OBD-II Connectors: Difference between revisions
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==== OBD-II Connector Parts ==== | ==== OBD-II Connector Parts ==== | ||
OBD-II compatible connectors are available from a variety of manufacturers: | OBD-II compatible connectors are available from a variety of manufacturers: | ||
{| class="wikitable" | {| class="wikitable sortable mw-collapsible mw-collapsed" | ||
|+Female OBD-II Connectors: | |+Female OBD-II Connectors: | ||
!Image | !Image | ||
| Line 35: | Line 35: | ||
|[https://www.mouser.com/ProductDetail/Aptiv-formerly-Delphi/12185280?qs=cNqfq%252BgdtHNF%252BvHq%2FBA7%2FA%3D%3D Mouser] | |[https://www.mouser.com/ProductDetail/Aptiv-formerly-Delphi/12185280?qs=cNqfq%252BgdtHNF%252BvHq%2FBA7%2FA%3D%3D Mouser] | ||
|- | |- | ||
| | |[[File:51115-1601.png|none|thumb]] | ||
|51115‑1601 | |51115‑1601 | ||
|Molex | |Molex | ||
| Line 45: | Line 45: | ||
|[https://www.mouser.com/ProductDetail/Molex/51115-1601?qs=jbJnFeK%2FK6zZcKZXktEb8w%3D%3D Mouser] | |[https://www.mouser.com/ProductDetail/Molex/51115-1601?qs=jbJnFeK%2FK6zZcKZXktEb8w%3D%3D Mouser] | ||
|- | |- | ||
| | |[[File:7183766530.png|none|thumb]] | ||
|7183766530 | |7183766530 | ||
|Yazaki | |Yazaki | ||
| Line 55: | Line 55: | ||
|[https://www.mouser.com/ProductDetail/Yazaki/7183766530?qs=yqaQSyyJnNgFpqfDkp%2F9Jg%3D%3D Mouser] | |[https://www.mouser.com/ProductDetail/Yazaki/7183766530?qs=yqaQSyyJnNgFpqfDkp%2F9Jg%3D%3D Mouser] | ||
|} | |} | ||
{| class="wikitable" | {| class="wikitable sortable mw-collapsible mw-collapsed" | ||
|+Female OBD-II Terminals: | |+Female OBD-II Terminals: | ||
!Part Number | !Part Number | ||
| Line 93: | Line 93: | ||
|22 AWG to 20 AWG | |22 AWG to 20 AWG | ||
|Tin | |Tin | ||
| | |[https://www.molex.com/webdocs/datasheets/pdf/en-us/0504208000_CRIMP_TERMINALS.pdf Datasheet] | ||
|[https://www.mouser.com/ProductDetail/Molex/50420-8000-Cut-Strip?qs=ZXBb0xZ9WeAToGJdkbGJWQ%3D%3D Mouser] | |[https://www.mouser.com/ProductDetail/Molex/50420-8000-Cut-Strip?qs=ZXBb0xZ9WeAToGJdkbGJWQ%3D%3D Mouser] | ||
|- | |- | ||
| Line 105: | Line 105: | ||
|[https://www.mouser.com/ProductDetail/Yazaki/7116154602?qs=yqaQSyyJnNhWC68bVWJXXw%3D%3D Mouser] | |[https://www.mouser.com/ProductDetail/Yazaki/7116154602?qs=yqaQSyyJnNhWC68bVWJXXw%3D%3D Mouser] | ||
|} | |} | ||
{| class="wikitable" | {| class="wikitable sortable mw-collapsible mw-collapsed" | ||
|+Male OBD-II Connectors: | |+Male OBD-II Connectors: | ||
!Image | !Image | ||
| Line 126: | Line 126: | ||
|[https://www.mouser.com/ds/2/105/obdII-5963.pdf Aptiv Metri-Pack 150 OBD Catalog] | |[https://www.mouser.com/ds/2/105/obdII-5963.pdf Aptiv Metri-Pack 150 OBD Catalog] | ||
|[https://www.mouser.com/c/?application=OBD%20II%20-%20Diagnostic Mouser] | |[https://www.mouser.com/c/?application=OBD%20II%20-%20Diagnostic Mouser] | ||
[https://www.tti.com/content/ttiinc/en/apps/part-detail.html?partsNumber=12110252&mfgShortname=DCS&utm=Aptiv1&channel=link&source=aptiv&campaigns=tti-brand TTI] | |||
|- | |- | ||
|[[File:685031602.png|none|thumb]] | |[[File:685031602.png|none|thumb]] | ||
| Line 137: | Line 138: | ||
|[https://www.molex.com/en-us/products/part-detail/685031602 Mouser] | |[https://www.molex.com/en-us/products/part-detail/685031602 Mouser] | ||
|} | |} | ||
{| class="wikitable" | {| class="wikitable sortable mw-collapsible mw-collapsed" | ||
|+Male OBD-II Terminals: | |+Male OBD-II Terminals: | ||
!Part Number | !Part Number | ||
!Manufacturer | !Manufacturer | ||
!Gender | !Gender | ||
!Series | !Series | ||
!Applicable wire size | |||
!Plating | |||
!Catalog / Datasheet | !Catalog / Datasheet | ||
! | !Where to buy | ||
|- | |- | ||
| | |12047581 | ||
| | |Aptiv | ||
| | |Male | ||
| | |[[Aptiv Metri-Pack 150]] | ||
| | |18 - 20AWG | ||
| | |Tin | ||
