In most diesel vehicles, a fuel injection system called common rail is used in the fuel system. In this system, there is a common pipe through which the fuel passes, and injectors are connected to this pipe.
One of the two fuel pumps pulls the fuel from the tank to the pipe, and the other provides the fuel pressure in the pipe. The fuel line, which we call a pipe, also has names such as “rail” or” rail”.
In order for the fuel system to work properly, there must be no problems with the ECU connection and the fuel pressure must be “set”.
The valve that regulates the pressure level of the fuel supplied from the fuel pump to the rail and from there to the injectors is called the “Fuel Pressure Regulator”.
The fuel pressure regulator is powered by electricity and is connected to the ECU. It turns on or off according to the signals from the ECU. If these signals are interrupted or the valve fails, the fault code DF053 is generated.
Possible problems with the vehicle with the Renault fault code DF053:
- The lighting of the engine fault lamp
- There are peaks in the vehicle such as stopping, not being able to accelerate
- The vehicle does not work
- Increase in fuel consumption
What is the DF053 Renault fault code ?
Brief description of the DF053 fault code:
Related to the fuel system: Rail pressure regulation function
Related to the steering system: Computer configuration
Airbag/pretensioners: Driver’s seat position sensor configuration
The above DF053 fault code descriptions, this fault code is on the received vehicle;
- When adjusting the fuel pressure,
- In the perception of the steering system ECU,
- In the driver’s seat position sensor configuration,
It shows that there may be problems.
DF053 Renault Fault Code Solution
First, it is necessary to start from the first possibility, that is, the possibility that the fuel pressure cannot be adjusted. Does the vehicle have problems such as not starting, jerky operation, misfiring or stopping, and throwing black smoke?
If there is, the fuel pressure cannot be adjusted because the fuel pressure regulator is broken or there is a problem with parts related to the standard rail system.
Common malfunctions in this regard are the clogging of the fuel filter. When the fuel filter is not changed on time, it is clogged, and not enough fuel can be sent to the fuel line, and the fuel pressure drops.
Injector malfunction or fuel pump malfunction may also be present. These problems are looked at one by one and the part that may be problematic is replaced.
The other part to check is the steering angle sensor. This sensor may deteriorate over time or the cable connections may loosen. If there is a problem with the steering in the vehicle, it should be checked that a lamp related to it is lit on the instrument panel.
Finally, the driver’s seat position sensor is checked.
If there is a problem with both the steering angle sensor, the driver’s seat position sensor, and the fuel pressure regulator in the vehicle, there are two logical explanations for this.
The common point of these three parts is that they are connected to the ECU and work with electricity from the battery.
Therefore, either the ECU (Onboard computer) also has a software error and cannot recognize some sensors for this reason. Or there are occasional short interruptions in the electricity coming from the battery, and these interruptions cause some sensors to stop working for a short time and error codes such as the DF053 fault code are received.
In this case, issues such as whether there are problems with the battery connections (corrosion, looseness, etc.) and whether the battery is properly charged should be checked.