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Jeep
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1999
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Grand Cherokee 4WD L6-4.0L VIN S
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Repair and Diagnosis
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Powertrain Management
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Computers and Control Systems
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Relays and Modules - Computers and Control Systems
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Body Control Module
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Testing and Inspection
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Symptom Related Diagnostic Procedures
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Interior Lighting System
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I/P Courtesy Lamps INOP
I/P Courtesy Lamps INOP
SYMPTOM
I/P COURTESY LAMPS INOP
POSSIBLE CAUSES
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Bulbs defective
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Open fused B(+)
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Courtesy lamp control circuit open
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BCM
defective courtesy lamp control