What is an OBD1 scan tool?

An OBD1 scan tool is a device used to diagnose vehicle problems by reading codes from a car's onboard diagnostics system.

How do I use an OBD1 scan tool?

You use an OBD1 scan tool by connecting it to your vehicle's diagnostic port, typically found under the dashboard, and following the tool's instructions.

What types of vehicles are compatible with OBD1 scan tools?

OBD1 scan tools are generally compatible with vehicles made before 1996, but it's best to check your vehicle's manual or manufacturer information.

Can an OBD1 scan tool detect all car problems?

While OBD1 scan tools can diagnose many issues, they may not detect all problems, especially those unrelated to the vehicle's emission system.

Do all OBD1 scan tools work the same way?

Not exactly, different OBD1 scan tools may have varying features and compatibility depending on the brand and model.

Updated: April, 2026

Best obd1 scan tools

Save up to 17% Off

1

Joplay

9.8

Exceptional

OPLAY OBD1 Code Reader Compatible with Ford, 2 in 1 Digital OBD 1 Scanner with Built-in Reinforced Pins and 9 Feet Cable OBD 1 Scan Tool Compatible with Ford, Lincoln, Mercury from 1981-1995 (Gray)

Main highlights

Wide Vehicle Compatibility: Offers extensive coverage Compatible with Ford, Lincoln, and Mercury cars and trucks from 1981 to 1995.Effortlessly interfaces with EEC-IV and MCU-based systems

Professional Diagnostic Modes: Perform comprehensive checks with three key tests: Key On Engine Off (KOEO), Continuous Memory (CM), and Key On Engine Running (KOER) self-tests

Code Definitions Display: Features a 2.4" LCD screen that shows code numbers and their definitions instantly. Eliminates the need to count blinking lights or consult manuals. (Does not support ABS code)

More info
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2

Joplay

9.7

Exceptional

JOPLAY OBD1 Code Reader Compatible with Ford, 2 in 1 Digital OBD 1 Scanner with Built-in Reinforced Pins and 9 Feet Cable OBD 1 Scan Tool Compatible with Ford, Lincoln, Mercury from 1981-1995

Main highlights

Wide Vehicle Compatibility: Offers extensive coverage Compatible with Ford, Lincoln, and Mercury cars and trucks from 1981 to 1995.Effortlessly interfaces with EEC-IV and MCU-based systems

Professional Diagnostic Modes: Perform comprehensive checks with three key tests: Key On Engine Off (KOEO), Continuous Memory (CM), and Key On Engine Running (KOER) self-tests

Code Definitions Display: Features a 2.4" LCD screen that shows code numbers and their definitions instantly. Eliminates the need to count blinking lights or consult manuals. (Does not support ABS code)

More info
3

Joplay

9.5

Excellent

JOPLAY OBD1 Scanner and Code Reader Compatible with GM 1982-1995 Vehicles, ECM ABS Diagnostic Scan Tool with Instructions in English, Spanish, and French

Main highlights

Safer Than A Paper Clip: Technically equivalent to a straightened clip in function, but skip the risky DIY jumper wire - a professional connector prevents short circuits. Lights will flash on the dashboard to help you make counts. And the book inside will help you to locate the problem

Fits Most Models: Compatible with General Motors & Saturn Vehicles from 1982-1995. But does NOT read codes on diesel, Cadillac, Geo, Nova, Toyota 4Runner and Sprint vehicles. Check the product page for the specific Make and Model

Easy to Use: Just connect to the vehicle's computer self-test connector, easily and safely access the on-board computer to read ECM and ABS codes. No harm or damage to the vehicle's computer system

More info
4

Joplay

9.4

Excellent

OPLAY OBD1 Code Reader Compatible with Ford, 2 in 1 Digital OBD 1 Scanner with Built-in Reinforced Pins and 9 Feet Cable OBD 1 Scan Tool Compatible with Ford, Lincoln, Mercury from 1981-1995 (Gray)

Main highlights

Wide Vehicle Compatibility: Offers extensive coverage Compatible with Ford, Lincoln, and Mercury cars and trucks from 1981 to 1995.Effortlessly interfaces with EEC-IV and MCU-based systems

Professional Diagnostic Modes: Perform comprehensive checks with three key tests: Key On Engine Off (KOEO), Continuous Memory (CM), and Key On Engine Running (KOER) self-tests

Code Definitions Display: Features a 2.4" LCD screen that shows code numbers and their definitions instantly. Eliminates the need to count blinking lights or consult manuals. (Does not support ABS code)

More info
5

Hirificing

9.3

Excellent

Hirificing OBD1 Scanner, OBD1 to OBD2 GM Adapter, OBD 1 Scanner Cable Code Reader OBD1 12 Pins to OBD2 OBD II 16 Pins Socket Scan Diagnostic Extension Tool Cable Connector Replacement for GM Popular

Main highlights

【Upgrade Material】The obd1 to obd2 adapter is made of high-quality metal and premium PVC material, which is durable and reliable in quality. Made of precision injection molding, it is not easy to break.

