Advertising Disclosure Code Readers Scan Tools Comparison - February 2026
3 Best Code Readers Scan Tools In the UK
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant's customer service levels, popularity trends, and more. The rankings reflect our opinion and should be a good starting point for shopping. As an Amazon Associate we may earn from qualifying purchases. We may receive a commission from purchases made through links on our site, which will help us continue to provide you with value.
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| 1 Best Choice  9.8Exceptional | 2  9.7Exceptional | 3  9.5Excellent |
| View DealOn Amazon | View DealOn Amazon | View DealOn Amazon |
ModelMUCAR CS90 Car Diagnostic Tool, ECM + 28 Lifetime Free Reset, Check Engine System, Oil/BRAKE/SAS/DPF/IMMO/ETS/Injector Coding Maintenance, OBD2 Scanner, OBD2 Code Reader Scan Tool | Model Car OBD2 Scanner Universal Wired Auto Engine Fault Code Reader CAN Diagnostic Scan Tool V309 for Check Engine Light, I/M Readiness Smog Check, HD LCD Display Screen | Model OBD2 Scanner Car Engine Fault Code Reader Wired ODB2 OBD Diagnostic Scan Tool for Check Engine Light, View Freeze Frame, Live Data, EVAP System Test V302 for 9 OBDII Protocol Vehicles Since 1996 |
Brandmucar | Brand RICOKEY | Brand RICOKEY |
Reviews | Reviews | Reviews  |
Tech Specs | ||
product dimensions 21 x 12 x 2 cm 720 g | product dimensions 19.9 x 13.3 x 3.4 cm 210 g | product dimensions 19.9 x 13.3 x 3.4 cm 210 g |
item weight 720 g | item weight 210 g | item weight 210 g |
manufacturer reference OBD2 Scanner | manufacturer reference V309 | manufacturer reference V309 |
manufacturer part number OBD2 Scanner | manufacturer part number V309 | manufacturer part number V309 |
Available On | Available On | Available On |
Our Top 3 Picks
Here are the top 3 recommended products with more information to help you find the right product for you
9.8
1mucarMUCAR CS90 Car Diagnostic Tool, ECM + 28 Lifetime Free Reset, Check Engine System, Oil/BRAKE/SAS/DPF/IMMO/ETS/Injector Coding Maintenance, OBD2 Scanner, OBD2 Code Reader Scan Tool
Why we love it
Lifetime free updates and maintenance resets.
Comprehensive diagnostic coverage for most car systems.
24/7 professional support via app and email.
Main highlights- Wifi Upgrade: After you receive our products, for better product experience as well as car diagnositic, please connect to wifi/phone hotspot and accept or take the initiative to update APP operating system and car brand diagnostic software.
- Smarter & User Friendly: With a multilingual menu and fast operating speed, you can quickly get clear access to vehicle information. It allows you to add multi parameters in the meantime to show the live data, which helps you quickly find potential problems of the vehicle. Data record, playback, and printable Inspection report (share via email) make diagnostic information easily at your hands.
- Online Service Support: With 24/7 professional support MUCAR is there for you anytime, anywhere. Get in touch with our highly trained technicians whenever you need them by the in-app chat. Also you can contact our MUCAR brand official after-sales service mailbox, we will also have a professional customer team for your service!
- Note: If you clear the fault code directly without repairing the car and find that the fault code is still there, it is your car hardware fault still exists. We recommend that after reading the fault code, repair the car first and then clear the fault code.
- Full OBD2 Functions: CS90 obd2 scanner supports 10 OBD2 function modes to Read Codes, Clear Codes, Live Data, View Freeze Frame, I/M Readiness, O2 Sensor Test, On-Board Monitor Test, EVAP Test, Vehicle Information, Read Permanent DTC etc. With freeze frame data you can check the vehicle fuel trim, engine coolant temperature, and more. Perform oxygen sensor tests and carbon canister tests to ensure your vehicle is ready for all emission services.
- About Compatibility: MUCAR CS90 has compatibility limitations for vehicle models, in order to avoid problems of mismatch or function failure after purchase. Please check the compatibility before purchasing, please send the make, series and year of the vehicle.
- ABS Scan Tool: Newly Added Functions in 2025! It can help read and clear the error code in the ABS now and turn off the warning light. It retrieves ABS codes to make braking more smooth, consistent and safe. It also performs live data streams in the ABS that allow the user to monitor and diagnose critical ABS systems to ensure that repairs to this critical system are effective and complete. Tips: You can clear the cache and log in again, you'll get this new feature.
- 28 Maintenance Reset, Lifetime Free: MUCAR CS90 car diagnostic tool comes with lifetime free 28+ reset service and upgrades functions: Oil, SAS Calibration, IMMO Keys (disable lost keys, add new keys), ABS Bleeding, Injector Coding, Battery Registration, DPF Regeneration, Throttle, Headlight, EGR Adaption, Tooth Learning, Sunroof Initialization. And it will restore partial parameter status after repair and maintenance. CS90 ranks the best in ideal choice for Shop/User.
