Last Updated on October 11, 2026
Many car owners don’t think about diagnostic tools until the Check Engine Light appears. Taking your car to a repair shop is sometimes necessary, but knowing which trouble code has been stored can make that visit much easier.
The Actron CP9670 AutoScanner was designed for this purpose. It combines OBD2 code reading with live engine data, freeze-frame information, a color display, and selected enhanced diagnostic functions. For DIY car owners working on compatible older vehicles, it offers more information than a basic code reader.
However, there’s an important change to consider. The Actron CP9670 has been discontinued, and software updates are no longer available. This doesn’t mean existing scanners have stopped working, but it limits their usefulness for newer vehicles.
In this Actron CP9670 review, we’ll examine its features, compatibility, strengths, weaknesses, and whether a used CP9670 is still worth buying. If you’re shopping for a currently supported tool, our Innova 3040 scanner guide covers another option for everyday diagnostics.
Actron CP9670 Review: Technical Specifications
The CP9670 was built primarily for engine and emissions diagnostics, with additional capabilities for selected vehicle applications. Here’s a closer look at its specifications.
| Technical Specifications | Actron CP9670 AutoScanner |
| Scanner Type | Handheld OBD2 diagnostic scanner |
| Vehicle Compatibility | Most supported 1996-and-newer OBD2-compliant vehicles |
| Display | Color LCD screen |
| Languages | English, Spanish, and French |
| Read and Erase Engine Codes | Yes |
| Live Engine Data | Yes |
| Data Recording and Playback | Yes |
| Freeze-Frame Data | Yes, when supported by the vehicle |
| I/M Readiness | Yes |
| ABS Diagnostics | Selected compatible vehicle applications |
| Transmission Diagnostics | Limited enhanced coverage; not universal |
| Charging System Monitor | Supported diagnostic function |
| Code Lookup | Yes |
| Power Source | Vehicle diagnostic connection during normal operation |
| Software Updates | Discontinued; no new updates available |
| Final Software Version | AB85 and/or 9DD0, according to Actron |
| Best For | DIY diagnostics on compatible older vehicles |
| Availability |  Check Third-Party Availability |
Compatibility note: Standard OBD2 functions and enhanced vehicle-system coverage are different. A car may support engine-code reading while its ABS or transmission functions remain unavailable.
What Can the Actron CP9670 Diagnose?
The CP9670 can retrieve standard emissions-related engine trouble codes and display supporting information that helps narrow down a problem.
For example, if your car stores a misfire code, the scanner may show engine speed, load, and other recorded conditions. These details can help you decide what to inspect before replacing parts.
However, the scanner doesn’t automatically identify the failed component. A trouble code tells you what the vehicle computer detected, not always what caused it.
If you need help understanding a stored fault, our car diagnostic trouble code reference explains common code definitions.
Actron CP9670 Features and Benefits
1. Color LCD Display
One of the CP9670’s advantages over simple code readers is its color display. The larger screen makes it easier to navigate diagnostic menus and review information.
It also provides a more comfortable experience when checking several trouble codes or comparing engine readings.
2. Live Engine Data
The CP9670 can display available engine sensor information while the vehicle operates.
Depending on your car, this may include:
- Engine RPM and vehicle speed.
- Engine coolant temperature.
- Fuel system status.
- Short-term and long-term fuel trims.
- Throttle position.
- Other supported OBD2 parameters.
Live data can be particularly useful when a problem occurs intermittently. However, not every parameter is available on every vehicle.
3. Record and Review Diagnostic Data
Instead of relying only on a stored code, users can record supported diagnostic information and review it afterward.
For example, changes in fuel trims or coolant temperature may help investigate a performance complaint. The readings still need to be interpreted using the vehicle’s specifications.
4. Freeze-Frame Information
Freeze-frame data provides a snapshot of selected operating conditions when an emissions-related fault was recorded.
It may show whether the engine was cold, warm, idling, or under load when the problem occurred.
This is useful because the same trouble code can have different causes under different driving conditions.
5. Trilingual Interface
The scanner offers English, Spanish, and French menu options. This makes it accessible to a broader range of users.
Some technical terms or descriptions may remain in English when a translated version isn’t available.
6. Selected Enhanced Diagnostics
The CP9670 includes diagnostic functions beyond basic generic OBD2 on selected vehicle applications.
