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Harness Assessment Cheat Sheet

North American Harness Assessment Cheat Sheet

Table of Contents

Table of Contents        1

Vehicle Assessment Instructions        1

Vehicle Type Overview        2

Light-Duty Vehicles        2

Heavy-Duty Trucks        2

GO Rugged        2

Harness Estimates        2

Compatibility Table        3

Equipment & Off Road Assets        6

Finding the Diagnostic Port        6

WARNING! Use Geotab telematics devices only with Geotab-approved harnesses acquired from Geotab-authorized channels. Use of non-Geotab harnesses from unauthorized channels can cause serious safety risks, including fire, and can lead to serious personal injury and/or damage to the vehicle.

Vehicle Assessment Instructions

  1. Request a complete vehicle list from the customer, which includes:
  1. VIN
  2. Manufacturer
  3. Model
  4. Year
  1. Use this Excel template to prepare a list of vehicles for harness assessment.
  1. Ensure that there is no missing information or incomplete entries.
  2. Normalize the manufacturer and model names.
  1. For example, change all variations of model name like F-150 and F150 in a single way.
  1. Use the Summary tab to get counts of each vehicle type.
  1. Use the compatibility table to determine which harnesses are required for each vehicle.

Vehicle Type Overview

Light-Duty Vehicles

All light-duty vehicles made in 1997 and afterwards will have a 16-pin OBD II port. They will be able to use the standard HRN-BS16S4 harness or the HRN-GS16K2 universal T-harness. Review the compatibility table for any exceptions.

Heavy-Duty Trucks

Listed below are a number of common heavy-duty truck manufacturers:

  • International
  • Freightliner
  • Peterbilt
  • Kenworth
  • Sterling
  • Mack
  • Volvo
  • Isuzu
  • Mitsubishi (Fuso)

guide-to-geotab-harnesses-obd-diagram.png

GO Rugged

If ordering a GO RUGGED device the HRN-RS12S2 will be required with any extension or T-harness (including 3-wire harness).

For more detailed information about installation and harness types, please see the Vehicle Specific Installation Notes and the Harness Identification and Application document.

Finding the Diagnostic Port

There are several websites that can help you find the diagnostic port in your vehicle:

VIN Decoding

If you only have a VIN, there are plenty of online VIN decoding sites that you can use to retrieve the Make, Model and Year of a vehicle.

Harness Estimates

Note: Geotab does not guarantee that the following suggestions are 100% accurate. They are best guess and are considered to be estimates based on experience.

Compatibility Table

Light Duty

Make

Model

Year

Straight Harness

T-Harness

Notes

All

All

<1996

HRN-CW03S3

Any vehicle without an OBDII port

All light duty

All

1997+

HRN-BS16S4

HRN-GS16K2

See exceptions below

Ford

Ford

F150–F550

1997+

HRN-BS16S4

HRN-GS16K2

Ford

F650+

1997+

HRN-DS09S4

HRN-GS09K2

Please confirm diagnostic port to ensure it is 9-pin prior to purchasing 9-pin harness. Could have 16-pin OBD II.

Ford

Fiesta

1997+

Must use T-harness

HRN-GS16K2

Must use T-harness due to the location of the OBDII port

Ford

Fusion

1997+

Must use T-harness

HRN-GS16K2

Must use T-harness due to the location of the OBDII port

Dodge

Dodge

All

1997+

HRN-BS16S4

HRN-GS16K2

Please confirm diagnostic port to ensure it is 16-pin OBD II prior to purchasing harness.

GM/Chev

GM/Chev

All light-duty GM/Chevy cars/trucks (i.e. Cruze, Malibu, Silverado, Sierra, etc.)

1997+

HRN-BS16S4

HRN-GS16K2

Please confirm diagnostic port to ensure it is 16-pin OBD II prior to purchasing harness.

Chevrolet

C4–C7 & T6–T8 Series

2006–2009

HRN-BS16S4

HRN-GS16K2

Please confirm diagnostic port to ensure it is 16-pin OBD II prior to purchasing harness.

GMC

C4–C8 & T6–T8 Series

2006–2009

HRN-BS16S4

HRN-GS16K2

Please confirm diagnostic port to ensure it is 16-pin OBD II prior to purchasing harness.

