Operation CHARM
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GMC Truck
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1992
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S15/T15 2WD P/U V6-173 2.8L
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Repair and Diagnosis
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Lighting and Horns
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Headlamp
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Testing and Inspection
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Without Daytime Running Lamps (DRL)
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Troubleshooting Hints
Troubleshooting Hints
1.
If one side of front
marker lamps
is operating, check the condition of the bulb(s) that are not operating. If bulb(s) are good, locate and repair open in BRN (9) wire and BLK (150) wire.