Tetsu0san Posted June 1, 2018 Share Posted June 1, 2018 Hi all I've just bought a Discovery 1 ES 300Tdi and it came with 2 fobs. One works but the other doesn't and it appears the ECU no longer (if it even did) knows about this other key fob. I've searched around and I found what appears to be a guide for reprogramming a fob, but I wanted to check here to see if this is right. The instructions are: This is the procedure and it'll need two of you to carry it out: Start with the ignition off, doors unlocked and bonnet alarm switch depressed.NOTE: Steps 2- 8 must be carried out in 8 seconds Switch ignition on Switch ignition off Lock doors - push the button down on the drivers door. Unlock doors - pull button up on drivers door. Release bonnet switch. Switch ignition ON Switch ignition OFF If the alarm is correctly accessed, the horn will sound and the LED on the dash will light. It's now possible to program two handsets of correct frequency to vehicle's alarm ECU.This must be carried out within two minutes otherwise you'll have to start again. Press and hold down the button on first handset until dash LED flashes. Repeat #10 for the second fob. The LED on the dash will extinguish if both handsets have been initialised correctly. Does this look right? If it is, what a complete faff!! Cheers Quote Link to comment Share on other sites More sharing options...
Ally V8 Posted June 2, 2018 Share Posted June 2, 2018 Looks right,but only on 1994/5 model year with the single button fobs, later two button fobs need Testbook or similar to code fobs. Quote Link to comment Share on other sites More sharing options...
Tetsu0san Posted June 2, 2018 Author Share Posted June 2, 2018 Ah, that's a bit cack then, as I have the 2 button jobbie. Quote Link to comment Share on other sites More sharing options...
Ally V8 Posted June 2, 2018 Share Posted June 2, 2018 Oh dear, you will need Testbook then... And don't forget if its an EDC equipped auto it will need to have the EDC learn process done aswell - After the fob learn. Quote Link to comment Share on other sites More sharing options...
Tetsu0san Posted June 4, 2018 Author Share Posted June 4, 2018 Damn. I need to find a fellow Landy owner with the skills and equipment then! Quote Link to comment Share on other sites More sharing options...
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