOS device.

6) The device will not connect to App.

Make sure the app is compatible (see Part 4 for recommended

apps) and the correct connection settings is made in the App.

7) Can not connect to vehicle/ECU or detect OBDII Protocol.

Verify if your vehicle is OBDII compliant and the ignition is at ON.

-22-

Also start the vehicle to try again. Try it on another vehicle if

possible. Some apps such as BimmerCode have special vehicle

apps compatibility so check the app page first.

8) Which sensor data can I get?

Readable parameters depend on what's installed on the OBDII

system by the manufacturer. Generally, newer vehicles will give

more readings and faster refresh speed. Some readings like

transmission temperature are manufacturer-specific and you will

need to add custom PID.

9) Can it reset my ABS, airbag, and other non-Check Engine

lights?

Most OBDII Apps only provide basic check engine light

diagnostics. You will need a specific App that can do diagnostic

on these modules of the specific vehicle. Contact us or the app

developer if you are not sure. Oil change or maintenance

required lights cannot be read or reset since there is no error

code for them.

-23-

10. Support and Warranty

For technical support or warranty service, contact us at:

service@nexastech.com, Emails usually will be responded within

24 hours.

Products are covered by one year hassle-free replacement

warranty against defect.

Extended 6-Month Warranty: Registering yourself by sending

us an email to service@nexastech.com with the S/N of your

Bluetooth Interface will get you a extended 6-month warranty.

You can find the S/N on your Bluetooth name list of your mobile

phone or Pad.

Disclaimer

Product names, logos, brands, vehicle makes / models and other

trademarks featured or referred to within this user manual are the

property of their respective trademark holders. Use of them does

not imply any affiliation with or endorsement by them.

-24-

Tech Support: service@nexastech.com

Follow Us:

Twitter: nexas_tech

Facebook:

www.facebook.com/nexastech

www.nexastech.com