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GMC Truck
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1999
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S15/T15 Jimmy 4WD V6-4.3L VIN W
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Repair and Diagnosis
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Powertrain Management
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Relays and Modules - Powertrain Management
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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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Scan Tool Testing and Procedures
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Scan Tool Data Definitions
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Input 2
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Auto Headlamps Enable
Auto Headlamps Enable
Range: YES/NO
The output refers to the
BCM
commanded state of the auto headlamp feature.
YES displays when the
BCM
commands the auto headlamps to turn ON.
NO displays when the
BCM
commands the auto headlamps to turn OFF.