Front left burner did not spark when knob was turned. However, it would spark when other knobs were turned. This lead me to believe there was a malfunction in the burner switch... not the burner ignitor itself. Plus all the other burner ignitors worked so was betting it was not the ignitor module. Ordered the ignitor wiring harness. Installed it using the video as a guide! Plugged stove in turned gas on and it lit right up! Thanks AppliancePartsPros.com