P0180 Code: Fuel Temperature Sensor “A” Circuit

The fuel temperature sensor and fuel pressure sensor send voltage signals to the powertrain control module (PCM) to control fuel pump speed. The fuel temperature readings are also used to calculate fuel density for fuel flow values.

If the PCM detects unusual signals from the fuel temperature sensor, on-board diagnostics (OBD) will log a P0180 fault code.

What Does the P0180 Code Mean?

Diagnostic trouble code (DTC) P0180 stands for “Fuel Temperature Sensor “A” Circuit.”

Vehicles with an electronic returnless type of fuel injection have engine fuel temperature sensors. Sometimes, the sensor is integrated into a single unit with the flex fuel sensor, providing the PCM with information regarding fuel temperature and density.

If the PCM detects that the signal from the sensor is outside the programmed range, it will store a P0180 code.

Note: The definition of code P0180 might be different depending on the vehicle manufacturer. Consult the appropriate repair manual or repair database for the exact code definition.

What are the Common Causes of the P0180 Code?

• Fuel temperature sensor failure
• Wiring issues
• Faulty PCM

What are the Common Symptoms of the P0190 Code?

• Illuminated check engine light

How to Diagnose the P0180 Code

The P0180 fault code is a generic DTC that can be logged in vehicles with an OBD-II system. While this might be the case, the steps for diagnosis and repair can vary, depending on vehicle specifications.

If you’re not familiar with the process of diagnosing trouble codes, it might be best to have a certified mechanic take a look at your vehicle instead. But if you know how to work your way around diagnosing DTCs, then you can go ahead and do it yourself.

To help you out, we’ve gathered a couple of videos that can show you what the process of diagnosing a P0180 code might involve.

How to Fix the P0180 Code

Attempting to fix a P0180 code can be confusing if you’re not well-versed in automotive repair. If you’re not confident with your DIY skills yet, you can always bring your vehicle to the nearest auto repair shop. Have a trained professional take a look at your daily driver and perform the necessary repairs.

But if you have the tools and technical know-how, feel free to do the repairs on your own. However, keep in mind that there’s no magic bullet that can fix all trouble codes, so it’s important to have the right information before proceeding. You might want to check out guides like those from Chilton or get an ALLDATA subscription, which contains vehicle-specific repair information.

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