TM 10-3930-659-20 Table 4-2.  Electrical Troubleshooting (Con't). MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION Step 3.  Inspect domelight for burned out lamp or damaged domelight. Replace burned out lamp (see paragraph 6-20). Replace damaged domelight (see paragraph 6-20). Step 4.  Check domelight switch for continuity (see paragraph 2-27). Replace damaged domelight (see paragraph 6-20). Step 5.  Check wiring harnesses within domelight and worklight circuit for continuity (see paragraphs 2-27 and 6-73). Repair or replace damaged connectors or wires (see paragraph 2-28). 22.  ADJUSTABLE FLOODLIGHT OR REAR WORKLIGHTS ARE NOT WORKING. Step 1.  Check adjustable floodlight fuse or rear worklight fuse for continuity (see paragraph 2-27). If adjustable floodlight fuse is damaged, replace 10 amp fuse (see paragraph 6-13). If rear worklight fuse Is damaged, replace 15 amp fuse (see paragraph 6-13). Step 2.  Check accessory relay within load center panel circuit of load center wiring harness for continuity (see paragraphs 2-27 and 6-73). Replace damaged accessory relay (see paragraph 6-12). Step 3.  Inspect adjustable floodlight or rear worklights for burned out lamps or damage. Replace burned out lamps (see paragraph 6-24 or 6-27). Replace damaged adjustable floodlight (see paragraph 6-24) or damaged rear worklights (see paragraph 6- 27). Step 4.  Check adjustable floodlight switch or rear worklight switch for continuity (see paragraph 2-27) Replace damaged adjustable floodlight switch or damaged rear worklight switch (see paragraph 6-11). Step 5.  Check wiring harnesses within worklight circuits for continuity (see paragraphs 2-27 and 6-73). Repair or replace damaged connectors or wires (see paragraph 2-28). 23.  HEATER FAN IS NOT WORKING. Step 1.  Check heater fan fuse for continuity (see paragraph 2-27). Replace damaged 15 amp fuse (see paragraph 6-13). 4-34