Connect a BMW 20-Pin Diagnostic Port to a 16-Pin Scan Tool
This short passive cable links a matching BMW 20-pin diagnostic socket to a compatible 16-pin OBD2 tool. It only routes the existing signals; scan, coding and programming functions still depend on the vehicle and the connected tool.
- BMW 20-Pin to 16-Pin
- 40 cm Cable
- All-Copper Core
- 7.00 mm Nylon Cable
- Passive Adapter
Key Features
-
Direct Port Adaptation
Routes a matching BMW 20-pin interface to a 16-pin OBD2 connector without protocol conversion.
-
All-Copper Conductors
All-copper wire supports stable data transmission during the diagnostic connection.
-
Thicker Cable Body
The cable body is thicker than the 5.00 mm ordinary OBD cable shown in AUTOOL’s comparison, and at 190 g it is heavier than that cable’s 160 g.
-
Protected Nylon Exterior
The nylon body is built for daily workshop handling and is described as waterproof, heat-resistant, flexible, anti-scalding and anti-aging.
What’s in the Box
- AUTOOL BMW 20-pin to 16-pin OBD2 adapter cable
- AUTOOL package bag
How to Use
- Confirm the vehicle portCheck the diagnostic port shape and pin layout; identify the connector and year, and inspect it for damage.
- Confirm the tool chainVerify the scanner, software, protocol, module, task and any authorization independently of the cable.
- Connect safelyAlign the connectors correctly and never force a mismatched plug.
- Route without strainKeep the cable away from pedals, sharp edges, heat, moving parts and pinched trim.
- Verify communicationRun a read-only connection check first; if communication changes, compare with a direct connection.
Good to Know
Caution
- A compatible 16-pin diagnostic scanner is required and sold separately; its vehicle and module coverage must match the BMW system you need.
- Do not attach unknown or high-current devices to vehicle diagnostic power; follow the vehicle and tool current limits.
- If the tool drops connection, overheats, resets or changes vehicle behavior, stop and return to a known direct connection.
Care
- Keep the cable and connectors clear of pedals, steering, seat tracks, doors and driving controls.
English 
German 
Spanish 