I dont think you will need a code to use jpdiag on the S4R. I didnt need one for the S4, just plug it in and it conects. You can read any error codes in the ecu which you will find useful and also you can reset tps and check various functions are working.
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Roast Beef Monster!
Termignoni and Bucci - Italian for pipe and slippers!
S4 Fogarty, S4R 07T, 748, Series 1 Mirage
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