【Professional Accessories】Our OBD1 scanner connector is a male-to-female extension cable specifically designed to connect the scanner and vehicle, a utility tool specifically designed for GM vehicles, but this item is just a cable, not a scanner or diagnostic tool.

【High Quality】This OBD2 to OBD1 GM adapter combines flexibility and durability, the cable is easy to operate and use, multiple cables can be daisy chained together for longer distances, it manufactured to standard specifications, can be used for a long time use.

More info
6

Joplay

9.2

Excellent

JOPLAY OBD1 Code Reader Compatible with Ford, 2 in 1 Digital OBD 1 Scanner with Built-in Reinforced Pins and 9 Feet Cable OBD 1 Scan Tool Compatible with Ford, Lincoln, Mercury from 1981-1995

Main highlights

Wide Vehicle Compatibility: Offers extensive coverage Compatible with Ford, Lincoln, and Mercury cars and trucks from 1981 to 1995.Effortlessly interfaces with EEC-IV and MCU-based systems

Professional Diagnostic Modes: Perform comprehensive checks with three key tests: Key On Engine Off (KOEO), Continuous Memory (CM), and Key On Engine Running (KOER) self-tests

Code Definitions Display: Features a 2.4" LCD screen that shows code numbers and their definitions instantly. Eliminates the need to count blinking lights or consult manuals. (Does not support ABS code)

More info
7

Autel

9.1

Excellent

Autel 7 Pin OBD1 to OBD2 Adapter Cable for Ford, 7Pin OBD1 to 16 Pin OBD2 Diagnostic Cable, Fit for Ford Vehicles with 7Pin Port, Work with Scan Tool and Code Reader

Main highlights

【Please Confirm Carefully Before Ordering】This Autel 7pin OBD cable is used to convert your For.d 1985-1991 OBD1 diagnostic interface to OBD2 interface for connecting to universal scanners. But please note that it only provides a physical interface conversion and does not guarantee normal communication for all scanners, as diagnostic success depends on whether your scanner supports earlier protocols, such as For.d EE.C-IV. If data transmission fails, please reach us via: auteldirect @ outlook. com, we will provide you with the most suitable solution.

【OBD II Connector Adapter 7-pin】This OBD adapter is designed for old Ford cars (1985-1991) with 7-pin OBD1 port, allowing you to convert your car's 7PIN irregular OBD port to a normal 16PIN OBD2 port, connecting the vehicle and scanner/ car diagnostic tool normally.

【Compatible for Ford Cars (1985-1991)】This OBD1 to OBD2 vehicle adapter is mainly suitable for Ford vehicles with 7-pin OBD ports,mainly for Ford EFI from 1985 - 1991. The 7-pin diagnostic port is usually located below the brake master cylinder of old Fo-rd EFI vehicles from 1985 to 1991. Note: This product is only a cable for data transmission, not a scanner or diagnostic tool.

More info
8

Autel

9.0

Excellent

Autel 7 Pin OBD1 to OBD2 Adapter Cable for Ford, 7Pin OBD1 to 16 Pin OBD2 Diagnostic Cable, Fit for Ford Vehicles with 7Pin Port, Work with Scan Tool and Code Reader

Main highlights

【Please Confirm Carefully Before Ordering】This Autel 7pin OBD cable is used to convert your For.d 1985-1991 OBD1 diagnostic interface to OBD2 interface for connecting to universal scanners. But please note that it only provides a physical interface conversion and does not guarantee normal communication for all scanners, as diagnostic success depends on whether your scanner supports earlier protocols, such as For.d EE.C-IV. If data transmission fails, please reach us via: auteldirect @ outlook. com, we will provide you with the most suitable solution.

【OBD II Connector Adapter 7-pin】This OBD adapter is designed for old Ford cars (1985-1991) with 7-pin OBD1 port, allowing you to convert your car's 7PIN irregular OBD port to a normal 16PIN OBD2 port, connecting the vehicle and scanner/ car diagnostic tool normally.

【Compatible for Ford Cars (1985-1991)】This OBD1 to OBD2 vehicle adapter is mainly suitable for Ford vehicles with 7-pin OBD ports,mainly for Ford EFI from 1985 - 1991. The 7-pin diagnostic port is usually located below the brake master cylinder of old Fo-rd EFI vehicles from 1985 to 1991. Note: This product is only a cable for data transmission, not a scanner or diagnostic tool.

