The right GM Diagnostic Tool can help you diagnose your General Motors’ car and give insights about the performance of your vehicle. Since GM is a popular brand, you will find many tools claiming to be the best GM scan tools.
Do not let advertisers fool you, check out our honest review of the best GM scan tools to find the right one for your vehicle. Choose a GM OBD1 scanner if you have an older car (built before 1996) and pick a GM OBD2 scanner if you have a modern GM model.
Contents
- 1 Best GM OBD1 Scanner Reviews
- 2 Best GM OBD2 Scanner Reviews
- 2.1 1iCarsoft i900 OBD2 Diagnostic Scanner for General Motors and Car Truck
- 2.2 2Foseal OBD2 GM Bluetooth Cheap Engine Code Reader
- 2.3 3OBDLink MX Bluetooth GM OBD2 Scan Tool
- 2.4 4Launch X431 Creader VII+ GM OBD2 Scan Tool for Testing Engine Transmission ABS Airbag Systems
- 2.5 5Foxwell NT510 Multi-system GM OBD2 Scanner
- 3 Best GM Scan Tools: Editor’s Top 3 Picks Comparison Chart
- 4 The Bottomline
Best GM OBD1 Scanner Reviews
1INNOVA 3123 GM OBD1 Code Reader
4.2 / 5Innova 3123 is one of the best GM Diagnostic Tool. Apart from reading basic engine codes, it can also read ABS codes.
Why Buying INNOVA 3123?
ABS Codes: ABS is important for a smooth ride. Problems in this system can cause skidding.
INNOVA 3123 can find faults in the system. They’re usually related to wheel sensors, wires, and hydraulic pump. This scanner will display a code that will tell you where and what the problem is.
Manual: The kit comes with a guidebook with dozens of codes and explanations. You can refer to the book to understand what a code means.
Engine Trouble Codes: This GM Diagnostic Tool can read the engine light and also reset it after the problem is fixed.
Vehicle Coverage
This GM OBD1 scanner supports all older GM models manufactured between 1982 and 1995.
It also supports general motor vehicles built between 1982 and 1995 including Ford and Bronco II.
Innova 3123 is one of the best GM obd1 code readers.
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Pros
- Very small in size, hence highly portable.
- 1-year limited warranty.
- Reads ECM codes, engine temperature, and EGR related faults.
- Simple interface requires no specific knowledge to use.
- The guidebook makes it easy to find explanations.
Cons
- The cord is short.
Who Should Take The Tool?
This GM Diagnostic Tool is for GM owners who want to read and clear CEL and ABS lights.
Check Price at Amazon2Actron CP9690 GM OBD1 Scanner with OBD2 Vehicles Coverage
4.1 / 5Actron CP9690 is one of the Best GM Scan Tools. It can read codes from three main systems, including engine, ABS, and SRS.
Apart from that, it offers many features and covers a wide range of vehicles.
Why Buying Actron CP9690?
Oil Reset: The GM Diagnostic Tool can read oil reset light and indicate you when it’s time for an oil change.
It will also notify you when the oil pressure is low. Moreover, the scanner can help you reset the light once you fix the problem.
Battery Reset: With this GM OBD1 scanner, you can reset the battery configuration when you install a new battery.
ABS: You can find faults in the ABS of your older GM model with this scan tool. It can help you solve various problems related to brake pressure, sensors, and wires.
SRS: Airbag help keep you safe in case of an accident. Therefore, you must not neglect the SRS light. With Actron 9690, you can read all kinds of SRS issues and reset SRS when the problem is sorted.
DTC: This scanner provides about 26 million fixes in its built-in library. You can find an extensive explanation of all the codes displayed by this scanner. Thus, no more wasting time Googling codes.
CEL: The scanner can read engine codes and help you reset them.
Vehicle Coverage
This GM Diagnostic Tool comes with both obd1 and obd2 cables, making it suitable for not only older but newer GM models as well.
The obd1 cable will work with GM, Chrysler, Toyota, and Ford vehicles only (manufactured between 1984-1995). The OBD2 cable is suitable for cars built between 1996 and 2013.
Actron CP9690 can read codes from three main systems, including engine, ABS, and SRS.
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Pros
- 12-month limited warranty.
- The CodeConnect database offers reliable fixes.
- Stores and playbacks data.
- Colored and large screen making it easy to read content.
