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How to Perform Trouble Diagnoses for Quick WORK FLOW CHECK IN F Reference item LISTEN TO CUSTOMER COMPLAINT AND CON- Can be Cannot be EDUCATE CUSTOMER ON LISTEN TO CUSTOMER COMPLAINTS AND F Symptom Chart INVESTIGATE ITEMS YOU SHOULD CARRY F Symptom Chart E ELIMINATE GOOD SYSTEM(S)/PART(S). F Preliminary Check CHECK MAIN POWER SUPPLY AND GROUND F Main Power Supply and Ground Circuit Diagnostic E ELIMINATE GOOD PART(S)/HARNESS(ES)/ F Harness Layout for A/C System Malfunctioning Malfunctioning INSPECT EACH F Electrical Components Inspection REPAIR. H REPAIR/REPLACE. NG FINAL CHECK OK CHECK OUT H H H H H H H H H H H H DIAGNOSES — Overall System HA-28 |