Undefined property in array of arrays

I am working on an array of array, and I want to test each first value but all what I get is Uncaught TypeError: Cannot read property '0' of undefined. Help please!

 function getManualDesactivation(data){

var tab=[];
var l=data.length ; 
var listeService= getCategorie(data);
var resultat=[];

for(var i=0; i<l;i++){
        if (data[i][1] == "DESACTIVATION") {
            var subtab=[];
            subtab.push(data[i][0]);
            subtab.push(data[i][2]);
        tab.push(subtab);


        }       
}

if (tab.length > 1) {
    var j = 0;
    for (var i = 0; i < listeService.length; i++) {

        if (listeService[i] == tab[j][0]) {<---- here is the exception
            resultat.push(tab[j][1]);

            j++;
        } else {

            resultat.push(0);
            j++;
        }

    }
}