Onboard Diagnostics for Heavy-Duty Trucks
A heavy-duty truck’s onboard diagnostics computer (OBS) monitors all of its vital parts, including the engine control unit responsible for controlling how much fuel is injected into cylinders. It also meters out power to different subsystems like ABS brakes or steering mechanisms.
The diesel ECU system works with sensors located throughout the engine compartment to ensure the truck is running at its best. They must be replaced as soon as possible when they go bad because they can sometimes break down or fail without warning.
Common Signs of Electrical & Diagnostics Failure
You’ll know something is wrong when your truck cuts out, won’t start up, or the engine light comes on. It’s important to get it fixed as soon as possible because it could cause damage if you continue to drive with a broken part.
When a diesel ECU system is damaged beyond repair, it will need to be replaced by installing a new ECU. Diesel ECU systems are expensive and difficult to install without the proper training.
Electrical repair Solutions for your heavy-duty truck
When an issue arises in your heavy-duty truck’s ECU, it’s important to run a full diagnostic test to determine the extent of the damage. This can be done using an onboard computer which our garage can connect to your trucks’ computer. Mechanics can diagnose problems by connecting a computer directly into your truck’s ECU via the OBD II port located under the dashboard on most trucks made after 1996.
If there are any damaged sensors to the engine control unit, they should be replaced as quickly as possible. In many cases, a truck with problems with its ECU system may have several different issues going on at once, which can cause serious damage if left for too long.
If the diesel ECU system is completely broken, it needs to be replaced by installing a new ECU. Diesel ECU systems are expensive and difficult to install without the proper training.
If your diesel ECU system isn’t working properly, you can get it fixed by:
- Having faulty sensors replaced or checked for damage
- Replacing the engine control unit with a new one
- Cleaning your truck’s OBD II port to improve connectivity,
- Replacing the entire ECU system with a brand new one.
Frequently Asked Questions
Our certified technicians are equipped to handle a comprehensive range of electrical repairs for all makes and models of heavy-duty trucks. This includes diagnosing and repairing issues with batteries, alternators, and starters, as well as complex computer diagnostics for engine and transmission control modules. We also specialize in servicing and repairing lighting systems, wiring harnesses, dashboard gauges, and advanced electronic systems to ensure every component of your truck’s electrical network is functioning perfectly.
A professional diagnostic test saves you time and money by replacing guesswork with technological precision. Our advanced tools read your truck’s computer codes to rapidly and accurately pinpoint the exact source of any issue, which minimizes costly downtime. This accuracy ensures we only fix what’s necessary, saving you from paying for unnecessary parts or labor. By getting the repair right the first time, we help you avoid minor problems escalating into more expensive system failures down the road.
You should schedule a diagnostic check whenever you experience any noticeable change in your truck’s performance or when a warning light appears on your dashboard. This includes issues like decreased fuel efficiency, loss of power, unusual noises, or changes in shifting patterns. A diagnostic check is also a crucial part of preventative maintenance, as our advanced tools can often identify potential issues within the engine, transmission, or electrical systems before they escalate into more serious and costly repairs.
Schedule Truck Service at Inland Kenworth
To schedule service, fill out the form below or find the nearest location to you and get in touch.