Actron CP9125 Review: Compact & Reliable Obd2 Pocket Scanner

Last Updated on April 11, 2025

With over 40 years of experience in the automotive diagnostic industry, Actron has built a reputation for delivering dependable scan tools tailored to various user needs. Whether you’re looking for an entry-level OBD2 scanner, a mid-range diagnostic tool, or a professional automotive diagnostic scanner, Actron has you covered. In this Actron CP125 review, we’ll focus on the Actron CP9125 C Pocket Scan Tool.

This device is a compact, easy-to-use, and budget-friendly code reader, similar in functionality to the Actron CP9660. Actron offers different scanners to meet the needs of beginners, DIYers, and professionals alike, making the Actron CP9125 a practical choice for those seeking a reliable entry-level diagnostic tool. Read this Actron CP9125c review to learn more about its features, compatibility, and value.

Who Is the Actron CP9125C For?

The Actron CP9125C pocket scan tool is designed for:

• DIY car enthusiasts
• Regular car owners
• Beginner mechanics

While it only performs basic diagnostic functions, it’s highly reliable. The scanner can read and clear check engine light codes, making it perfect for those who want a simple yet effective tool to diagnose engine-related issues.

The CP9125C is compatible with OBD2 vehicles manufactured from 1996 and newer, which includes most US, European, and Asian models.

Check the Price of Actron CP9125 C

Actron CP9125C: Frequently Asked Questions

Can the CP9125C scan tool be updated?
Yes, despite being a small and affordable tool, the Actron CP9125C supports software updates via the internet, allowing continued compatibility with newer vehicle models.

Is the CP9125 scanner compatible with a Subaru Impreza?
Yes, it supports most OBD2-compliant Subaru models, including the Impreza.

Can it diagnose a 1998 BMW M3?
Yes, as long as the vehicle is OBD2 compliant, which the 1998 BMW M3 is, the scanner should work properly.

Is there a difference between the CP9125 and CP9125C?
No, both models are identical in features and design.

Can I use it for motorcycles?
No, this scanner is designed for cars and light trucks only, not motorcycles.

Is it compatible with the 2001 Toyota RAV4?
Some users have reported compatibility issues with the 2001 Toyota RAV4. It’s best to verify OBD2 compliance or consult Actron support before purchasing.

Does the CP9125 show which cylinder is misfiring?
It can detect engine misfires but does not specify which cylinder is affected.

Related article: Which scanner should you buy between Innova and Actron?

Pocket Scanner Actron CP9125 Review

This scan tool is designed to be small, portable, and easy to operate. Simply connect it to your car’s 16-pin OBD2 port to begin diagnostics. It doesn’t require additional devices like smartphones or apps, making it a true plug-and-play solution.

Notable Features:

• Compact, ergonomic design
• Fast and accurate diagnostics
• Reads and clears check engine light codes
• Updatable software
• Multilingual menu (English, Spanish, French)
• One-year limited warranty
• Affordable for beginners

Technical Specifications:

Features	Actron CP9125 Scanner
Works:	All 1996 and newer import and domestic OBD II and CAN vehicles
Display MIL status:	Yes
Indicates the number of DTCs pulled:	Yes
Displays emission status:	Yes
Special Features:	Includes OBDII 16-pin connector, Includes software with 5,000+ trouble codes, Works for most cars and light trucks since 1996
Update Option:	Yes
Weight:	2.3 pounds
Dimensions:	10.3 x 6.3 x 2.3 inches
Warranty:	One year (12 months)
Price:	Check Today’s Price

The Actron CP9125C is a reliable entry-level OBD2 scanner that provides quick code reading and clearing for users who want a simple, no-frills diagnostic tool. It’s especially useful for DIYers and car owners who want to avoid unnecessary trips to the mechanic for basic engine issues. While it lacks advanced features, its ease of use, compatibility, and affordability make it a solid investment.

Easy to use

Being an entry-level scan tool, you don’t need any knowledge to start using the Actron cp9125 C pocket scan tool. If you have any challenges, just check out the user manual. The information will be displayed on the screen, and the buttons will be well-labeled.

Extensive vehicle coverage

This is an amazing diagnostic coder, as it is compatible with a wide range of vehicles. It works on most 1996 and newer cars and light trucks that are OBD2 compliant. Some of the popular car brands that you can use this device are Subaru, GM vehicle, Ford, Toyota, Honda, BMW, Nissan, etc. But you cannot use this Obd tool for BMW.

Sturdy construction

Regardless of being a small and compact scanner, the CP9125 C code reader is sturdily constructed to last longer. It features a hard plastic casing, and it is lightweight. It is also drop resistant.

