Despite they are one of the best commercial trucks available on the market, Peterbilt 379 electrical problems can be a challenge when you do not know how to troubleshoot them. In this regard, we wanted to compile this guide for you. After reading this guide, you can troubleshoot the problems on your own.
Before starting, we would like to note that you can find the electrical panel in the front cab of your truck. Depending on the model, it may be in front of the passenger’s or driver’s seat. Here, you can troubleshoot all kinds of electrical problems in your truck.
How to Start Troubleshooting Peterbilt 379 Electrical Problems?
As you can guess, you need to reach the electric panel first to start troubleshooting Peterbilt 379 electrical problems. If you have no experience with fixing your truck, then it may be a great idea to visit a mechanic.
On the other hand, if you believe that you can handle the problem on your own, you can follow the following information. We have provided everything that you can do on your own to troubleshoot the problem. In case, you cannot address the problem, then you may have to visit a mechanic too.
Resetting Your Circuit Breaker
The first and easiest thing to do to troubleshoot Peterbilt 379 electrical problems is resetting your circuit breaker. You can think of it as restarting your computer when something goes wrong. In general, it works for quick fixes and minor problems.
For example, if your radio is not working, resetting the circuit breaker may help. Depending on the model, you may have two options. One of them is you may see a button on the circuit to reset it. If there are no buttons, then you need to unplug and plug the circuit back.
Checking for Corrosion for Peterbilt 379 Electrical Problems
One of the common problems that lead to Peterbilt 379 electrical problems is corrosion. This is not a special problem only for Peterbilt trucks but all trucks. All you need to do is take an electric torch and examine the cables in the electric panel.
You need to check the around of your electrical panel for corrosion. If you see any cables that are damaged, then replacing them can easily eliminate the problem for you. However, if you are unsure or uncomfortable about replacing them, you should visit a mechanic.
Checking for Missing Wire Harnesses
If you recently visited a mechanic and fixed your truck for anything but now you have Peterbilt 379 electrical problems, then you may need to check missing wire harnesses. Mechanics usually forget some parts, after all, they are human too.
On the other hand, some cables may also be a little bit loose. All you need to do is check for missing wire harnesses and fix them. After that, you can easily troubleshoot most of the electrical problems on your own. Of course, you need to know about the wire harness to use this method. Otherwise, you may make things worse.