Best OBD2 Scanner Extension Cable: 5 Picks (2026)

The scan tool lives in the toolbox and the OBD2 port hides under the dash, and the short cable on the tool never quite gets to where the mechanic wants to sit. An extension cable moves the scan tool to the passenger seat or the workbench, so codes can be read with the door open and the laptop out of the footwell. This guide compares the best obd2 scanner extension cable picks by stated length, pins, material and warranty, so the cable that goes on the port fits the job it has to reach.

GarageToolHQ earns a commission when you buy through links on this page, at no extra cost to you. Read our affiliate disclosure.

Picks for the garage

#	Product	Shop Score	Buy
1	ZIMISI OBD2 Extension Cable (5FT/1.5M)	9.6/10	Buy on Amazon
2	bbfly OBD2 Extension Cable	9.5/10	Buy on Amazon
3	bbfly-B6 OBD2 Splitter OBDII Extension Cable	9.4/10	Buy on Amazon
4	iKKEGOL 5ft 150cm 1.5M OBD-II OBD2 16 Pin Auto Car	9.4/10	Buy on Amazon
5	iKKEGOL 1ft Feet 30cm/12 OBD II OBD2 16 Pin Male	9.3/10	Buy on Amazon

1

ZIMISI OBD2 Extension Cable (5FT/1.5M)

ZIMISI·9.6/10 Shop Score

i

The Shop Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 5 ft flat ribbon OBD2 extension cable with all-copper wire, a flame-retardant high-temperature outer and a 16-pin male-to-female interface.

Check price on Amazon

Pros

• All-copper wire for a stable power supply
• Flame-retardant, high-temperature outer
• Flat ribbon shape fits small spaces and limited clearance
• 16-pin male-to-female interface, precise pin by pin

Cons

• Warranty is listed as 0.2 with no unit, so no usable term is stated
• Spec table lists 59.05 in on every side, which cannot be the cable size
• No daisy-chain statement
• No splitter function: one male to one female only

2

bbfly OBD2 Extension Cable

bbfly·9.5/10 Shop Score

i

The Shop Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 5 ft low-profile OBD2 splitter with an ultra-thin design and full 16-pin connection, backed by a six-month guarantee.

Check price on Amazon

Pros

• 5 ft splitter with full 16-pin connection one by one
• Ultra-thin, ultra flat low profile design
• Compatible with any vehicle that has an OBD2 interface
• Six-month guarantee stated

Cons

• No stated wire material
• No stated weight
• No daisy-chain statement
• Single port only, unlike the 1-to-2 B6 splitter

3

bbfly-B6 OBD2 Splitter OBDII Extension Cable

bbfly·9.4/10 Shop Score

i

The Shop Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 10-pack of 1 ft OBD2 splitters with 1 male and 2 female ends, passing all 16 pins straight through with no shared ground wires.

Check price on Amazon

Pros

• 10-pack: 1 male to 2 female on every cable
• Passes all 16 pins straight through
• No shared ground wires
• Ultra flat low profile, easy to carry

Cons

• 1 ft length suits a splitter left on the port, not a long run
• No warranty term is stated
• No stated wire material
• Listed weight covers the 10-pack, not one cable

4

iKKEGOL 5ft 150cm 1.5M OBD-II OBD2 16 Pin Auto Car

iKKEGOL·9.4/10 Shop Score

i

The Shop Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 5 ft OBD2 extension cable with a 16-pin male to female connection that daisy-chains with more cables for longer runs.

Check price on Amazon

Pros

• 5 ft male to female, 16-pin
• Daisy-chains with more cables for longer runs
• High-quality materials for flexibility and durability
• Compatible with diagnostic tools with a 16-pin socket

Cons

• No warranty term is stated
• No stated wire material
• No stated connector detail beyond 16-pin
• No splitter function

5

iKKEGOL 1ft Feet 30cm/12 OBD II OBD2 16 Pin Male

iKKEGOL·9.3/10 Shop Score

i

The Shop Score runs from 9.2 to 9.8 and weighs performance (35%), build (25%), value (25%), safety (10%, where it applies) and warranty (5%), using only what the manufacturer and the listing publish. How we pick ›

A 1 ft OBD2 extension cable with a 16-pin male to female connection that daisy-chains with more cables for longer runs.