- Displays graphical data that’s easy to read.
Cons
- Codes in the database are only in English.
- USB adapter needs to be bought separately.
Who Should Take The Tool?
This GM diagnostic tool is ideal not only for DIYers and enthusiasts but semi-professionals, too.
Check Price at AmazonBest GM OBD2 Scanner Reviews
1iCarsoft i900 OBD2 Diagnostic Scanner for General Motors and Car Truck
4.3 / 5This powerful GM OBD2 scanner can perform a full system diagnosis. It supports a plethora of features and can test three main car system (transmission, engine, and ABS).
Why Buying iCarsoft i900?
ABS: This scanner will help you find ABS related faults in your GM model easily.
IMMO: With this scanner, you can restrict the ignition system of your car from turning on unless the right key is used.
DTC: This scanner incorporates a DTC library that provides with code explanations. It makes it easier to comprehend what the problem is.
Live Data Stream: You don’t need to turn off the car to diagnose problems as the system shows live data that makes it easier to identify and solve problems.
Physical Features: The scanner has a large 2.8 color screen and a user-friendly interface that is easy to navigate. Beginners will find no problems using the scanner and reading codes.
iCarsoft i900 supports a plethora of features and can test three main car system.
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Pros
- 1-year limited warranty.
- Offers test modes such as Can bus, iso9141, kwp2000, j1850, etc.
- Very quick at diagnosing problems.
- Lightweight (only 9 ounces).
- Contains a user-friendly interface and silicone keys.
Cons
- Doesn’t support SRS
Who Should Take The Tool?
This tool is suitable for GM owners who want to diagnose simple problems in their cars.
Check Price at Amazon2Foseal OBD2 GM Bluetooth Cheap Engine Code Reader
4 / 5Forseal OBD2 is a popular scan tool that will let you perform a variety of features. It supports many vehicles and is known to be very quick.
Why Buying Foseal?
CEL: This diagnostic tool can read engine related codes and point out where the problem is. Searching for codes is a breeze thanks to the DTC explanation. You will be able to reset engine light once the problem is fixed.
Monitor Live Data: With this scanner, you can check live data on the go. It covers engine RPM, horsepower, intake manifold pressure, air flow rate, intake air temperature, o2 sensor voltages, calculated load value, coolant temperature, fuel system status etc.
Wireless Connection: You can connect it to your Android or iOS devices with the help of third-party apps such as OBD Doctor and OBD Fusion.
Vehicle Coverage
This scanner supports all 1996 and later GM models. It also supports many other vehicle brands that are obd2 supported.
Foseal supports many vehicles and is known to be very quick.
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Pros
- 1-year guarantee.
- Supports a number of apps.
- Compact and lightweight.
- Smooth uninterrupted connection.
- Very quick at diagnosing.
Cons
- No advanced features.
Who Should Take The Tool?
This can be a good option for users who want to solve basic problems without having to deal with wired units.
Check Price at Amazon3OBDLink MX Bluetooth GM OBD2 Scan Tool
4.1 / 5OBDLink MX is an excellent GM scanner for beginners who want to maintain their vehicle’s performance.
Why Buying OBDLink MX?
ABS/SRS/Transmission For GM: It supports ABS/SRS/AT codes in GM and a few other brands.
Over Voltage Protection: This scanner is meant to run for years thanks to the overheating protection feature it comes with. It doesn’t heat up or catch fire even if the battery voltage fluctuates.
4x Speed: T OBDLINK MX Bluetooth is 4x faster than conventional scanners which is why it is one of the best GM scan tools. It also supports Bluetooth and can be controlled with third-party apps.
Basic Features: You can check engine light codes, see graphs and logs, export information to a computer with this automotive diagnostic tool.
Hack Proof: Thanks to 128-bit data encryption, this scan tool is safe to use.
Vehicle Coverage
This GM OBD2 scanner supports all GM vehicles built after 1996. It works on Windows devices and Android devices running version 2.2 or higher.
You can also use this GM scanner on light trucks.
OBDLink MX is an excellent GM scanner for beginners who want to maintain their vehicle’s performance.
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Pros
- 3-year warranty.
- Hackproof.
- Only takes 3 minutes to install.
- Superior graphical images and accurate data.
- Saves power.
Cons
- Doesn’t support Apple devices.
- Requires 3rd party apps to operate.
