Is your car producing an unpleasant pungent smell, or is the intake air temperature extremely high? Whatever the problem, the Konnwei KW850 automotive diagnostic scanner will help you detect it. This will not only save you time but as well as money spent visiting a mechanic. The Konnwei KW850 scan tool is a quality OBD scan tool that does more than just read and erase error codes. Read the Konnwei KW850 review to know more about this scan tool.
The KW850 supports all the OBD2 protocols, retrieves vehicle information, and tests the battery. But it is not a scanner for professional users. The scanner features a clear and colored LCD color screen, well-labeled hotkeys, and a compact code reader. This makes it easy to use.
Auto Code Reader Konnwei KW850 Review 2024
- Clears codes, turn off the MIL, and resets monitors
- Multilingual menu options and code definitions
- Retrieves vehicle information
- Displays complete live data stream in digits and graph format
- I/M readiness hotkeys
- Reads freeze frame data
- Reads engine fault codes and shows definitions
- Extensive vehicle coverage, most 1996 and newer vehicles
- Lifetime free online update and print service
- 2.8-inch LCD color screen, which is wider than Autel AutoLink AL319’s cheapest diagnostic OBDII reader
- 36-month worry-free warranty
- Memory backup for off-car review and analysis
- Lock-up library with over 8,000 built-in generic code definitions
Technical Specifications
|
Features |
Konnwei KW850 Auto Code Reader |
| Works: | ALL 1996 and newer vehicles |
| Display: | 2.8″ LCD color display (320 X 240 dpi) |
| Check Engine Light(MIL): | Yes, determines the cause |
| Views freeze frame data: | Yes |
| O2 sensor test: | Yes |
| Live PCM data stream: | Yes |
| Evaporative control system test: | Yes |
| Display fault code definition automatically: | Yes |
| Emissions readiness checks: | Yes |
| Emissions-related System: | Yes |
| Check mpg/miles per gallon: | No |
| One-click readiness: | Yes |
| Battery check: | Yes |
| Update Option: | Free Update Online Lifetime |
| Warranty: | 3-year Warranty |
| Price: |  Check Today’s Price |
Related article: OBDLink LX VS MX: Which Bluetooth scanner should you buy in 2024?
Page Contents
Benefits of the Konnwei KW850 OBD2 Scanner
The KW850 scanner has extensive vehicle coverage as it functions on most 1996 US-based, 2003 EU-based, Asian OBD2, and CAN domestic and foreign vehicles. On top of that, the device comes with lifetime free online updates and a worry-free 36-month warranty. It is also compactly designed and lightweight for easy use and storage. With its sturdy casing, the device will defy daily wear and tear at work to offer many years of use.
Read our Konnwei KW850 review to the end to find out more about the KW850 features, benefits, and setbacks. This is a must-have tool for small car shop owners and individual car owners.
Easy to use
One of the joys of using the Konnwei KW850 scanner is that it is very easy to use. It comes with an intuitive user interface, and it is a plug-and-play device. The hotkeys are clearly labeled and very easy to press. The 2.8-inch LCD color screen displays all the outcomes making reading the device to be easy. Furthermore, the LCD color screen displays a graphical real-time sensor analysis. The extra-long 4.5-inch diagnostic cable allows the user to access the code reader even when outside the vehicle. But it is not MAC or IOS supported. So if you have an IOS system, you have to choose the Carista OBD2 Bluetooth scanner.
With the multilingual menu, this scan tool can be used by people from different parts of the world as one can select a language of choice. It has English as the default language, as Spanish, French, etc.
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KONNWEI KW850 compatible cars
If you handle more than one car brand, this is a suitable diagnostic code reader. It works on most vehicles sold in the USA from the year 1996 and newer. Also, it functions on most 1996 US-based, 2003 EU-based, Asian OBD2, and CAN domestic and foreign vehicles. This includes light trucks, SUVs, cars, etc. Some car brands it is compatible with include Chevrolet, Ford, Lamborghini, Audi, Kia, Mazda, BMW, GM, Ferrari, Jeep, Subaru, Fiat, Rolls Royce, Peugeot, Jaguar, etc.
Wide range of functions
Regardless of being sold at a very affordable price, the Konwei KW850 scanner performs a wide range of functions. To start with, it can read and erase error codes, test battery, freeze frame data, evaporative control system test, one-click readiness, live PCM data stream, display fault code definition automatically, O2 sensor test, etc. The best part of all is that it comes with a look-up library with more than 8,000 built-in generic code definitions that enable you to accurately detect the cause of the check engine light and fix it without having to visit a mechanic. So comparing the price, the tool is more advanced than the Foxwell NT201 auto code reader or the Actron CP9125 pocket scanner.