More info
9

Joplay

8.8

Very Good

JOPLAY OBD1 Scanner and Code Reader Compatible with GM 1982-1995 Vehicles, ECM ABS Diagnostic Scan Tool with Instructions in English, Spanish, and French (Blue)

Main highlights

Safer Than A Paper Clip: Technically equivalent to a straightened clip in function, but skip the risky DIY jumper wire - a professional connector prevents short circuits. Lights will flash on the dashboard to help you make counts. And the book inside will help you to locate the problem

Fits Most Models: Compatible with General Motors & Saturn Vehicles from 1982-1995. But does NOT read codes on diesel, Cadillac, Geo, Nova, Toyota 4Runner and Sprint vehicles. Check the product page for the specific Make and Model

Easy to Use: Just connect to the vehicle's computer self-test connector, easily and safely access the on-board computer to read ECM and ABS codes. No harm or damage to the vehicle's computer system

More info
10

ANCEL

8.7

Very Good

ANCEL AD310 Classic Enhanced Universal OBD II Scanner Car Engine Fault Code Reader CAN Diagnostic Scan Tool, Read and Clear Error Codes for 1996 or Newer OBD2 Protocol Vehicle (Black)

17% Off

Why we love it

Simple to use with no batteries required.

Supports all OBDII protocols for broad compatibility.

Compact and lightweight, easy to transport.

Main highlights

Comprehensive Diagnostic Capabilities
The ANCEL AD310 reads and clears engine codes, displays live data, and supports all OBDII protocols for extensive vehicle compatibility.

Ideal for DIY Mechanics
Perfect for car owners who want to diagnose engine issues themselves and save on mechanic fees.

User-Friendly and Portable
Praised for its ease of use, portability, and quick diagnostic results according to customer reviews.

More info

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Frequently Asked Questions

What is an OBD1 scan tool?
An OBD1 scan tool is a device used to diagnose vehicle problems by reading codes from a car's onboard diagnostics system.

How do I use an OBD1 scan tool?
You use an OBD1 scan tool by connecting it to your vehicle's diagnostic port, typically found under the dashboard, and following the tool's instructions.

What types of vehicles are compatible with OBD1 scan tools?
OBD1 scan tools are generally compatible with vehicles made before 1996, but it's best to check your vehicle's manual or manufacturer information.

Can an OBD1 scan tool detect all car problems?
While OBD1 scan tools can diagnose many issues, they may not detect all problems, especially those unrelated to the vehicle's emission system.

Do all OBD1 scan tools work the same way?
Not exactly, different OBD1 scan tools may have varying features and compatibility depending on the brand and model.

You can help us improve our product reviews by providing us with your feedback. Please share your thoughts in the section below.

Best obd1 scan tools

9.8

OPLAY OBD1 Code Reader Compatible with Ford, 2 in 1 Digital OBD 1 Scanner with Built-in Reinforced Pins and 9 Feet Cable OBD 1 Scan Tool Compatible with Ford, Lincoln, Mercury from 1981-1995 (Gray)

Main highlights

How do we rank?

How do we rank?

Analyzing top stores

How do we rank?

9.7

JOPLAY OBD1 Code Reader Compatible with Ford, 2 in 1 Digital OBD 1 Scanner with Built-in Reinforced Pins and 9 Feet Cable OBD 1 Scan Tool Compatible with Ford, Lincoln, Mercury from 1981-1995

Main highlights

9.5

JOPLAY OBD1 Scanner and Code Reader Compatible with GM 1982-1995 Vehicles, ECM ABS Diagnostic Scan Tool with Instructions in English, Spanish, and French

Main highlights

9.4

OPLAY OBD1 Code Reader Compatible with Ford, 2 in 1 Digital OBD 1 Scanner with Built-in Reinforced Pins and 9 Feet Cable OBD 1 Scan Tool Compatible with Ford, Lincoln, Mercury from 1981-1995 (Gray)

Main highlights

9.3

Hirificing OBD1 Scanner, OBD1 to OBD2 GM Adapter, OBD 1 Scanner Cable Code Reader OBD1 12 Pins to OBD2 OBD II 16 Pins Socket Scan Diagnostic Extension Tool Cable Connector Replacement for GM Popular

Main highlights

9.2

JOPLAY OBD1 Code Reader Compatible with Ford, 2 in 1 Digital OBD 1 Scanner with Built-in Reinforced Pins and 9 Feet Cable OBD 1 Scan Tool Compatible with Ford, Lincoln, Mercury from 1981-1995

Main highlights

9.1

Autel 7 Pin OBD1 to OBD2 Adapter Cable for Ford, 7Pin OBD1 to 16 Pin OBD2 Diagnostic Cable, Fit for Ford Vehicles with 7Pin Port, Work with Scan Tool and Code Reader

Main highlights

9.0

Autel 7 Pin OBD1 to OBD2 Adapter Cable for Ford, 7Pin OBD1 to 16 Pin OBD2 Diagnostic Cable, Fit for Ford Vehicles with 7Pin Port, Work with Scan Tool and Code Reader

Main highlights

8.8

JOPLAY OBD1 Scanner and Code Reader Compatible with GM 1982-1995 Vehicles, ECM ABS Diagnostic Scan Tool with Instructions in English, Spanish, and French (Blue)

Main highlights

8.7

ANCEL AD310 Classic Enhanced Universal OBD II Scanner Car Engine Fault Code Reader CAN Diagnostic Scan Tool, Read and Clear Error Codes for 1996 or Newer OBD2 Protocol Vehicle (Black)

Why we love it

Main highlights

Frequently Asked Questions

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