Check price on Amazon

Pros

• 1 ft male to female, 16-pin
• Daisy-chains with more cables for longer runs
• High-quality materials for flexibility and durability
• Compatible with diagnostic tools with a 16-pin socket

Cons

• No warranty term is stated
• No stated wire material
• Spec table lists a weight of 0.000625 lb, which cannot be right
• 1 ft length suits a short hop only

Compared on paper

Every rating comes from the brand’s listing and is not a shop test (gathered 12 November 2026).

How the points were given

Each cable is scored out of 10 on performance, build, value, safety and warranty. How we pick explains the weights. For an extension cable, safety means a stated flame-retardant outer or a stated short-circuit protection on the listing; only the ZIMISI states one. 1 listing states a usable warranty term: the bbfly A7 at six months.

No score drops under 9.2 or climbs past 9.8; a tool’s place inside those bounds is set by its weighted point total.

What the listings tell you

We read 5 OBD2 extension cable listings. All 5 state a length and a 16-pin connection, and 1 states a usable warranty term. Lengths run from 1 ft to 5 ft, and 2 listings state daisy-chaining for longer runs. One listing gives a warranty line with no unit, and one lists a weight that cannot be right.

Best obd2 scanner extension cable: buying guide

Length first

Length decides where the scan tool sits. The cables here run from 1 ft to 5 ft, with the 5 ft cables reaching across the cabin and the 1 ft cables staying close to the port. The iKKEGOL cables daisy-chain, so short cables join into a longer run. Measure the run from the port to where the tool will sit before ordering.

Splitter or straight extension

A splitter adds a second female port, so a GPS tracker and a scan tool can share one OBD2 port. The bbfly-B6 gives 1 male to 2 female ends in a 10-pack, while the bbfly A7 is a single male to female splitter. The ZIMISI and iKKEGOL cables are straight extensions with one male and one female end.

Pins and wire

Every cable here passes 16 pins, and the bbfly-B6 states all 16 pins pass straight through with no shared ground wires. The ZIMISI states all-copper wire and a flame-retardant outer, the only stated wire material here. The other listings state no wire material, so their build rests on the flexibility claim alone.

Low profile and flat ribbon

Under-dash space is tight, so profile matters. The ZIMISI uses a flat ribbon shape for small spaces, and both bbfly cables state an ultra flat low profile. A flat cable hides easily and wires around trim without a bulky plug in the way.

Warranty and weight

Only the bbfly A7 states a usable warranty term, six months. The ZIMISI warranty line reads 0.2 with no unit, and the other listings state no term. Weights vary too, and the 1 ft iKKEGOL lists a weight that cannot be right.

Once the cable is in, a OBD2 scanner for DIY reads the codes through the extension.

Garage Fit Check

• Measure the run from the port to where the scan tool will sit: cables here run from 1 ft to 5 ft.
• Count the ports: a splitter adds a second female port, a straight extension adds none.
• Check the pins: every cable here passes 16 pins, and the bbfly-B6 states no shared ground wires.
• Check the warranty line: only the bbfly A7 states a usable term, six months.
• Keep a spare in the toolbox: the 10-pack bbfly-B6 covers more than one vehicle.

FAQ: garage tools

What length OBD2 extension cable do I need?

Cables here run from 1 ft to 5 ft. A 1 ft cable stays close to the port, while a 5 ft cable spans the cabin. The iKKEGOL cables daisy-chain, so short cables join into a longer run. Measure the run before ordering.

Can I plug a GPS tracker and a scan tool into one OBD2 port?

Yes, with a splitter. The bbfly-B6 gives 1 male to 2 female ends, so a GPS tracker and a scan tool can share one port. The bbfly A7 is a single male to female splitter, and the ZIMISI and iKKEGOL cables are straight extensions with one port each.

Do all 16 pins pass through on these cables?

Every cable here states a 16-pin connection. The bbfly-B6 states all 16 pins pass straight through with no shared ground wires, and the bbfly A7 states full 16-pin connection one by one. The ZIMISI states a 16-pin male-to-female interface with precise pin by pin connection.

Can I chain OBD2 extension cables together?

The iKKEGOL cables state daisy-chaining: more cables join together to achieve a longer length. The other listings state no chaining, so a longer run needs a longer cable or a stated chainable one.

What does a warranty term mean on an OBD2 cable?

Only the bbfly A7 states a usable term, six months. The ZIMISI line reads 0.2 with no unit, and the other listings state no term. A stated term is the only warranty figure to compare here.

Related: the best OBD2 scanner for DIY, the best digital micrometer with stand, our diagnostics and electrical hub and our guide to the best battery terminal protector under 15.