Peugeot Citroen Immobiliser Bypass
When the engine ECU is lost, unreadable, or replaced with a donor unit, modern Peugeot and Citroën vehicles can refuse to start because of immobiliser protection. Dealer fixes are slow and expensive. At Pelican Diagnostics we safely disable or reconfigure immobiliser locks inside supported ECUs so legitimately owned vehicles are driveable again while you arrange a permanent solution.
We use manufacturer-grade tools and tested procedures — not crude hacks — and we document the work. This service is intended for lawful owners, fleet operators, and authorised workshops.
Which ECUs we support
We commonly work on the following engine ECU platforms used across Peugeot & Citroën:
Bosch, Continental, Delphi, Denso, Johnson Controls, Magneti Marelli, Sagem, Siemens, Valeo, Visteon.
If you are unsure which ECU you have, send the ECU part number or a clear photo of the label and we’ll confirm compatibility before you post.
What the service does — clear and technical
We will:
Disable or reset immobiliser protection inside the engine ECU so a replacement/donor ECU will start the vehicle (owner/workshop authorised requests only).
Preserve or transfer key data where possible so existing keys remain functional.
Test the ECU and return it ready to refit (plug & start in most cases).
We do not:
Supply stolen keys, parts, or donor ECUs.
Assist unlawful use. We may request proof of ownership.
Guarantee success if the ECU is physically destroyed — send photos for assessment first.
Typical scenarios we solve
Original ECU lost, corrupted or irreparably damaged.
Donor ECU fitted but the car is immobilised.
ECU corruption after crash repair or battery disconnect.
Workshop needs the vehicle back on the road quickly while sourcing matching parts.
How to order — exact steps
Fill the form on the product page with Vehicle Reg / VIN / ECU part number (attach photos if unsure).
Pay for the order online or choose pay in person.
Post the ECU to:
Pelican Diagnostics
Padley Farm
The Drove
Sleaford
NG34 8JQ
Include your order number, name, mobile number and return address inside the parcel. Label parcel clearly.
If we receive your ECU before 1pm we typically complete the work the same day and post back via next-day tracked delivery; otherwise within 24 hours. Walk-in “while you wait” service is available in Sleaford by appointment.
Safety, legality & warranty
We perform immobiliser bypass only for lawful owners or authorised workshops. By sending the ECU you confirm you have authority to request this work.
Immobiliser changes can affect manufacturer warranty and insurer requirements — check before proceeding.
FAQs
Q1: What is a Peugeot/Citroën immobiliser bypass?
A1: It’s a professional service that disables or resets the immobiliser protection inside an engine ECU so a legitimately owned Peugeot or Citroën can be started when the original ECU is lost, damaged or cannot be cloned. We use manufacturer-grade tools and safe procedures.
Q2: Is Peugeot/Citroën immobiliser bypass legal?
A2: Yes — when performed for legitimate reasons (owner request, authorised workshop or diagnostic work). We may ask for proof of ownership and will refuse work for unlawful purposes.
Q3: Which ECU brands do you support for Peugeot & Citroën?
A3: We support Bosch, Continental, Delphi, Denso, Johnson Controls, Magneti Marelli, Sagem, Siemens, Valeo, and Visteon. Send part numbers or photos and we’ll confirm compatibility.
Q4: How long does the immobiliser bypass take?
A4: If received before 1pm we usually complete the work the same day and return by next-day tracked delivery. Otherwise turnaround is typically within 24 hours.
Q5: Will my existing keys still work after the bypass?
A5: In many cases yes. Where possible we preserve or transfer key data so existing keys remain functional. If a full bypass is required we’ll explain the implications and options.
Q6: Do I need to send the immobox or keys too?
A6: Usually the ECU alone is sufficient, but some vehicle/ECU types require the immobox or keys. After you submit the part number or photos we’ll confirm exactly what to send.
Q7: My ECU is water-damaged — can you still bypass it?
A7: Severe physical damage or broken pins can prevent a standard bypass. Send clear photos first — we’ll assess and quote for repair or cloning options if possible.
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