DF025 Renault Fault Code received in Renault vehicles may be related to the glow plug, but other factors may also cause this fault code.
Possible problems with the vehicle with the Renault fault code DF025:
- The preheating lamp on the instrument panel lights up for a long time when the ignition is turned on, or it is constantly lit, or it does not light up at all.
- Late operation of the car, problematic operation, non-operation at all.
What is the DF025 Renault Fault Code?
Related to the fuel system: Preheating unit (glow plug diagnostic connection)
Related to the in-car central control unit: Driver-side rear door external antenna circuit
Engine compartment connection unit: It is in the form of electrically assisted steering/airbag supply.
Accordingly, when the DF025 fault code is received;
The preheating unit may be faulty or the vehicle brain may not see the preheating unit.
- Driver-side rear door there may be no signal going from the external antenna circuit to the ECU.
- The ECU may not be able to see the electrically assisted steering system and airbag system, or it may be receiving an incorrect signal from here.
DF025 Renault fault code solution
First of all, it should be checked whether the glow plug is intact. Is the preheating lamp with an arc-shaped mark on the instrument panel constantly lit, or is it lit for a long time, or is it not lit at all?
Regarding the glow plug;
- Glow plug,
- Glow plug cables,
- Glow plug cable sockets,
- Glow plug insurance,
- Glow plug relay,
The problem may be related. First of all, the glow plug, socket and cables are checked by eye. Then it is necessary to disassemble it to check whether the glow plug is intact. This is a job that requires attention. It is necessary to completely de-energize the glow plug before making measurements.
It is understood whether the glow plug is intact when the resistance values are measured with a multimeter.
The cables of the glow plug wear out and come into contact with other cables, the socket loosens, there may be non-contact problems due to contamination depending on the time, there may be a short circuit or leakage, these are checked.
If the glow plug, cables and socket are intact, the fuse and relay are checked.
Regarding the DF025 Renault fault code, you can also;
- Whether there is a problem with the electric steering system,
- Whether there is a problem with the driver-side rear door external antenna circuit,
- Whether there is a problem with the airbag system,
Matters are also checked.
After the above operations are performed, the DF025 fault code is deleted and it is checked whether the same fault code will be generated again.
The presence of problems such as leakage in the electrical installation of the vehicle, problematic battery connections should also be reviewed.