ECU ENGINE CONTROLLER Hyundai i20 3911103710 9001140421KF IMMO OFF Plug & Play
The offered ECU ENGINE CONTROLLER 3911103710 / 39111-03710 / 9001140421KF is designed for Hyundai petrol engines and prepared in IMMO OFF mode. This allows the vehicle to start without immobilizer authorization, eliminating the need for coding, PIN or adaptation.
This unit has been fully tested for communication and engine operation. After installation, it works immediately – Plug & Play. It is an ideal solution in case of immobilizer failure or starting authorization issues.
Specifications
- Hyundai part number: 3911103710 / 39111-03710
- Additional number: 9001140421KF
- Type: petrol engine ECU
- Version: IMMO OFF – Plug & Play
- Condition: used, tested, fully functional
- No programming required
Application – compatibility
This ECU is used in Hyundai vehicles equipped with small petrol engines. Always confirm compatibility using the part number.
- Hyundai i20 I – approx. 2008–2014
- Hyundai i10 – selected engine versions
- Kia Picanto – related engines (Hyundai/Kia platform)
Possible engine variants:
- 1.2 MPI
- 1.25 petrol (Kappa)
- Other compatible variants based on ECU number
Important: compatibility must be confirmed strictly by numbers 3911103710 / 39111-03710 / 9001140421KF.
Typical ECU failure symptoms
- no engine start despite working starter
- immobilizer blocking engine start
- no control of ignition or fuel injection
- engine stalling while driving
- no communication with diagnostic tools
- no signal to coils or injectors
Why IMMO OFF?
The IMMO OFF version removes the dependency on the immobilizer system. This allows the engine to start even if the immobilizer, key, antenna or related modules are faulty. It is a practical solution for vehicles with immobilizer-related failures.
Does ECU ENGINE CONTROLLER 3911103710 Hyundai i20 1.2 work without immobilizer?
Yes, the ECU ENGINE CONTROLLER 3911103710 in IMMO OFF version allows the engine to start without immobilizer authorization, regardless of the condition of the key, antenna or immobilizer system.
Is ECU 39111-03710 compatible with Hyundai i10 1.25 petrol?
Yes, provided that the ECU number matches exactly. Compatibility should always be confirmed by part number, not only by vehicle model.
What are the symptoms of a faulty ECU 9001140421KF?
Typical symptoms include no engine start, lack of ignition or injection control, and communication issues with diagnostic tools.
Does ECU 3911103710 require coding after installation in Hyundai i20?
No, the IMMO OFF Plug & Play version does not require coding, adaptation or diagnostic tools after installation.
Can ECU 39111-03710 be installed in Kia Picanto 1.2?
Yes, in some cases – provided that the ECU numbers and engine configuration are identical.
Does IMMO OFF cause dashboard warning lights?
In some vehicles, an immobilizer warning light may appear, but it does not affect the ability to start or drive the vehicle.
Is it possible to restore the immobilizer after IMMO OFF?
Yes, however it requires reprogramming the ECU and restoring the original immobilizer data.