However, ABS and manufacturer-specific coverage vary. Before buying a used unit, check the exact vehicle and system you need to diagnose.
Don’t assume that a scanner supporting ABS on one Chevrolet, Toyota, or Ford will support every ABS system from those manufacturers.
How to Use the Actron CP9670 Scanner
The CP9670 is relatively straightforward to operate once you’ve located your vehicle’s diagnostic port.
- Locate the OBD2 port: Usually found underneath the dashboard on the driver’s side.
- Connect the scanner: With the ignition off, insert the diagnostic connector securely.
- Turn the ignition on: Follow the scanner’s instructions to establish communication.
- Select the diagnostic function: Choose the appropriate menu to read trouble codes.
- Record the codes: Write down the complete codes and available freeze-frame information.
- Review live data: Check supported sensor information if further testing is needed.
- Verify repairs: Clear codes only after completing the appropriate diagnosis and repair.
Erasing fault codes may also reset emissions readiness monitors. Avoid clearing codes immediately before an emissions inspection.
Actron CP9670 Video Review
The following video provides a closer look at the scanner and its operation.
Keep in mind that older video demonstrations may refer to software updates or product availability that no longer apply.
Check Actron CP9670 Availability
Actron CP9670 Troubleshooting Guide
If your CP9670 isn’t working correctly, check the following before assuming the scanner has failed.
| Problem | Possible Cause | What to Check |
|---|---|---|
| Scanner won’t power on | No power at diagnostic connector | Check OBD2 connection, vehicle battery, and relevant fuse. |
| Scanner won’t connect | Ignition off, loose connection, or unsupported communication | Turn ignition on, reseat connector, and verify vehicle compatibility. |
| No codes displayed | No stored codes or wrong system selected | Check pending codes and select the correct diagnostic system. |
| Live data unavailable | Unsupported parameter or communication problem | Confirm vehicle support and reconnect the scanner. |
| Scanner freezes | Temporary software or communication issue | Disconnect safely, restart the tool, and retry. |
| Cannot erase codes | Incorrect procedure or active fault | Use the specified ignition state and repair the underlying problem. |
| Display difficult to read | Display settings or hardware fault | Inspect screen settings and check for physical damage. |
| Newer vehicle not supported | Legacy software or unavailable enhanced coverage | Check the final software version and supported vehicle list. |
If the scanner repeatedly fails to communicate with a known compatible vehicle, inspect the cable and connector for damage.
For further help with diagnostic communication problems, read our OBD2 scanner not linking troubleshooting guide.
Actron CP9670 Review: Real-World Advantages
Easy to Understand
For car owners learning to diagnose engine problems, the CP9670 provides a useful introduction to live data and trouble-code interpretation.
Its menus are less complicated than those found on many professional diagnostic tools.
Useful for Older Vehicles
The scanner can still perform its supported functions on compatible vehicles despite being discontinued.
If you already own one and it communicates correctly with your car, there’s no need to replace it simply because the product is no longer manufactured.
Portable Design
Its handheld design makes it easy to move around a garage or store with other automotive tools.
However, like any electronic diagnostic device, it should be protected from excessive moisture, impact, and heat.
Helpful Diagnostic Information
Live data, freeze-frame records, and code definitions provide more information than a warning light alone.
These features can also help you explain the problem more clearly when visiting a mechanic.
Check Third-Party Availability
Disadvantages of the Actron CP9670
The scanner has several limitations that matter more today than when it was originally introduced.
- Discontinued Updates: Actron no longer releases software updates for the CP9670.
- Limited Newer-Vehicle Coverage: Standard OBD2 functions may work, but enhanced diagnostics aren’t guaranteed on newer cars.
- Not a Full-System Scanner: It doesn’t replace advanced equipment for every ABS, airbag, transmission, or service function.
- Older Interface: The wired connection and menu layout may feel dated compared with newer tools.
- Used Product Risks: Remaining units may have damaged cables, worn buttons, or missing accessories.
These limitations don’t make the CP9670 useless. They simply mean buyers should compare it with current alternatives before spending money.
Actron CP9670 vs. CP9690: What’s the Difference?