Compact and sturdy code reader
The Konnwei KW850 code reader is sturdily made of strong plastic material and cover. These prevent it from being damaged when it accidentally falls on the ground. With measurements of 9.4 x 3.9 x 2 inches, this is a really compact gadget. It also weighs around 1 pound, making it lightweight. Therefore, storing or using this gadget is easy and convenient. For proper storage, the manufacturer provides a storage case that keeps it safe. But if you want a Bluetooth-enabled device, you can use the Innova 3120 wireless OBD2 scanner.
Lifetime free software update
If you intend to use this scan tool for a long while, then there is nothing to worry about. You can always update the device in order for it to work on the latest vehicle makes and models. It comes with a lifetime of free software updates, which helps you fix the latest bugs or newly added vehicle features. The only challenge is that it cannot be updated on a MAC PC.
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Warranty and support
The manufacturer offers a worry-free 3-year warranty to buyers of the product. This assures you of your investment, as you can return the device or have it repaired if it is damaged within this period. In addition, Konnwei has an excellent customer support team that answers all your queries and provides you with solutions to different issues.
Setbacks of the Konnwei KW850 scan tool
It is not compatible with all vehicles, but you can use this scanning device for AUDI cars. Before you purchase this scan tool, you should discover if it is compatible with your vehicle or not. If you have a hybrid or electric vehicle, this scanner will not work on your car. Also, many users have complained that it has compatibility issues with Japanese vehicles. So, check for compatibility before buying it.
The device is not compatible with iOS devices. This is another challenge, as you will not be able to update the device using MAC PC. This means that you will have to acquire windows in order to update the KW850 scanner.
Troubleshooting for the Konnwei kw850 Scan tool
| Problems | Possible Cause | Solution |
| The scanner not powering on | Faulty power connection or dead battery | Check the power connection or replace the battery |
| No communication with the vehicle’s ECU | Unsupported vehicle model or protocol mismatch | Verify vehicle compatibility or check the OBD-II protocol |
| Error codes not clearing | Vehicle issue not resolved or incorrect procedure followed | Ensure the vehicle issue is fixed or follow the correct clearing procedure |
| Inaccurate or inconsistent readings | Firmware issues or outdated software | Update the firmware or reinstall the software |
| Screen display issues | Screen damage or firmware glitch | Check for screen damage; if none, update the firmware |
| Frequent disconnections during scanning | Weak connection or loose OBD-II port | Secure the connection or check the OBD-II port for damages |
Comparison Table: Konnwei kw850 vs kw860 scan tool
| Features | Konnwei kw850 | Konnwei kw860 |
| Display: | 2.8” Wide TFT color screen | 2.8-inch screen |
| Operating Temperature: | 0 to 60 ?? (32 to 140 ?H) | 0 – 60?? (32 – 140 ?H) |
| Storage Temperature: | -20 to 70 ?? (-4 to 158 ?H) | -20 – 70?? (-4 – 158 ?H) |
| Power: | 8 to 18 V provided via vehicle | 0.77W |
| Dimensions: | 7.68 x 3.94 x 1.38 inches | 7.87 x 3.93 x 1.57 inches |
| Weight: | 0.8kg | 0.733 Kg |
| Supported Protocols: | J1859-41.6, J1850-10.4, ISO9141, KWP2000 (ISO 14230), and CAN (Control Area Network ISO 11898) | ISO 9141, KWP2000, SAE J1850, CAN,J1850 VPW,J1850 PWM |
Conclusion
Finding a quality diagnostic scanner at an affordable price is not easy. But the Konnwei KW850 scan tool offers outstanding features at a great price. The plug-and-play device is very fast and reliable. It can retrieve both manufacturer-specific and generic codes. Other functions include reading oxygen sensors, detecting why your vehicle is having issues with its air intake, displaying a live data stream, and much more.
Related article: Check the latest review of ANCEL AD410 affordable scan tool
This is an accurate and sturdy scan tool that is ideal for startup mechanics, professional technicians, and small car repair shop owners. The device has a wonderful warranty of 3 years and lifetime free updates. With such features, this is a scanner that you can rely on to diagnose different vehicles and perform a wide range of functions. I hope this Konnwei KW850 review was helpful to you.
FAQs
Question: Does Konnwei offer a warranty on its products?
