Symptom Chart

SYMPTOM	POSSIBLE CAUSES	ACTION
Scratches	Debris trapped under a wiper blade Foreign object damage Fouling by trim	GO to Pinpoint Test A .
Chips	Foreign object damage	GO to Pinpoint Test B .
Cracks	Foreign object damage Impact damage during assembly	GO to Pinpoint Test C .
Delamination	Manufacturing defect	GO to Pinpoint Test D .