- (ECM) Professional Engine System OBD2 Scanner: Use this OBD2 code reader for most important car systems, including Basic Engine Systems (ECM). You will have the ability to read the codes and make sure all security measures are in place. Not only will you receive the code definition, but you will also be able to view possible causes and reported corrections for specific vehicle codes.
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9.7
2RICOKEY
Car OBD2 Scanner Universal Wired Auto Engine Fault Code Reader CAN Diagnostic Scan Tool V309 for Check Engine Light, I/M Readiness Smog Check, HD LCD Display Screen
Why we love it
Easy to use for beginners.
No battery required.
Supports multiple languages.
Main highlights- 【To Be Your Own Mechanic】Easy to Operate. This Car diagnostic scanner can easily determines the cause of the Malfunction Indicator Light( MIL) ,Retrieves generic (P0, P2, P3 and U0), manufacturer specific (P1, P3, and U1) codes, and pending codes and displays DTC definitions on unit screen. Save money and time.
- 【Large LCD Display & No Battery Required】The V309 Enhanced OBD II Scanner is well built with a large LCD display (128 x 64 pixel) that has white backlight and contrast adjustment, indicates test results directly. No need any Batteries or Charger, gets the power directly from the OBDII Data Link Connector(DLC) in your vehicle, making it convenient for all drivers,DIYers and Home Mechanics.
- 【Enhanced Version & Powerful Compatibility】We Owned Design Patent. Universal OBD2 code scanner is ‘Plug and play’ , fast scan and clear trouble codes, very easy to use even for beginners. Works on all 1996 and newer vehicles (OBD II & CAN)-domestic and import,find out what the problem is and perhaps fix it yourself. Supports 5 Languages (English, French, German,Spanish, Dutch).
- 【Accurate & Fast Car Diagnosis】Quickly read and erase DTC (engine fault codes), with high definition on-screen over 3000 DTC ,allow you accurately determine causes of the check engine light ,turns off Malfunction Indicator Light (MIL),clears codes and resets monitors as well as views freeze frame data,displays monitor and I/M readiness status(emissions),reads live PCM datastream and retrieves vehicle information(VIN, CIN and CVN). Please NOTE: It will NOT read non-OBDII related lights, such as AirBag, ABS , SRS ,Oil Service Light OR TPMS, etc.
- 【24 Months Warranty & Top Customer Service】This diagnostic scanner comes with a 24-month manufacturer's warranty. Our dedicated customer service team is committed to your satisfaction and will assist with any product inquiries.
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9.5
3RICOKEY
OBD2 Scanner Car Engine Fault Code Reader Wired ODB2 OBD Diagnostic Scan Tool for Check Engine Light, View Freeze Frame, Live Data, EVAP System Test V302 for 9 OBDII Protocol Vehicles Since 1996
Why we love it
1. Powerful: Quickly diagnose troubleshoot.
2. Compatible: Works on most vehicles.
3. Convenient: Easy to read LCD display.
Main highlights- Support All 9 OBDII Protocols - Widely compatible with most 1996 US-Based, 2003 EU-Based and Asian cars, and newer OBD II & Can domestic or import vehicles. Our car obd readers can support all OBDII protocols such as KWP2000, J1850 VPW, ISO9141, J1850 PWM and CAN. Supports 8 languages: English, Spanish, German, French, Dutch, Ltalian,Chinese,Russian
- Retrieve Vehicle Information - The car code reader enables retrieval of Vehicle Identification No. (VIN), Calibration ID(s), Calibration Verification Nos. (CVNs). This function is most useful to check whether the ECU matches your car.
- I/M Readiness Function & Smog Check Helper - Car diagnostic scanner can check the operations of the Emission System on OBD2 compliant vehicles. This obd scanner includes vehicle-specific number of monitors like misfire monitor, fuel system monitor, Comprehensive component monitor, Oxygen sensor heater monitor, EVAP system and etc. Our obd2 diagnostic tool can help get your vehicle ready to pass the annual smog check.
- Fast and Easy to Use - With a clear LCD display screen, no need for batteries or a charger, this car diagnostic tool gets power directly from the OBDII 16-pin Data Link Connector in your vehicle, turn ignition on and simply find out what has caused the fault and clear it.
- Easily determine the cause of the engine light coming on, quickly read & erase diagnostic trouble codes, view freeze frame, I/M readiness, vehicle information, data flow, on-board monitor test, calculate load value, engine coolant temperature, get engine speed, Battery Voltage and Life Test, etc.
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Value for money
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Value for money
topchoice.co.uk compares product attributes to price, examines tech specs, ratings and reviews, and more.When compared to other criteria, does the pricing seem reasonable? In order to provide genuine value for money, our team must answer that question with advanced calculations.