Answer: Yes, it does. Konnwei is a reliable brand that has continued to broaden its products. For instance, the manufacturer offers a 36-month worry-free warranty to buyers of the Konnwei KW850 scanner. This removes any doubt and increases trust in the product. In case it comes with a defect or issue, you can always contact the manufacturer to have it repaired or replaced.
Question: Does the Konnwei KW850 work on the 2012 VPG mv-1 car?
Answer: Yes, it does. This code reader fully supports the 2012 VPG mv-1 passenger cars. Besides, it also comes with amazing features that both DIYers and professional mechanics will love. It is capable of reading and erasing Obd2 codes, inspecting a bad sensor, reading the oxygen sensor, and checking all emission-related trouble codes. It does this to all vehicles manufactured from 1996 and newer. This includes domestic, European, and Asian vehicles.
hi,
I have konnwei KW 830 model and want to update from version 1.2 of 2017 as I was advised that 2018 version works fine. this one continuously shows communication failure with different models of toyota have checked with RAV4, Allion, Spacio, camry etc but didnt work.
Please advise where to get an upgrade as uplink doesn’t change anything.
Here is the manual of Konnwei KW850(Same as kw830) https://images-na.ssl-images-amazon.com/images/I/A12VpHGA2+L.pdf. Go to page 26 and follow the software updating step. If still face problem to upgrade, then contact their support
Support@konnwei.com.hi there Henry ,will the Konwei 850 work on a VW polo Vivo 2012
Yes
Hi Henry,
Will the Konnwei 850 work on Land rover freelander 1 L Series 314 2.0 DI engine?
Kind Regards,
Hi Konnwei KW850 is it works on polo classic 1998 model?
Yes
Please I purchased a new konnwei kw850, I have been trying to scan my car Peugeot 406 but it is always saying that there is error in communication (error communicating with the vehicle ECU ) What should I do to rectify this problem.
I guess it doesn’t support your car. Also remember, It does not support the OBDI car. If you purchase KW850 scanner from Amazon, then contact with the seller.
I have problem with permanent code reading on my 2003 Peugeot 206. Seems like Konnwei doesn’t support our Peugeots.
Konnwei KW850 that I recently bought doesn’t support permanent code reading on my 2003 Peugeot 206. Everything else but that works just fine. I did a check before I got my scan tool and I have ABS and MAF sensor problem, yet on KW850, it won’t show those, and those are permanent codes.
Is this compatible with Nissan Xtrail t30
Yes
I just plugged in my new konnwei 850 to my yaris 2012 model which had a Airbag light and is permanent light but when I run the scan codes it say no fault codes found yet the airbag light is on.Any idea as to why it’s not kicking it up????
You need a scanner tool which does interior modules (airbag sensor, seatbelt sensor, etc.) the Konnwei 850 and most other less expensive scanners can only check the engine status, nothing else.
Will this work on a 2001 Japanese import Honda stream does anyone know?
No. It will not work. Japanese import vehicle will work 2006 or newer model.
Will this work on a 2006 Hyundai Tuscon?
Yes, It will work.
Will this work on 2004 VW Golf 1.6 SR 8v Automatic
It will work if the Volkswagen Golf has a plug to plug in the meter.
Will it work for a VW Caddy 2.0L Tdi 2013, and a Ford Ranger 3.0L TDCi 2008? Both diesel engines. Also a Renault Clio 2, 2005 1.4L Petrol engine.
And a Hyundai 1.6L Petrol, 2011.
1) As I said earlier comment that Volkswagen TDI will only work if the VW has a plug to plug in the meter.
2) Ford Ranger will work.
3) It is compatible with Renault.
4) Yes, it will work great with Hyundai.
I have a Audi A1. It is out of service plan. I dit a complete service. I cleared the oil service on the onboard but cant clear the service in days. I bought the KW850. Pluged it i to car but cant clear the service in days instructions. Do have advice how to do it.
Will this device work with the lexus ecu.?
No.
CAn it works for a BMW E-39 2001, 525 i and for OPEL Combo/Astra 1,7 DTI 2002.
Will not work on OPEL but other cars will support this scanner.
Hi Henry thanks for the reply….
So I bought the Konnwei KW850 – Try it on my 2004 VW Golf 1.6 SR 8v Automatic and it does not work.
Get the red connection error screen. Also try to use it on a VW 2007 Transporter 1.9 Diesel and also did not work.
Will this work on a 2013 jeep Grand Cherokee limited diesel
Yes, KW850 will support that jeep.