| | |[https://www.aptiv.com/en/solutions/connection-systems/catalog/item?id=12047581 Manufacturer page] | ||
|[https://www.arrow.com/en/products/12047581/aptiv Arrow] | |||
[https://www.tti.com/content/ttiinc/en/apps/part-detail.html?partsNumber=12047581&mfgShortname=DCS&utm=Aptiv1 TTI] | |||
[https://www.mouser.com/ProductDetail/Aptiv-formerly-Delphi/12047581?qs=xyz6lfZ1ktKy12PwzD2KSA%3D%3D Mouser] | |||
|- | |- | ||
| | |579649702 | ||
| | |Molex | ||
| | |Male | ||
| | |[[Molex OBD‑II Series]] | ||
| | |AVS(CAVS) 0.3-0.5 mm2 | ||
| | |Tin | ||
| | |[https://www.molex.com/en-us/products/part-detail/685031602?display=pdf Datasheet] | ||
[https://www.molex.com/en-us/products/part-detail/579649702 Manufacturer page] | |||
| | |[https://www.digikey.com/en/products/detail/molex/0579649702/2404960 DigiKey] | ||
[https://www.newark.com/molex/57964-9702/connector-contact-pin-crimp-terminal/dp/99AC1781 Newark] | |||
|} | |} | ||
| Line 230: | Line 230: | ||
==== PIDs / Codes ==== | ==== PIDs / Codes ==== | ||
SAE standard J1979 defines many OBD-II PIDs. All on-road vehicles and trucks sold in North America are required to support a subset of these codes, primarily for state mandated emissions inspections. Manufacturers also define additional PIDs specific to their vehicles. Though not mandated, many motorcycles also support OBD-II PIDs. | SAE standard J1979 defines many OBD-II PIDs. All on-road vehicles and trucks sold in North America are required to support a subset of these codes, primarily for state mandated emissions inspections. Manufacturers also define additional PIDs specific to their vehicles. Though not mandated, many motorcycles also support OBD-II PIDs. | ||
[[File:J1939.png|thumb|500x500px|J1939 (Heavy Duty OBD-II Connector) Pinout]] | |||
==== Heavy Duty OBD-II Connectors ==== | ==== Heavy Duty OBD-II Connectors ==== | ||
Heavy duty vehicles (greater than 14,000 lb or 6,400 kg) made after 2010, for sale in the US are allowed to support OBD-II diagnostics through SAE standard J1939-13 (a round diagnostic connector) according to CARB in title 13 CCR 1971.1. Some heavy duty trucks in North America, however, use the SAE J1962 OBD-II diagnostic connector that is common with light duty vehicles, notably Mack and Volvo Trucks. | Heavy duty vehicles (greater than 14,000 lb or 6,400 kg) made after 2010, for sale in the US are allowed to support OBD-II diagnostics through SAE standard J1939-13 (a round diagnostic connector) according to CARB in title 13 CCR 1971.1. Some heavy duty trucks in North America, however, use the SAE J1962 OBD-II diagnostic connector that is common with light duty vehicles, notably Mack and Volvo Trucks. | ||
==== Motorcycle OBD Connectors ==== | |||
In 2016, the diagnostic connector for motorcycles and mopeds was standardized to a 6 pin, 0.64mm tab width (025), waterproof connector. For more details, see [[Motorcycle OBD Connectors]]. | |||
[[Category:Connectors]] | [[Category:Connectors]] | ||
Latest revision as of 13:03, 19 December 2025
The OBD-II data link connector (post-1996 light duty vehicles) is a standardized diagnostic connection for communicating Parameter IDs (PIDs) from a vehicle to a diagnostic tool.
Light Duty (passenger cars and trucks) OBD-II Connectors (Type A and B)
The SAE J1962 specification provides for two standardized hardware interfaces, called type A and type B. Both are female, 16-pin (2x8), D-shaped connectors, and both have a groove between the two rows of pins. Type B has an interrupted groove in the middle, so it isn't possible to plug a type A male connector into a type B socket. It is possible, however, to mate a type B male plug to a type A female socket. The type A connector is used for vehicles that use 12V system, whereas type B is used for 24V vehicles and it is required to mark the front of the D-shaped area in blue color.
