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Message: <blockquote data-quote="ALBundy" data-source="post: 214220" data-attributes="member: 15">You are talking retrofitting an EWS system into your current ride which I presumed is non-ews.  EWS equipped cars use different ECUs and hence different wiring loom, different key (with chip) and also an additional EWS module below the dashboard (cigarette box size) and etc. To retrofit this system into your ride, you need all the above and also the key (with the chip embedded inside) which have to be matching to the ECU. Otherwise it wouldnt start <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" />  What happens is when you insert the key, the chip will emit a signal which is then pick up by an in-built trasmitter and the signal is then send to the EWS module of which the signal is then change into a secret code of which only the ECU can decipher. IF the "code" is incorrect, the car wouldnt start.</blockquote>