Component Tests and General Diagnostics

PERFORM BEFORE BEGINNING SYSTEM DIAGNOSIS
1. Check DEF Fuse.
2. Check that G203 and G300(4-Door)/G402(2-Door) are clean and tight.
3. Check that the Rear Defogger Grid is continuous and free from damage.
4. Check for an open or shorted filament in the inoperative lamp.
5. Before component replacement, check for poor connections at related component and in-line harness connector terminal connections.