DF037 Renault Fault Code

It is the immobilizer system in the vehicles that allows the vehicles that are worth a fortune to be parked in public areas such as the street, the street without worrying about safety.

When the immobilizer system fails, the fault code generated by the ECU in Renault vehicles is DF037.

Possible problems with the vehicle with the Renault fault code DF037:

• The vehicle does not work
• Their doors are not opened or locked
• The immobilizer key does not take effect until it is close to the vehicle

What is the DF037 Renault Fault Code?

It is in the form of an ”immobilizer”. But this fault code does not always mean that there is an immobilizer malfunction. There may be other problems that may interfere with the operation of my site.

The immobilizer system is found in almost all new vehicles and is a system used for security purposes.

In the past, the vehicle could easily operate by forcing the vehicle door into the vehicle and then starting the vehicle with a straight ignition.

If there is no immobilizer key in the immobilizer system, it is not possible to start the vehicle by making a straight contact, even if the vehicle door is open.

The thief who breaks into the vehicle can only steal them if there are materials inside, or he can steal things such as tape recorders, he cannot steal the vehicle and take it away.

Vehicles with immobilizers are usually stolen by thieves entering the house by stealing the immobilizer key from the house.

What makes the immobilizer system so secure is the unique encryption system between the immobil Decker key and the immobilizer module mounted on the vehicle.

When you press the button on the immobilizer key, the password on the immobilizer key is compared with the password on the immobilizer module in the vehicle, and if there is verification, the vehicle works, otherwise even the owner of the vehicle cannot start it.

In addition to these benefits, the immobilizer system sometimes malfunctions for simple reasons, and sometimes immobilizer malfunctions can be expensive.

When the fault code DF037 is received, the engine fault lamp and the immobilizer sign will also light up on the instrument panel.

Causes of the DF025 Fault Code:

• Malfunction of the immobilizer switch
• Weakening of the battery of the immobilizer switch
• Distortion of the antenna of the immobilizer switch
• Malfunction of the immobilizer module
• Immobilizer module electrical circuit failure
• Discarding of the immobilizer module fuse
• Battery weakening, no electricity coming from the battery
• There are some mistakes that car owners commonly make in this regard. Choosing to throw the immobilizer key to put it somewhere, putting it in wet places, dropping it, sitting on it are among the main reasons for the failure of the immobilizer key.
• Water entering the vehicle’s brain or the part where the immobilizer module is located by careless cleaning of the vehicle is another common cause of malfunction.

DF037 Renault Fault Code Solution

• First of all, it is necessary to determine whether the malfunction is caused by the immobilizer switch or the immobilizer module.
• If the car is running with the spare key, it means that there is a problem with the immobilizer key. It is checked whether the battery of the immobilizer switch has weakened or the antenna has been damaged.
• Noticeable physical damage to the immobilizer key indicates that the key may have been damaged due to reasons such as impact, fall.
• If the immobilizer switch is intact, the fuse and electrical circuits of the immobilizer module, connection cables are checked.
• If there is no problem here, the battery connections are checked.
• Finally, the immobilizer module is checked for malfunction.