When the key is inserted into the ignition it should stop. If it doesn't read the chip in the key the light will come on solid. You can verify this by wrapping tin foil around the head of your key. With the tin foil wrapped around your key and the light on solid the immobilizer prevents the engine from turning over. How to bypass an immobiliser on a citroen berlingo van. Try using the old key and place it near the barrel then turn the new key. These keys have RFID that the immoblizer can detect. Once key is changed, it will still look for original key to disable immo. Aug 08, 2014 • 2006 Citroen Berlingo 1.9d. Nov 16, 2008. #26. bypassing the immobilizer is a complete valid question. it is known for triggering for random reasons (bad grounds, bad battery contacts, shorts, because it feels like it, because the moon is half full.). MANY people disable it because of all the trouble it causes. How To Remove Engine Immobilizer. You may disable engine immobilizer systems in various ways, but the most common approach is to reprogram an EEPROM chip on the ECU. This requires the use of some special tools. Consult your vehicle's manual before attempting to remove the engine immobilizer. Banbury, UK. TDI. AFN Passat Wagon. Apr 3, 2012. #1. Hi all, I have a spare ECU for my AFN TDI Passat B5, which has been socketed. The only thing left to do is delete the immobilser code from it, to allow the engine to start when its fitted. It sounds like I can simply re-programme it through VCDS as per here, to delete the immobiliser? To do this, turn on the ignition, use your centralized button to enter the digits, several quick presses (example: 2 for digit 2) then a stop of one and a half seconds to confirm the digit and resume, repeat the process until you have entered the whole code. This should let you start your Mercury Grand Marquis without having to remove the onc4RL.

how to disable immobilizer