Need To Place A Check Mark In A Box Based On Calculated Fields

I 'm still trying to make this work and feel I'm close but still not there.

I can blank out the PASS field if a check mark is in the FAIL field but if I try to then add the script to blank out the FAIL field, it all stops working.

//PASS FIELD//

var VarianceRow1_2 = Number(this.getField("VarianceRow1_2").value);

if (VarianceRow1_2>-1.0 && VarianceRow1_2<1.0) event.value = resetForm(["FAILRow1_2"]);

if (VarianceRow1_2>=-1.0 && VarianceRow1_2<=1.0) event.value = "✔";

//FAIL FIELD//

var VarianceRow1_2 = Number(this.getField("VarianceRow1_2").value);

if (VarianceRow1_2<-1.0 || VarianceRow1_2>1.0) event.value = resetForm(["PASSRow1_2"]);

if (VarianceRow1_2<-1.0 || VarianceRow1_2>1.0) event.value = "✔";