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Home >> Mercury >> 1993 >> Grand Marquis V8-281 4.6L SOHC >> Repair and Diagnosis >> Heating and Air Conditioning >> Relays and Modules - HVAC >> Control Module HVAC >> Testing and Inspection >> Pinpoint Test C: High Blower Always on In All Switch Positions

Pinpoint Test C: High Blower Always on In All Switch Positions

Start engine, set control to MAX A/C, set blower switch to MED. If blower remains in high speeds proceed as follows:


II Symptom - High Blower Always On In All Blower Positions:





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