Siemens SIM22 Immo Off: Ford, Mazda

Manufacturers: Ford, Mazda

Brand: Siemens

Model: SIM22

Function: Immo off

Emulator: No

Siemens SIM22 Immo Off – Ford & Mazda Online ECU Solution

The Siemens SIM22 engine control unit (ECU) is used in selected petrol-powered Ford and Mazda vehicles, including the Ford Fiesta Mk5, Ford Fusion, and first-generation Mazda 2. Its immobilizer system manages engine-start authorization through communication with the vehicle’s security components.
When an immobilizer communication fault prevents engine starting, a Siemens SIM22 immo off solution may be considered for authorized ECU repair applications. Compatibility must be verified using the exact ECU hardware and software references.

Siemens SIM22 Compatible Vehicles

The following vehicle configurations are included in the supplied compatibility list. ECU identification is required to confirm whether the Siemens SIM22 immo off service is supported.

• Ford Fiesta (Mk5)
  • 1.25 16V – 70 CV (51 kW) / 75 CV (55 kW)
  • 1.3 8V – 60 CV (44 kW) / 70 CV (51 kW)
  • 1.4 16V – 80 CV (59 kW)
  • 1.6 16V – 100 / 101 CV (74 kW)
• Ford Fusion (1st gen)
  • 1.25 16V – 75 CV (55 kW)
  • 1.4 16V – 80 CV (59 kW)
  • 1.6 16V – 100 / 101 CV (74 kW)
• Mazda 2 (1st gen)
  • 1.25 16V – 75 CV (55 kW)
  • 1.4 16V – 80 CV (59 kW)
  • 1.6 16V – 100 CV (74 kW)

Vehicle specifications alone do not guarantee compatibility. Always confirm the Siemens SIM22 ECU identification and software version before submitting a file.

CK Decode Online Siemens SIM22 Immo Off Service

CK Decode provides an online immo off service for automotive technicians working with supported Siemens SIM22 ECUs. The platform enables compatible ECU files to be submitted for immobilizer-related processing without requiring local file-modification software.

How to Perform Siemens SIM22 Immo Off with CK Decode

Need to disable the immobilizer on your SIEMENS SIM22? Complete the entire process in just a few minutes by following the instructions below:

1. Download: Grab your copy of CKDecode using this link.
2. Menu Selection: Go to the Functions Tab and choose Manufacturer – SIEMENS – SIM22 – Immo off.
3. Read & Upload: Extract the Flash file with your tool and upload it to the platform.
4. Convert: Press the Process button to automatically apply the Immo Off solution.
5. Reprogram: Write the output file generated by CKDecode directly into your control unit.