What Is the P1116 Code?
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The P1116 code is a manufacturer-specific code that varies slightly based on the specific manufacturer that you’re working with. However, for most manufacturers, it will have something to do with the ECT sensor or Engine Coolant Temperature sensor. For most manufacturers, this code indicates that the temperature sensor is out of range or self-test range; this means that there’s an issue with the temperature sensor not sending back the appropriate testing voltages, and it may come bundled with other codes that also indicate more about the temperature issues you’re experiencing.
More About the P1116 Code
For Acura, Buick, Cadillac, Chevrolet, Ford, GMC, Honda, Lexus, Lincoln, Mazda, Mercury, Scion, Suzuki, and Toyota vehicles, this code has something to do with your vehicle’s engine coolant temperature sensor and related issues. However, there are also some other manufacturer-specific codes, including these:
- HO2S Sensor Heater Circuit – Audi, Volkswagen
- Mass Or Volume Air Flow Circuit Range/Performance Problem Bank 2 – BMW, MINI
- Boost Pressure Sensor Malfunction – Hyundai
- Engine Torque Control Cut Signal Circuit Low Input – Subaru
Remember, it’s always important to specifically check what the description of a code is for, even if an OBD-II code is listed as generic. If the description doesn’t match up, then you’ll want to do some more investigation before continuing with any repairs.
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What Are the Symptoms of a P1116 Code?
The check engine light is probably going to be the most notable symptom of the P1116 code. Outside of this, you might note some issues with your vehicle’s temperature gauge, including indicating that the coolant temperature is either extremely low or extremely high. However, in some cases, you might not notice any symptoms outside the check engine light.
What Are Some Causes of a P1116 Code?
There are many reasons you might experience the P1116 code. It may be due to issues with a low engine coolant level, which is often the easiest way to fix the issue. The ECT sensor may also have issues with wiring damage, including a short or open circuit, or your ECT sensor or engine coolant thermostat itself may be faulty. Finally, in very rare cases, you may find that the powertrain control module (PCM) is damaged.
How Serious Is the P1116 Code?
Assume that this code is fairly serious. Although this code may not come with drivability problems, the problems that it causes can eventually escalate into much more harmful and expensive issues that you’ll need to deal with. A low level of engine coolant, for example, can eventually turn into an engine that overheats constantly, even if it only overheats slightly, eventually harming the vehicle overall. The severity of the code may not be high now, but it’s always good to nip it in the bud.
Can I Still Drive with a P1116 Code?
While many P1116 codes don’t come with any serious drivability issues, especially if the code is showing up all by itself, you shouldn’t drive on it, especially not for a long period of time. The P1116 code has to do with your vehicle’s engine coolant system, which helps keep your engine at an acceptable temperature. Engines get extremely hot without the coolant system, even when driving at a normal highway speed, and that heat can eventually cause long-term damage. Avoid driving with this code active and instead talk to an expert.
How Easy Is It to Diagnose a P1116 Code?
The diagnostic process for the P1116 code starts with determining the actual problem. You may need to check the engine coolant level, the ECT sensor, the ECT itself, and even the PCM in some rare cases. If you don’t have the necessary tools or experience to go through all of these processes, then you’ll have a much more difficult time diagnosing this code. This is why it’s best to leave it up to a professional.
How Difficult Is It to Inspect a P1116 Code?
The inspection process can also be difficult; not only is the ECT sensor wiring probably not something you have a lot of experience with, but also if your vehicle does have issues with the wiring, you need to be able to spot and fix it. That’s not an experience that many people have. Instead of trying to go at this one yourself, it’s best to get an expert on board to help.
Need Additional Help with Your P1116 Code?
There are plenty of codes that might lend themselves well to professional help, and the P1116 code is one of them. If you’re facing this code within your vehicle, then you may want to simply request help from an expert, as a professional will be able to check out your vehicle and fix it effectively.
To start, use KBB to find a repair shop in your area. There are often dozens and sometimes hundreds of repair shops in every city, and KBB can help you locate one that will be able to fix your problem.
Additionally, this code often comes with other codes that may indicate other issues within your vehicle. The KBB OBD-II database can give you more insight into codes beyond just the P1116 code.
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