A4 Verify Concern Is Resolved

- Reassemble all components.

- Clear all diagnostic trouble codes with the New Generation Star (NGS) tester.

- Pull diagnostic trouble codes with the New Generation Star (NGS) tester.

- Is System Pass obtained?

YES -- Stop. Concern is repaired.

NO -- Code C1220 is reset and Step A2 is complete. Intermittent condition may also be present. Go to A1 to address the possibility of a second concern.

NO -- But some other diagnostic trouble code is set. Go to the appropriate pinpoint test.