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AUTOOL 40CM OBD2 Extension Cable Connector 20pin to 16pin OBD2 Adapter
US$16.00
Key Features
- 20-Pin to OBD2
- 40 cm Reach
- Extension Adapter
- 20-Pin to OBD2: Converts a 20-pin vehicle-side connection to a 16-pin OBD2 interface for matching diagnostic tools.
- 40 cm Reach: Adds extra cable length so scan tools can be positioned more comfortably during testing.
- Extension Adapter: Built as an OBD2 extension cable for buyers who need a separate connector rather than a full scan tool.
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AUTOOL OBD2 Adapter Cable
Product Overview
The AUTOOL 40CM BMW 20-pin to 16-pin OBD2 extension cable is an adapter connector for BMW vehicles equipped with a 20-pin diagnostic interface. It connects the vehicle-side BMW 20-pin diagnostic port to a standard 16-pin OBD2 diagnostic connector, helping technicians use compatible diagnostic tools for vehicle diagnosis. The cable uses nylon material, all-copper wire, a 7.00mm cable body, and a 400mm / 15.74 inch working length.
BMW 20-Pin To 16-Pin 400mm Cable All-Copper Wire Nylon Material
400mmCable Length
7.00mmCable Diameter
190gNet Weight
3 YearsWarranty
Click to enlargeCompatibility And Fitment
Compatibility And Fitment
This adapter is intended for BMW vehicles that use a 20-pin diagnostic interface and need a 16-pin OBD2 diagnostic connector connection. Always confirm the vehicle diagnostic port shape and pin layout before ordering.
Vehicle SideBMW 20-pin car diagnostic interface
Tool SideStandard 16-pin OBD2 diagnostic connector
Suggested UseConnecting a compatible 16-pin OBD2 diagnostic tool to a BMW 20-pin diagnostic port
Before OrderingCheck your vehicle diagnostic connector first; this cable is not needed for vehicles that already use only a standard 16-pin OBD2 port.
Important LimitThe adapter changes the connector access only. Diagnostic functions still depend on the connected scan tool and the vehicle system.
Click to enlargeKey Features
Key Features
The cable focuses on stable connection, durable material, practical length, and connector conversion for BMW 20-pin diagnostic interface use.
20-Pin To 16-Pin Adapter
Converts a BMW 20-pin diagnostic interface connection to a 16-pin OBD2 diagnostic connector for compatible diagnostic tools.
All-Copper Wire Core
The cable is manufactured with all-copper wire to help achieve stable and reliable data transmission during diagnostic connection.
Durable Nylon Material
The nylon cable body is designed for daily workshop handling and is shown with waterproof, high-temperature resistance, and double-protection characteristics.
Thicker 7.00mm Cable Body
The AUTOOL cable is shown with a 7.00mm diameter, compared with a 5.00mm ordinary OBD cable in the product image.
190g Reinforced Feel
The cable net weight is listed as 190g, while the ordinary comparison cable shown in the image is 160g.
Flexible Protected Exterior
The product image highlights EF & non-toxic, flexible, anti-scalding, waterproof, and anti-aging exterior characteristics.
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Click to enlargeSpecifications
AUTOOL BMW 20-Pin To 16-Pin OBD2 Adapter Specifications
Review the connector type, cable length, weight, material, diameter, and connector dimensions before ordering.
| Core Specifications | |
| Product | AUTOOL BMW 20-Pin To 16-Pin OBD2 Extension Cable Connector |
| Product Type | OBD2 adapter cable |
| Connector Type | BMW 20-pin to 16-pin OBD2 |
| Application | BMW 20-pin car diagnostic interface |
| Cable Length | 400mm / 15.74 inch |
| Net Weight | 190g |
| Material | Nylon |
| Cable Diameter | 7.00mm |
| 16-Pin Connector Width | 40mm / 1.57 inch |
| 20-Pin Connector Size | 42mm / 1.65 inch |
| Cable Core | All-copper wire |
| Warranty | 3-year warranty support |
Click to enlarge
Click to enlargeCore Specifications
Product TypeOBD2 adapter cable
Connector TypeBMW 20-pin to 16-pin OBD2
ApplicationBMW 20-pin car diagnostic interface
Length400mm / 15.74 inch
Weight190g
MaterialNylon
Diameter7.00mm
16-Pin Connector Width40mm / 1.57 inch
20-Pin Connector Size42mm / 1.65 inch
Cable CoreAll-copper wire
Before You Order And Use
Before You Order And Use
This is a connector adapter cable. Confirm the vehicle diagnostic port and your diagnostic tool connector before ordering.
