Grand Cherokee 2WD V8-4.7L VIN J (2004)
Test 14 - 15
SYMPTOM
REAR WINDOW DEFOGGER GRID INOPERATIVE
POSSIBLE CAUSES
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Rear defogger relay DTC's
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Intermittent condition
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Rear window defogger ground CKT
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Rear window defogger grid open
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Rear window defogger relay output open
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Rear window defogger relay
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Rear window defogger relay output shorted to ground
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Replace faulty fuse
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Fused B(+) CKT open at relay
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Substitute relay
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Junction block
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Rear window defogger switch sense CKT open
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Rear window defogger switch sense CKT shorted to ground
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Rear window defogger switch sense CKT shorted to voltage
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Automatic zone control module
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Body control module
Rear Window Defogger Switch Indicator Inoperative