Nissan

Nissan

Frontier

1997+

Must use T-harness

HRN-GS16K2

Must use T-harness due to the location of the OBDII port

Nissan

UD

2009

HRN-DS09S4

HRN-GS09K2

Vehicle has two diagnostic ports — do not connect to OBDII port

Isuzu

Isuzu

All

1997+

HRN-BS16S4

HRN-GS16K2

Please confirm diagnostic port to ensure it is 16-pin OBD II prior to purchasing harness.

Mercedes-Benz

Mercedes

All

1997+

HRN-BS16S4

HRN-GS16K2

Mercedes

Sprinter

2019+

HRN-CP04A2 + HRN-CM24Y1

907 & 910 (EU) chassis only

Hino

Hino

All

1997+

HRN-BS16S4

HRN-GS16K2

Vehicle has two diagnostic ports - Data typically comes through the 16-pin but in some cases the 9-pin. Please contact Geotab to confirm.

Hino

300 Series

1997-2016

HRN-BS16S4

HRN-GS16K2

Hino

200-500 Series

2016+

HRN-CM24Y1 + HRN-CH06A2

Special adapter HRN-CH06A2 harness required

Mitsubishi

Mitsubishi

All Light Duty

1997+

HRN-BS16S4

HRN-GS16K2

Please confirm diagnostic port to ensure it is 16-pin OBD II prior to purchasing harness.

Mitsubishi Fuso

All

<2009

HRN-CW03S3

N/A

Please use HRN-CW03S3 unless confirmed OBDII port with Auxiliary port. If Auxiliary port present, use HRN-BU16Y5.

Mitsubishi Fuso

All

2010+

HRN-BU16Y5

N/A

Must use HRN-BU16Y5.

May require HRN-CW03S3 if no Auxiliary port is available.

Workhorse Chassis

Workhorse Chassis

All

1999–2002

HRN-BS16S4

HRN-GS16K2

Please confirm diagnostic port to ensure it is 16-pin OBD II prior to purchasing harness.

Electric Vehicles

Make

Model

Year

Straight Harness

T-Harness

Notes

Tesla

Tesla

Model S

2012-2015

HRN-CT06A1 + HRN-CM24Y1

N/A

*Please see row below for 2015 Model S

Tesla

Model S

2015+

HRN-CT06A11 + HRN-CM24Y1

N/A

Only for models with last 6 digits of VIN greater than P70000

Tesla

Model X

All

HRN-CT06A11 + HRN-CM24Y1

N/A

Tesla

Model 3

2018+

N/A

HRN-CT20T1

Diagnostic port can be found in the floor in the middle of the rear

Heavy Duty      

Make

Model

Year

Straight harness

T-harness

Notes

All Heavy Duty (see list above)

All

1997–1999

HRN-DS06S4

HRN-DS06T2

International

International

7300–9900

2000–2007

HRN-DS06S4

HRN-DS06T2

International

7300–9900

2008+

HRN-DS09S4

HRN-GS09K2

International

5500i–9900i

2000–2007

HRN-DS06S4

HRN-DS06T2

International

5500i–9900i

2008+

HRN-DS09S4

HRN-GS09K2

Peterbilt & Kenworth

Peterbilt

All

2000–2007

HRN-DS09S4

HRN-GS09K2

Please confirm Diagnostic port as in some cases the vehicle may have a 6-pin port and will require the HRN-DS06T2

Peterbilt

All

2008+

Must use T-harness

HRN-GS09K2

Must use T-harness due to the location of the OBDII port

Peterbilt

All

2017+

Must use T-harness

HRN-GS09K2 & HRN-BS04A1

See next row for more info.

Peterbilt

Paccar Motors MX13 and MX15

All

N/A

HRN-BS04A1

If vehicle is using Paccar Motors MX13 and MX15, must use HRN-BS04A1.

Please see the next row if the vehicle is equipped with a 14 pin (RP1226) port. Must use HRN-CS14S2.

Peterbilt

All models

2019+

HRN-CS14S2

If vehicle is equipped with a 14 pin (RP1226) port, use this harness as more data is sent through this port

Kenworth

All

2000–2012

HRN-DS09S4

HRN-GS09K2

Kenworth

All

2013+

Must use T-harness

HRN-GS09K2

Must use T-harness due to the location of the OBDII port

Kenworth

All

2017+

Must use T-harness

HRN-GS09K2 & HRN-BS04A1

See Installation Notes for more info.

