
OBD II systems perform the role of the link between the ECU and the user. They enable the car to perform an accurate self-diagnosis and report the issue. This reporting is in via error codes.
The Innova 3020 is an example of such a system. Innova 3020 is an OBD II system that is designed to read and clear the causes of Engine check warning light.

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It has a vast array of features that enable it to perform this task efficiently.
Contents
Innova 3020 Detailed Review
Compatibility
Innova 3020 is specifically designed to be compatible with all OBD II protocols. This makes it compatible with most vehicles produced during or after the year 1996.
The device not only connects with cars but also trucks, SUVs, and even hybrids.
Innova 3020 connects to your vehicle using a wire. This wire connects to the OBD II data link cable in your vehicle.
You can easily find this datalink connector under the car’s dashboard or under the handbrake.
The Innova 3020 can read and erase the trouble codes for a number of vehicles. These models include
- GM
- Ford
- Chrysler
- Toyota
- Honda models.
Innova 3020’s Display
The display is a LED-backlit black and white display. It uses bold black markings to show the readings. This makes reading the results easier for the user.
The display, although not very large, can show all the aspects of the vehicle at a time. This makes it sufficiently functional.

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Although the display is fully functional, it is a bit dull. The white light and black markings on the display resemble those of a calculator.
Most OBD II scanning tools have advanced to tablets and colored displays making this display look obsolete.
Software
Innova 3020 runs on software developed by Innova. The software was developed to give the user a wide variety of diagnostic tools at their disposal.
This, therefore, provides more accurate readings and better vehicle fixes.

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The software on the Innova 3020, unlike other OBD II devices, is not upgradeable. It also cannot connect to your computer via a USB cable.
This means that the user cannot analyze the readings from their computer. The developers of the Innova 3020 seem to believe that the software is sufficient.
Read more: INNOVA 3100J OBD2 Scanner Review
Innova 3020’s Features
Instant services
The device has a fast performance speed. Boot up takes as little as 5 seconds. The device also refreshes the results after every 30 seconds.
This means it takes a mere 30 seconds to perform a complete diagnostics scan. Data on your vehicle is rendered instantaneously on the screen.
This data includes detection of error codes as well as the definition of these codes.
The device also has several pin connection points that offer the user quick services. All these services function to save the time and money of the user.
All-in-one display
The Innova 3020 has a patented screen that shows all the information you require on the go. This screen by Innova can show at least 25 pieces of vital information at the same time.
It gives you all the information you need to know about your car at a glance, therefore, saving your time.
Constant vehicle status monitoring
There are two main aspects of your vehicle that the Innova 3020 constantly monitors. The first is error code status. Secondly, the Innova 3020 monitors your vehicle’s emissions status.
These aspects are monitored by three LEDs colored green, yellow and red.
- A green light means that there are no you have no error codes.
- The yellow light means there are pending error codes.
- The red light indicates permanent error code that requires the attention of a mechanic.
Such error code could be indicative of an issue with the emissions system in your vehicle.
Functionality
- To perform vehicle diagnostic scans
- Scanning and clearing of error codes
Vehicle diagnostic scans
Primarily, Innova 3020 is an OBD II scanner. As such, it performs comprehensive vehicle diagnostics scans and reports on the errors.
The Innova 3020 scans for the causes of the Engine Check warning light. It then gives a report to the user as to the reason why the MIL is on.
This report is given in the form of a code which the person using must look-up in the DTC library.
After getting the diagnostics report, the user knows the exact issue with the car and can determine how soon repairs are due.
Scanning and clearing of error codes
Another primary function of the Innova 3020 is to scan for error codes. The error codes that can be easily cleared by the device are temporary error codes. These are indicated by a yellow light.
For the permanent error codes, clearing them can only be done after the issue has been addressed. Clearing error codes ensure that the car runs smoother.
Bonus: Innova 3160g OBD2 Code Reader Review

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Pros
- It can provide accurate readings
- It saves time and money otherwise spent taking systems apart
- The screen shows up to 25 readings at a go making it convenient
- It refreshes data on the screen after 30 seconds thus allowing you to monitor repairs
- It monitors your emissions status helping you avoid fines
- Customer support is the best aspect of Innova. They are fast and responsive
Cons
- The device cannot be connected to a computer via USB
- It can only diagnose the engine warning light
Innova 3150f vs. 3020 vs. 3100 Comparison Chart
![]() Innova 3020 | ![]() Innova 3100 | ![]() Innova 3150f | |
Customer Rating | ![]() | ![]() | ![]() |
Price | ![]() | ![]() | ![]() |
Check Engine Light | Yes | Yes | Yes |
ABS | Yes | Yes | Yes |
SRS | N/A | Yes | Yes |
Oil Light Reset | N/A | Yes | Yes |
Battery Reset | N/A | N/A | Yes |
Bluetooth Compatible | N/A | N/A | Yes |
Bottom Line | Innova 3020 is suitable for beginners. | Innova 3100 is ideal for average car owners and DIY users. | It is highly recommeded for both DIY consumers and professional users |
Who Should Buy It?
The Innova 3020 is mainly a tool for beginners. It has limited functions and although they are able to meet the expectations of the device, they are not enough for a professional user.
Check Price at AmazonBonus: Best Innova Scanner: The 9 Choices on the Market Review