Rear Window Defogger

Test 1 - 2:

Test 3 - 8:

Test 9 - 12:

Test 13 - 14:

SYMPTOM
REAR WINDOW DEFOGGER GRID INOPERATIVE

POSSIBLE CAUSES
- Rear window defogger ground CKT
- Rear window defogger grid open
- Rear window defogger relay output open
- Rear window defogger relay
- Rear window defogger relay output shorted to ground
- Fuse #2 open
- Fused B(+) CKT open
- Substitute relay
- Fuse block
- Intermittent condition
- Rear window defogger switch sense CKT open
- Rear window defogger switch sense CKT shorted to ground
- Rear window defogger switch sense CKT shorted to voltage
- Rear window defogger switch
- Instrument cluster