Would this work on Toyota Corolla 2009
Yes, Konnwei KW 850 will work on your Toyota Corolla 2009.
Will a Konnwei KW850 work on a 2011 Toyota Fortuner 3.0 D-4D 4×4 AT
Yes
I just got one and it doesn’t, shows the battery voltage but that’s it? Can’t read codes or nothing.
Thank you, should it not work what’s the second option to go for?
I want to know if this diagnostic machine will work on a 2004 Land Rover 110 TD5 Defender and a 2005 Nissan Almera?
It will work.
I purchased a Konnwei KW850, but it doesn’t work on my 2011 Toyota Fortuner
Will the work on 2011 Mercedes c300
Yes
hello, Konnwei KW850 is compatible with 2011 Range Rover sport 3.0 diesel?
i just bought the Konnwei KW850, its not reading both my 2003 MK4 1.6 Jetta and Golf. I get the red connection error screen. both the mentioned cars are OBD 2 compatible.
hi i got the konnwei kw850 and it only pick up the battery on my land-rover TD5 2001 model, does it support my land-rover.
i working the cars i like to know that konnwei kw850 works on which cars toyota quantum is also fitt in dignostic
Will the konnwei kw850 work on 2006 Ssangyong Rexton 270xdi?
No
Will this work with BMW x3 2006??
Yes
Will the kw850 work on BMW X3 2008?? If no, which product is compatible?
It will work.
Will this work with a Toyota Mark II 2004 Model?
Yes.
Will this work with a Mercedes W203 and is the KW850 capable to clear srs codes?
Yes
how can i update my konnwei scanner with september 2019 SRS and ABS functions
Go to there official website and download software to update.
Hi, does it reset inspection/service light on audi/vw
Yes
How do you reset the service reminder.
Thanks.
dos it work on chery envy 2017 egypt edition or envy e5
No
Hy.. Will it work on “Polo Vivo 2010 model”
Yes
Hi
I have a VW Polo Vivo 1.4i and have bought the Konnwei KW850 Scan Tool, but the Device makes red [X] on all blocks and gives the following message:
Error in communication with vehicle ECU. Please check:
1. If tool’s OBDII connector is connected to the vehicle’s DLC.
2. If the ignition is ON.
3. Verify that the vehicle is OBDII compliant.
I did all checks and stil the communication error persist.
What should I do next?
Konnwei kw850 doesn’t work on Audi A4 2008 model. It gives Communication error.
(1) Why can’t it work on my Audi A4, 2008?
(2) What is the konnwei kw850’s latest software version?
Will it work on folkswagen Polo Vivo 14 trend line 2016
Hi! Just plugged in my new kw850 in my Ford Kuga -10 which I have trouble with.
The ABS light is on and tr,cr as well, but the reader doesent find any issues at all!?
What is the problem?
Will it work with Vitz model 2013 Japan and Toyota GLI 2009 assembled in Pakistan.
Hi will this work on my 2006 Nissan Navara 3.0 TD
Yes
Does It works on Chevrolet 2015
Yes
Hi
Does a Renault Master Dci 100, 2010 model can I use this error code KONNWEI KW850 on it?
Best regards
Harald Adolfsen
Yes
Will this Konnwei KW850 work on Isuzu Giga dump truck model 2009 (engine model 6WF1)?
No
Will this work on 2014 Dodge Challenger 5.7?
Yes
Hi Henry
I have a konnwei 850 and it has communication error when i use it on 2003 BMW X5 will a software update fix this ?
Kind regards
Harry
Yes, Update the software.
Will it work with my 2015 Aston Martin Vantage?
I currently have a Konnwei KW850 for my other cars. Will it work with my 2015 Aston Martin Vantage?
Yes
Hi, great review. I have an Audi Q5 and want to change the brakes and need to release the caliper electronically. Will the KW850 do it? Thanks
Will this work on a duet vehicle?
Hi, will this work on a Toyota prado 2007 in Australia
Hi will konwei 850 work on my 1998 model e36 BMW 318is.
Yes
does it work on nissan march 2003 and nissan N16
Hi i just bought the Konnwei 850 but it gives me communication error on my 2011 polo 1.6 and 2015 Hilux 3.0d4d do you have any advice?
I have the same problem wish some one can tell what i can do
FOR MITSUBISHI COLT 1300CC 1999 CJ1A MONT WORK ??????