The Actron CP9690 was designed with broader legacy vehicle coverage, especially for selected OBD1 systems.
| Feature | Actron CP9670 | Actron CP9690 |
|---|---|---|
| Standard OBD2 Diagnostics | Yes | Yes |
| Selected OBD1 Coverage | Not its main purpose | Yes, with required accessories |
| Color Display | Yes | Yes |
| Live Engine Data | Yes | Yes |
| Freeze-Frame Data | Yes | Yes |
| Enhanced Diagnostics | Vehicle-dependent | Vehicle-dependent |
| Best For | Basic/intermediate OBD2 checks | Owners of selected OBD1 and OBD2 vehicles |
| Software Support | Discontinued | Discontinued |
If you work with older pre-1996 vehicles, the CP9690 may be more suitable, provided the required cables and vehicle support are available.
For a more detailed comparison, see our Actron CP9690 review.
Is the Actron CP9670 Still Worth Buying?
The answer depends on whether you already own it or are looking for one to purchase.
If you already own the CP9670: It may still be useful for compatible vehicles. Its existing code-reading and live-data functions can continue operating without new software updates.
If you’re planning to buy a used CP9670: Verify the software version, vehicle compatibility, condition, and included cables before purchasing. Ask the seller to demonstrate that the scanner works.
If you’re buying your first diagnostic scanner: A currently supported model is usually a better long-term choice, especially if you expect to work on newer vehicles.
Actron’s official CP9670 software information page lists the final versions as AB85 and/or 9DD0 and confirms that updates are no longer available.
Actron CP9670 Alternatives
If you need a replacement, choose a scanner based on the diagnostic systems you actually use.
A basic modern OBD2 scanner may be sufficient for engine codes, live data, freeze-frame information, and emissions readiness.
If you need broader ABS, airbag, or transmission coverage, verify those functions for your specific vehicle before buying.
Actron CP9680 vs. CP9670
The CP9680 offered additional features such as CodeConnect and selected ABS/SRS coverage. However, it has also been discontinued, so it isn’t necessarily a better long-term replacement.
| Feature | Actron CP9670 | Actron CP9680 |
| Color Display | Yes | Yes |
| Engine Code Reading | Yes | Yes |
| Live Data | Yes | Yes |
| CodeConnect | Not a key feature | Yes |
| ABS/SRS Coverage | Selected applications | Broader selected applications |
| Maintenance Functions | Limited | Selected service functions |
| New Software Updates | No | No |
For a detailed look at that model, read our Actron CP9680 AutoScanner Plus review.
For a newer basic OBD2 scanner, you can also compare the FOXWELL NT301, which focuses on engine-code diagnostics and live data rather than full-system service functions.
Frequently Asked Questions About the Actron CP9670
1. Is the Actron CP9670 discontinued?
Yes. Actron confirms that the CP9670 has been discontinued. Its final listed software versions are AB85 and/or 9DD0, and new updates are no longer available.
2. What vehicles work with the Actron CP9670?
The scanner was designed for supported OBD2-compliant vehicles, including many U.S. cars from the 1996 model year onward. Compatibility with enhanced functions depends on the vehicle and software version.
3. Can the Actron CP9670 read ABS codes?
The CP9670 offered selected enhanced diagnostics, including ABS-related functions on compatible applications. It does not provide universal ABS coverage for every make, model, or year.
4. Can the CP9670 clear the Check Engine Light?
Yes. It can erase supported engine trouble codes after repairs. However, clearing codes doesn’t correct the underlying problem, and the warning light may return if the fault remains.
5. Does the Actron CP9670 display live data?
Yes. It can display supported engine parameters and provide data recording and review functions. Available readings depend on the vehicle’s OBD2 system.
6. Should I buy a used Actron CP9670?
A used unit may be worthwhile if it is inexpensive, fully functional, and confirmed compatible with your vehicle. Otherwise, a currently supported scanner is generally the safer long-term choice.
Final Verdict: Actron CP9670 Review
The Actron CP9670 was a capable handheld scanner for everyday engine diagnostics. Its color display, live data, freeze-frame information, and selected enhanced functions provided more value than a simple trouble-code reader.
For drivers maintaining compatible older vehicles, a functioning CP9670 can still be useful.
However, the scanner’s discontinued status limits its appeal as a new purchase. Without software updates, compatibility with newer vehicles and electronic systems cannot be assumed.
If you already own one, continue using it for the functions it supports. If you’re shopping for a scanner today, compare currently supported models and verify their vehicle coverage before making a decision.
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Kevin Nicholas is an automotive mechanic and editor of The Effective Guide. He writes about warning lights, car problems, and diagnostic tools, helping drivers understand what to check before replacing a part.