Kenworth

Paccar Motors MX13 and MX15

All

N/A

HRN-BS04A1

If vehicle is using Paccar Motors MX13 and MX15, must use HRN-BS04A1.

Please see the next row if the vehicle is equipped with a 14 pin (RP1226) port. Must use HRN-CS14S2.

Kenworth

All models

2019+

HRN-CS14S2

If vehicle is equipped with a 14 pin (RP1226) port, use this harness as more data is sent through this port

Freightliner

Freightliner

All Medium Duty (i.e. M2 106 Medium Duty)

2000+

HRN-DS09S4

HRN-GS09K2

Freightliner

All Heavy/Super Duty (ie. Cascadia, 114SD, 122SD & 108SD)

2000–2012

HRN-DS09S4

HRN-GS09K2

Freightliner

All Heavy/Super Duty (ie. Cascadia, 114SD, 122SD & 108SD)

2013+

Must use T-harness

HRN-GS09K2

Must use T-harness due to the location of the OBDII port

Freightliner

All models

2019+

HRN-CS14S2

If vehicle is equipped with a 14 pin (RP1226) port, use this harness as more data is sent through this port

Volvo

Volvo

All Heavy Duty (ie. VNM, VNL, VNX, VHD, VAH, VNRe)

2000–2013

HRN-DS09S4

HRN-GS09K2

Volvo

All Heavy Duty (ie. VNM, VNL, VNX, VHD, VAH, VNR)

2014-2018

HRN-BS16S4

HRN-GS16K2

Volvo

VNL

2019

HRN-DS09S4

HRN-GS09K2

Please confirm diagnostic port of 2019 Volvo trucks as we have seen a switch back to 9-pin in the VNL.

Volvo

All models

2019+

HRN-CS14S2

If vehicle is equipped with a 14 pin (RP1226) port, use this harness as more data is sent through this port

Mack

Mack

All

2000–2013

HRN-DS09S4

HRN-GS09K2

Mack

All

2014+

HRN-BS16S4

HRN-GS16K2

Please confirm diagnostic port to ensure it is 16-pin OBD II prior to purchasing harness.

Mack

All models

2019+

HRN-CS14S2

If vehicle is equipped with a 14 pin (RP1226) port, use this harness as more data is sent through this port

Sterling

Sterling

All (except Bullet)

1997–1999

HRN-DS06S4

HRN-DS06T2

Sterling

All (except Bullet)

2000+

HRN-DS09S4

HRN-GS09K2

Sterling

Bullet

2008-2009

HRN-BS16S4

HRN-GS16K2

Equipment & Off Road Assets

Note: The GO RUGGED is mandatory for these vehicles.

Make

Model

Year

Straight harness

T-harness

Notes

All Equipment

All

2000+

See Notes

HRN-GR09K1

General guideline for all yellow iron equipment. Please check the table for specific manufacturers.

Check for diagnostic port. If no port, use HRN-RW03S4. See exceptions below.

Caterpillar

All equipment with diagnostic port

2000–2016

HRN-DS09S4

HRN-GR09K1 + HRN-RMRCA1

Please confirm there is a diagnostic port prior to purchasing harness. If no port exists, HRN-RW03S4 will be required.

Caterpillar

All equipment with 14 pin Deutsch diagnostic port

2016+

HRN-DC14S2

N/A

Please confirm there is a 14 pin diagnostic port prior to purchasing harness. If no port exists, HRN-RW03S4 will be required.

Some 9-pin diagnostic ports in Cat equipment may have a different pin configuration and would require the HRN-DC09T2 & HRN-RS12S2.

John Deere

All

2000+

HRN-DS09S4

HRN-GR09K1 + HRN-RMRCA1

Please confirm there is a diagnostic port prior to purchasing harness. If no port exists, HRN-RW03S4 will be required.

Komatsu

All

2000+

HRN-DS09S4

HRN-GR09K1 + HRN-RMRCA1

Please confirm there is a diagnostic port prior to purchasing harness. If no port exists, HRN-RW03S4 will be required.

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