ARMY TM 9-6115-670-14&P 5-82 5.27.  WIRING HARNESS, ENGINE P1. This task covers:     a. Inspect b. Test c. Repair d. Replace INITIAL SETUP Tools General Mechanic's Tool Kit (Item 1, Appendix B) Shop Equipment, Electrical Repair,   Semitrailer Mounted (Item 3, Appendix B) Equipment Conditions Master ON-OFF switch in APU control unit set to OFF. Air filter removed (para 4.45.). Materials/Parts Wiring Harness, Engine P1 Wire Strap, Tiedown, Elect. (Item 22, Appendix F) References: Figures FO-1 (SICPS/WIN-T) or FO-7 (JTACS) and FO-2 INSPECT Visually inspect for damaged wires or components. TEST a.  Refer to Table 5-2 and use a Multi-meter to test for continuity between connector P1 pins (5, Figure 5-20) and corresponding leads. b.  If no continuity is found in one or more positions, repair or replace control interconnect cable. c.  Using a Multi-meter, test for continuity between each pin position and connector shell of P1. d.  If continuity is found in one or more pin positions, repair or replace wiring harness. WARNING Ensure  that  APU  DC  power  supply  is  disconnected.   Failure to observe this warning could result in severe injury or DEATH to personnel. WARNING Ensure that the APU is turned off and completely de- energized.  Failure to observe this warning could result in severe injury or DEATH to personnel. NOTE Disconnect  test  leads  one  at  a  time,  observe  each location.  Reconnect after testing.