more 406 key stress

[bradleyor]

Hi
Me again. I haven't got any further, bought a copy of peugeot service box and I'm just as perplexed. Tried to have a good look at wiring system and it looks like the program has been designed by and for frenchmen. I cant make head nor tail of it. Looking at the immobiliser part the b8220 key sensor thing next to diagnostic socket ( whose function I just don't understand as it is just a pair of prongs which are just shorting the wires ). wires are not color coded just purpose coded (command signal and clock signal)... seems the same elswhere. The system has an old and new version of 406... and I'm sure mines supposed to be newer but it doesn't seem to tally. I am trying to check continuity on the four wires going from the sensor to the ecu, at least from the diagrams thats where they appear to be going, I got full continuity on two of them but the light brown one is showing mucho resistance and the red one I can't match to any on the ecu harness. Am I checking the wrong place should I be checking under the dash.. I followed the wires and they (seem to go to the ecu harness ast the front. The good news is the wires to the knock sensor checked O.K. I stretched them when I dropped the g/box with them still attached but I got good reading back to the ecu.
Mike
If I have to strip the whole chuffing harness ....... I will..not..it'll go to scrappy first
I might get another land rover instead