Who Should Take The Tool?
This can be a good option for people who want to buy a reliable option. It offers a bunch of features and comes with a lengthy warranty.
Check Price at Amazon4Launch X431 Creader VII+ GM OBD2 Scan Tool for Testing Engine Transmission ABS Airbag Systems
3.9 / 5This GM OBD2 scanner not only supports GM vehicles but OBD and EOBD vehicles as well.
It can scan four main vehicle systems in your GM including AT, ABS, SRS, and engine.
Why Buying Launch X431 Creader VII+?
ABS: The tool can read ABS related codes in your GM and help reset ABS light after fixing the problem.
SRS: You can read and reset SRS (airbag codes) after identifying and fixing the problem.
A/T Codes: With this scanner, you can read and clear all transmission related codes.
Basic Features: Launch Creader VII+ lets you check engine codes, perform tests (EVAP, O2, onboard), DTC look up, store freeze frame data, check I/M readiness, and look at data stream.
Vehicle Coverage
It covers GM models built in 1996 and later and supports all ten OBDII test modes.
It’s also one of the few diagnostic tools to support Asian and European models.
Launch X431 VII+ can scan four main vehicle systems in your GM including AT, ABS, SRS, and engine.
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Pros
- Lightweight (just over a pound in weight).
- Works quick and provides accurate data.
- Free lifetime updates.
- 1-year warranty.
Cons
- Might give serial number error sometimes (update to the latest version to solve the issue).
- Needs to be used with both hands.
Who Should Take The Tool?
This tool is ideal for DIYers, enthusiasts, and semi-professionals who want to diagnose ABS, SRS, and transmission system in their GM car.
Check Price at Amazon5Foxwell NT510 Multi-system GM OBD2 Scanner
4 / 5If you are in search of the Best GM OBD2 Scanner that can perform a variety of advanced diagnosis in your GM car then bring home Foxwell NT510.
It not only supports GM models but many other brands as well.
Why Buying Foxwell NT510?
SRS: It can read SRS related codes and make sure that your airbag deployment system works properly.
Transmission Codes: The Best GM OBD2 Scanner can read A/T codes and provide an explanation thanks to its reliable DTC library.
Oil Reset: This scanner will notify you when your car needs an oil reset.
Advanced Tests: FOXWELL NT510 can perform actuation test, system test, and programming tasks on control modules.
ABS: You can read ABS related codes from this scanner and reset ABS light after fixing the problem. It also supports brake bleeding.
DPF: You will be able to read and clear DPF codes and find faults in the exhaust system of your GM car.
EPB: It will read problems in the electronic parking brake system along with code explanation.
TPMS: You can monitor tire pressure in your GM car using this scanner.
SAS: It lets you calibrate the steering angle sensor and find faults in the SAS.
Vehicle Coverage
This GM OBD2 scanner supports all GM vehicles built between 1996 – 2016.
Foxwell NT510 not only supports GM models but many other brands as well.
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Pros
- 1-year guarantee.
- Lifetime free updates.
- Supports all ten obdII modes.
- Supports brake deactivation, adaptation, and service resets
Cons
- The OS is a bit slow.
Who Should Take The Tool?
This Best GM OBD2 Scanner is a good fit for professionals and mechanics who want to perform complex diagnosis in GM and other brands.
Check Price at AmazonBest GM Scan Tools: Editor’s Top 3 Picks Comparison Chart
 Actron CP9690 GM OBD1 Scanner |  iCarsoft i900 OBD2 Diagnostic Scanner |  Foseal OBD2 GM Bluetooth Cheap Engine Code Reader | |
| Customer Rating | 4.1 / 5 | 4.3 / 5 | 4 / 5 |
| Price Range |  | |  |
| Weight | 4 pounds | 0.56 pounds | 1.45 pounds |
| obd1/obd2 | OBD1 and OBD2 | OBD2 | OBD2 |
| abs/srs | ✖ | ABS only | Both |
| DTC lookup | ✔ | ✔ | ✔ |
| Full OBDII modes | ✔ | ✖ | ✔ |
| CEL | ✔ | ✔ | ✔ |
| transmission | ✔ | ✔ | ✔ |
| Full System Diagnosis | ✖ | ✖ | ✔ |
The Bottomline
These are 7 of the best GM scan tools that you can get for your vehicle. Choose one keeping your requirements in mind.