OBD-II Connector Parts
OBD-II compatible connectors are available from a variety of manufacturers:
| Image | Part Number | Manufacturer | Gender | Type | Mounting Style | Series | Catalog / Datasheet | Mouser Link |
|---|---|---|---|---|---|---|---|---|
 |
12110250 | Aptiv | Female | A | Fastener mount | Aptiv Metri-Pack 150 | Aptiv Metri-Pack 150 OBD Catalog | Mouser |
 |
12185280 | A | Panel mount | Mouser | ||||
 |
51115‑1601 | Molex | Female | A | Panel mount | Molex OBD‑II Series | Datasheet | Mouser |
 |
7183766530 | Yazaki | Female | A | Panel mount | Yazaki OBD-II Series | Datasheet | Mouser |
| Part Number | Manufacturer | Gender | Series | Applicable wire size | Plating | Catalog / Datasheet | Mouser Link |
|---|---|---|---|---|---|---|---|
| 12129373 | Aptiv | Female | Aptiv Metri-Pack 150 | 0.5 - 0.35 mm2 | Tin | Datasheet | Mouser |
| 12129484 | 1.0 - 0.8 mm2 | Tin | Mouser | ||||
| 13525297 | 0.5 - 0.35 mm2 | Gold | Datasheet | Mouser | |||
| 50420‑8000 | Molex | Female | Molex OBD‑II Series | 22 AWG to 20 AWG | Tin | Datasheet | Mouser |
| 7116154602 | Yazaki | Female | Yazaki OBD-II Series | CAVS 0.3~0.85mm2 | Tin | Datasheet | Mouser |
| Image | Part Number | Manufacturer | Type | Color | Gender | Series | Catalog / Datasheet | Mouser Link |
|---|---|---|---|---|---|---|---|---|
 |
12110252 | Aptiv | A | Red | Male | Aptiv Metri-Pack 150 | Aptiv Metri-Pack 150 OBD Catalog | Mouser |
 |
685031602 | Molex | A | Black | Male | Molex OBD‑II Series | Datasheet | Mouser |
| Part Number | Manufacturer | Gender | Series | Applicable wire size | Plating | Catalog / Datasheet | Where to buy |
|---|---|---|---|---|---|---|---|
| 12047581 | Aptiv | Male | Aptiv Metri-Pack 150 | 18 - 20AWG | Tin | Manufacturer page | Arrow |
| 579649702 | Molex | Male | Molex OBD‑II Series | AVS(CAVS) 0.3-0.5 mm2 | Tin | Datasheet | DigiKey |
OBD-II Pinout
| Pin # | Function / Description |
|---|---|
| 1 | Manufacturer-specific |
| 2 | SAE J1850 Bus+ (VPW/PWM) |
| 3 | Manufacturer-specific |
| 4 | Chassis ground |
| 5 | Signal ground |
| 6 | CAN High (ISO 15765‑4) |
| 7 | K‑Line (ISO 9141‑2 / ISO 14230‑4 KWP2000) |
| 8 | Manufacturer-specific |
| 9 | Manufacturer-specific |
| 10 | SAE J1850 Bus– (PWM only) |
| 11 | Manufacturer-specific |
| 12 | Manufacturer-specific |
| 13 | Manufacturer-specific |
| 14 | CAN Low (ISO 15765‑4) |
| 15 | L‑Line (ISO 9141‑2 / older KWP) |
| 16 | Battery power (unswitched +12V) |
PIDs / Codes
SAE standard J1979 defines many OBD-II PIDs. All on-road vehicles and trucks sold in North America are required to support a subset of these codes, primarily for state mandated emissions inspections. Manufacturers also define additional PIDs specific to their vehicles. Though not mandated, many motorcycles also support OBD-II PIDs.
Heavy Duty OBD-II Connectors
Heavy duty vehicles (greater than 14,000 lb or 6,400 kg) made after 2010, for sale in the US are allowed to support OBD-II diagnostics through SAE standard J1939-13 (a round diagnostic connector) according to CARB in title 13 CCR 1971.1. Some heavy duty trucks in North America, however, use the SAE J1962 OBD-II diagnostic connector that is common with light duty vehicles, notably Mack and Volvo Trucks.
Motorcycle OBD Connectors
In 2016, the diagnostic connector for motorcycles and mopeds was standardized to a 6 pin, 0.64mm tab width (025), waterproof connector. For more details, see Motorcycle OBD Connectors.
