Truck Scanners: Do Heavy-Duty Trucks Use OBD2
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Time to read 2 min
As diagnostic systems evolve in trucks, many people are asking "do heavy-duty trucks use OBD2?" It seems like a pretty straightforward question but truthfully, it really depends on the truck's make and model.
OBD2 is nothing new to trucks and diesel engines. Since 1996, OBD2 has been integrated into most vehicles - including many diesel trucks. Unfortunately, this doesn't mean that your truck scanner will work with all models. You see, every truck manufacturer has specific requirements for connecting to and reading data.
You'll need a specific truck scanner that is compatible with the onboard diagnostics system to communicate with each vehicle.
3 Main Types of Diagnostic Ports on Trucks
There are 3 main types of diagnostic ports across light and heavy-duty vehicles: the OBDII Port, 6-Pin (J1708) and 9-Pin (J1939).
- OBDII is typically found across light and medium-duty trucks.
- 6-pin & 9-Pin are mostly found on the heavy-duty trucks.
Its also worth a mention that there are some vehicles that will have both OBDII and a 6 or 9-Pin diagnostic port.
When using a truck scanner, it is important to identify and use the correct adapter. Using a cheap or incorrect adapter can lead to loss of communication or damage to your equipment.
Purchasing a Truck Scanner
When purchasing a truck scanner, it is important to identify its compatibility with your vehicles. There is no scan tool that has full diagnostic capabilities for every vehicle.
Scan tool manufacturers will often provide a list of compatible vehicles for specific functions. You can find this information on their website or through an authorised retailer.
If want to find the right scan tool for your needs, you can get in contact with us here!
Our Recommendations
Can a Single Scan Tool do it All? Introducing the FCAR F7S-G
There is no single scan tool that will cover every brand out there - but the FCAR F7S-G sure does come close!
Here's what you need to know:
Wide Coverage: Supports 12V & 24V vehicles including passenger cars, trucks, buses, and heavy equipment.
Multi-Brand Diagnostics: Works with major brands like Kenworth, Isuzu, CAT, Volvo, Hino, and more.
Advanced Functions: Includes DPF regen, injector coding, ABS, transmission resets, VGT programming and more.
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Frequently Asked Questions
Can You Use an OBD2 Scanner on a Diesel Truck
Yes, with the right truck scanner (and adapter if necessary) you can carry out diagnostic work on trucks.
Do I need a Truck Scanner?
If you are a professional workshop or regularly work on heavy-vehicles, a quality truck scan tool, like the FCAR F7S-G, is a highly worthwhile investment.
Do You Need a Special Tool to Read Trucks?
Yes, you will need a commercial vehicle scan tool that is compatible with your vehicle to perform diagnostics on trucks.
Do Trucks have OBDII Ports?
Many light and medium-duty trucks are equipped with OBDII Ports. Heavy-duty trucks typically have a 6-Pin (J1708) or 9-Pin (J1934) connector.