Check The Vehicle Port
Use this adapter only when your vehicle has a BMW 20-pin diagnostic interface that matches the connector.
For 16-Pin Tool Connection
The adapter provides a 16-pin OBD2 connector side for compatible diagnostic tools.
Adapter Cable Only
This cable does not add diagnostic software, vehicle coverage, coding, or programming functions by itself.
Scanner Support May Vary
Available diagnostic functions depend on the connected scan tool and the supported systems on the vehicle.
Do Not Force The Pins
Align the connector before plugging in. Do not force the connector if the pin shape or orientation does not match.
Not A Universal Compatibility Promise
A 20-pin to 16-pin connector conversion does not ensure that every 16-pin OBD2 scanner can access every BMW system.
Click to enlargeWhat Is In The Box
What Is In The Box
The package image shows the AUTOOL adapter cable and AUTOOL package bag. No diagnostic scanner is included.
Adapter Cable1 × AUTOOL BMW 20-pin to 16-pin OBD2 extension cable connector
Package BagAUTOOL protective package bag shown in the product list image
Not IncludedDiagnostic scanner, vehicle diagnostic tool, or extra accessories are not shown as included.
Package ConfirmationRefer to the packing list image for the final received items.
Questions And Answers
These answers cover the adapter purpose, BMW 20-pin compatibility, 16-pin scanner connection, diagnostic function limits, specifications, materials, package contents, and support.
It is used to connect a BMW 20-pin diagnostic interface to a standard 16-pin OBD2 diagnostic connector, allowing a compatible diagnostic tool to connect through the adapter cable.
No universal fitment should be assumed. This adapter is for BMW vehicles equipped with a matching 20-pin diagnostic interface. Check the vehicle diagnostic port shape and pin layout before ordering.
The cable provides a 16-pin OBD2 connector side, but scanner compatibility and available diagnostic functions depend on the scan tool and the vehicle system. The cable itself does not ensure support for every scanner or every control module.
No. This product is an adapter cable only. It changes the connector access from BMW 20-pin to 16-pin OBD2, while all diagnostic, coding, programming, and service functions depend on the diagnostic tool and vehicle support.
The cable length is 400mm / 15.74 inch, net weight is 190g, material is nylon, cable diameter is 7.00mm, the 16-pin connector width is 40mm / 1.57 inch, and the 20-pin connector size is 42mm / 1.65 inch.
The cable body uses nylon material and is shown with waterproof, high-temperature resistance, and double-protection characteristics. The cable is manufactured with all-copper wire to help provide stable and reliable data transmission.
The package image shows 1 AUTOOL BMW 20-pin to 16-pin OBD2 adapter cable and an AUTOOL package bag. A diagnostic scanner or additional vehicle diagnostic tool is not shown as included.
The product images highlight 3-year warranty support. Contact AUTOOL Store if you need help confirming compatibility, package contents, order support, or after-sales service.
Warranty And Contact
Warranty And Contact
Contact AUTOOL Store before ordering if you need help confirming whether your vehicle port and diagnostic tool connector match this BMW 20-pin to 16-pin OBD2 adapter cable.
Pre-Sales And Product Support
Support can help confirm BMW 20-pin interface fitment, 16-pin scan tool connection, package contents, cable specifications, warranty, and after-sales service.
- BMW 20-pin diagnostic interface confirmation
- 16-pin OBD2 diagnostic tool connection check
- Package list and cable specification confirmation
- Warranty and after-sales support
- Order support for adapter cable purchases
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