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 .