Basic functions

If your aim is to read codes, erase codes, turn off the check engine light, and display emissions status, then this is the scanner for you. It performs basic functions but not special or advanced functions. So you can check the technical specifications of the Actron Elite Autoscanner CP9690, which offers more advanced features. But overall, It will save you money spent on the mechanic to read and erase error codes.

Backlit display

This user-friendly gadget will allow you to read and erase error codes in different light conditions. Thanks to the backlit display that illuminates the screen even in dark conditions.

Affordable

Despite having wonderful features, the Actron cp9125 pocket scan tool is favorably priced. It will help you to check codes and clear check engine lights. This is better than taking your car to the mechanic for such services.
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Warranty& Updates

The best part of all is that you can update this gadget over the internet. So, you can be assured that it will function on the latest vehicle models by simply updating its software.

On top of all the great features that it offers, this code reader comes with a one-year warranty.

Setbacks of the Actron CP9125 Scanner

Displays limited information – if you’re a professional mechanic looking for a professional diagnostic scanner, then look elsewhere. This scan tool doesn’t come with advanced functions, and that’s why it is suitable for beginners and DIYers who only want to read codes and turn off the check engine light.

Related article: Autel VS Actron: Comparison between two popular OBD scanner brands

Short cord – another shortcoming of using this Actron scan tool is that it comes with a short cord. This limits your movement as you won’t be able to diagnose the car from outside. You can only use the scanner while seated in the driver’s seat.

Compatibility problems – before buying this code reader, you should get in touch with Actron and detect if the scanner is compatible with your car’s make and model or not. This will help you to prevent wasting money on a scan tool that isn’t compatible with your vehicle.

Comparison table for Actron CP9125 vs Actron CP9660 Scanner

Feature	Actron CP9125	Actron CP9660
Type	Basic PocketScan Code Reader	Advanced Diagnostic Code Reader
Display	Small, simple LED display	Larger, backlit LCD screen
Ease of Use	Extremely user-friendly, single-button control	User-friendly with more advanced features
Vehicle Compatibility	Works with OBD-II compliant vehicles (1996+)	Covers OBD-II, CAN, and enhanced OBD-II vehicles
Features	Reads and clears trouble codes; basic diagnostics	Reads/clears codes, live data, freeze frame, and I/M readiness
Size and Portability	Compact and portable	Slightly larger, still portable
Data Display	Displays error codes only	Displays error codes, definitions, and live data
Code Definitions	Requires manual lookup or reference	Built-in code definitions for easy reference
Price	Budget-friendly	Slightly more expensive
Software Updates	No software update capability	Supports updates via USB connection
Best For	Beginners or DIYers looking for basic diagnostics	Intermediate to advanced users needing more comprehensive diagnostics

Alternative Of Actron CP9125:

Actron CP9660 OBD2 Scanner

• Dimensions: 9.4 x 5.7 x 1.1 inches
• Weight: 12.8 ounces
• Works: All 1996 and newer vehicles
• Reads ABS and OBD II generic codes: Yes
• Live data vehicle sensor: Yes
• Reads and displays all available I/M monitors for emissions: Yes
• Freeze Frame Data: Yes
• Diagnostic Trouble Codes (DTCs): Yes
• Switch and Relay inputs in real-time: Yes
• Reads Codes: Yes
• Reads ABS Codes: Yes
• Erases Codes: Yes
• LCD Readout: Yes
• Warranty: One year (12 months)

Actron CP9670 OBD2 Scanner

• Dimensions: 10.20 x 6.50 x 1.50 inches
• Weight: 1.3 pounds
• Works: 1996 and newer vehicles
• Check Engine Light: Yes
• Live data information: Yes
• Language Support: English, Spanish, French
• Views Freeze Frame Data: Yes
• State OBD check(emissions): Yes
• Record and Playback of Live Data: Yes
• Read and display VIN: Yes
• I/M Monitors: Yes
• Update Option: Yes
• Powertrain and ABS Vehicle Coverage: Yes
• Battery System Monitor: No
• Read & Erase DTCs: Yes
• Get transmission codes: Yes
• Warranty: 12 months

Final thoughts

Generally, the Actron CP9125 C scan tool is a nice code reader for startup mechanics and DIYers. It performs most of the basic functions of a scanner, and it is easy to use. All you need is to connect it to the OBD2 port and start diagnosing your car. Also, the tool is cheaper than other models, including Actron CP9695 or Actron CP9670 Pro AutoScanner.

Furthermore, the CP9125 C pocket scan tool can be updated over the internet to have the latest software that can be used to diagnose the most recent car models. With a wide vehicle coverage of most 1996 and the newer vehicle makes and models, this is a code reader that you can rely on.