TM 10-3930-659-20 Table 4-2.  Electrical Troubleshooting (Con't). MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION Step 3.  Check transmission oil temperature gage for continuity (see paragraph 2-27). Replace damaged transmission oil temperature gage (see paragraph 6-7). Step 4.  Check accessory relay within gages, indicators, horn, and engine hourmeter circuit of right panel wiring harness for voltage and continuity (see paragraphs 2-27 and 6-73). Replace damaged accessory relay (see paragraph 6-12). Step 5.  Check transmission oil temperature sender and transmission oil temperature gage wiring harness within gages, indicators, horn, and engine hourmeter circuit of right panel wiring harness for continuity (see paragraphs 2-27 and 6-73). Repair or replace damaged wiring harness connectors or wires (see paragraph 2-28). 16.  ENGINE HOURMETER IS NOT WORKING. Step 1.  Check accessory relay within gages, indicators, horn, and engine hourmeter circuit of right panel wiring harness for voltage and continuity (see paragraphs 2-27 and 6-73). Replace damaged accessory relay (see paragraph 6-12). Step 2.  Check for shorted ignition switch (see paragraph 2-27). Replace damaged ignition switch (see paragraph 6-10). Replace damaged engine hourmeter (see paragraph 6-8). Step 3.  Check engine hourmeter wiring harness within gages, indicators, horn, and engine hourmeter circuit of right panel wiring harness for continuity (see paragraphs 2-27 and 6-73). Repair or replace damaged wiring harness connectors or wires (see paragraph 2-28). 17.  TURN SIGNALS OR EMERGENCY FLASHERS ARE NOT WORKING. Step 1.  Check turn signal/emergency flashers fuse for continuity (see paragraph 2-27). Replace damaged 10 amp fuse (see paragraph 6-13). Step 2.  Remove flasher (see paragraph 6-12) and test for 24 v at socket (see paragraph 2-27). Replace damaged flasher (see paragraph 6-12). Step 3.  Check accessory relay within brake light and turn signal/emergency flashers circuit of load center wiring harness for voltage and continuity (see paragraphs 2-27 and 6-73). Replace accessory relay (see paragraph 6-12). 4-31