Yes
wrong answer !!! I tried
with a loan from a friend of mine but it is not connected (it does not find a communication protocol and the KONNWEI 850 is updated.) with the factory diagnostic mitsubishi or with MUT II work.???? your answer ????? I am waiting for an answer and from konnwei for 5 days now I have sent them a message 3 times
when connected to my Mitsubishi lancer1997 model it says,error connection ecu
How a about a Porsche Cayenne?
Yes
Will this work on a Mitsubishi Outlander 2008 diesel 4×4?
Yes
Hi, I am looking to purchase a Fault Scanner to be able to read Vehicle Faults on 2 motor vehicles in particular:-
1. 2006 Nissan Navara ST-R D22 ZD30 4×4 and:
2. 2002/2003 Range Rover L322 HSE 4.4 litres SUV that has the factory fitted OEM Air Suspension System.
On the 2002/2003 Range Rover L322, there is a Air System System Fault Code showing of:- ‘AIR SYSTEM INACTIVE’.
On reading through the Description of this KW850 Scanner, I am not seeing any reference to Air Suspension Faulty Code capability AND I have not seen or been able to read any reference to Air System Fault Codes of any other brands of Diagnostic Code Scanners that are advertised on the Internet.
They all allude to being able to read ALL of the vehicle faults, however, I need to know specifically if these type Code Scanners (including this KW850) will identify and show ‘Air System Fault Codes’
I know, from (my research) that Higher End, more expensive Code Scanners have the Function in them for Air System Fault Codes
Can you let me know ASAP if this KW850 scanner is compatible to the 2002/2003 Range Rover and has the ability to identify and read any fault codes other than only Engine Fault Code and in particular, the ‘Air System Fault Code?
Your response will be greatly appreciated at your earliest convenience,
Kind regards
Phil
Perth Western Australia
Hi Henry
Will it work on a jeep Grand Cherokee 2.7 diesel? I need to get a scanner.
Yes
I want to buy it but want to confirm if This work on my Acura TL 2005
is this going to work with Toyota avanza
Yes
Will you tell us types vehicles that are compatible with kw850
Doesnt work on Nissan wingroad (Y11) YOM 2004, doesn’t work on Toyota landcruiser, doesn’t work on Toyota folder. Its useless for DIY.
I purchased a new konnwei kw850, I have been trying to scan my car VW Polo 2011 1.6 CLS but it is always saying that there is error in communication (error communicating with the vehicle ECU ) What should I do to rectify this problem.
Hi, my van dont start. Will the kw850 still diagnose my van
Hi can konnwei obd 2 work in automatic polo 2006 model bky
My Konnwei 850 is not working on my Audi A4 2002 Model,is it compatible with this car?
Got the new kw8450 and it wont work on the 2011 polo vivo. do i need to load any software to get it to work on this vehicle.
I wonder what the label “OBD 2 & 1” on the KW850 means ?
G’Day Henry, lm in Australia and have the K850 will it work on my Lexus LS430 2001 model
Cheers Paul
Good day , I have just bought my first Konnwei 850 and plug it in to three different vehicles and all I get is a non connecting screen, can anybody assist with this problem , or the scanner just faulty ?
IO Pajero , Nissan Mistral , Nissan Legrand and a Toyota Passo
Hi there,
Do you know if the Konnwei KW850 is compatible with the Lexus IS200?
Thanks.
will it work on 2006 Nissan frontier and 2016 Toyota rav4
Yes
Does it work on japenese Toyota Vitz 2007 ?
Will this work on a 2005 Mitsubishi Outlander
Yes
Will my Konnwei Kw850 work on a Alfa Romeo Giulietta?
I do keep on getting no communication to the ECU.
Please help.
Kond regards
como fazer reset
Will it work on a Polo vivo
Hyundai getz 2005 1500 diesel, looking for a affordable scanner . The engine cuts out. Help please
Will this work on a 2000 suzuki vatara made in japan
Will this Konnwei Kw850 work on my Bmw 320i E90 2007
Yes
HI, What is the latest version update for Konnwei 850
My KW 850 SCANNER DOES NOT WORK ON MY POLO Vovo(2010) plz help .
Does it work on 2012 x3 2.0d and
2009 c200 kompressor w204
Hi,
Will the Konnwei KW850 scanner work on my BMW E46 318I (2004) FACELIFT?
Yes
My konnwei ke850 is not responding why
bjr le kw850 fontionnera t-il sur peugeot 508 hdi 1.6l 120cv de 2017
Does Konnwei KW 805 will work on my 2002 Honda Civic vti-s
Yes
Hi Henry will this work on a ML 350 bluetec 2014
Yes