Operation CHARM
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GMC Truck
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1988
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S15/T15 2WD P/U V6-173 2.8L
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Repair and Diagnosis
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Heating and Air Conditioning
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Testing and Inspection
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Component Tests and General Diagnostics
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Troubleshooting Hints
Troubleshooting Hints
NOTE:
Go to System Check for a guide to normal operation.
System Check - Without A/C
^
If the
blower motor
does not operate at all, check the HTR-A/C Fuse.
^
If the
blower motor
does not turn off, install a new
blower switch
.