trouble code audi 1002.5 TDI

hello I search the trouble code for audi 100 TDI of 1993,it is not a OBD it is possible read without system of diagnostic
Tank fo your help
snipped-for-privacy@wanadoo.fr

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goto sjm tecknic, you use a 12v led and two wires to access the codes , btw vag com does not work on this car , despite being advertised with ross tech , good luck

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