Operation CHARM
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GMC Truck
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1993
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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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Fog/Driving Lamp
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Testing and Inspection
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With Daytime Running Lights (Canadian Only)
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Preliminary Checks
Preliminary Checks
1.
Check condition of
HORN
/DM and INSTR LPS Fuse(s). If Fuse(s) is blown locate and repair source of overload Replace fuse.
2.
If fuse is not blown, proceed with diagnostics.