Operation CHARM
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Oldsmobile
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1991
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Cutlass Supreme FWD L4-138 2.3L DOHC QUAD 4
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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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Reading and Clearing Diagnostic Trouble Codes
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Clearing Trouble Codes
Clearing Trouble Codes
To clear codes from the Heater And A/C Control Assembly, remove ELEC Fuse.