TM 1-1520-238-T-7 10–188.4 Change 5 10–66D. PILOT AND CPG GREEN FUEL XFR INDICATORS ARE LIGHTED WITH PILOT 10–66D FUEL TRANS SWITCH SET TO OFF (ADB) Tools: Nomenclature Part Number Tool Kit, Electrical SC518099CLA06 Repairer’s Multimeter, Digital AN/PSM-45 Personnel Required: 68X Armament/Electrical Systems Repairer One person to assist References: TM 1-1520-238-23 WARNING Turn off power before detaching or attaching wires and connectors. High current 28 VDC or 115 VAC is present. Failure to do so could result in death or serious injury. 1. Detach P179. Check for short between P18–93 and ground. Does short exist? YES Repair shorted wire between: P18–93 and P914–A11, J914–A11 and P179–A10. Go to paragraph 10–47. NO Go to step 2. 2. Check for short between P18–102 and ground. Does short exist? YES Go to step 3. NO Go to step 4. 3. Detach P19. Check for short between P18–102 and ground. Does short exist? YES Repair shorted wire. Go to paragraph 10–47. NO Replace CPG caution/warning panel (TM 1-1520-238-23). 4. Check for short between (A106) J1–102 and ground. Does short exist? YES Replace pilot caution/warning panel (TM 1-1520-238-23). NO Go to step 5. 5. Check for short between XK5–9–A1 and ground. Does short exist? YES Go to step 6. NO Replace relay K5–9 (TM 1-1520-238-23). 6. Detach P429. Check for short between XK5–9–A1 and ground. Does short exist? YES Repair shorted wire. Go to paragraph 10–47. NO Go to step 7. 7. Detach P174. Check for short between P429–A15 and ground. Does short exist? YES Repair shorted wire. Go to paragraph 10–47. NO Replace pilot FUEL panel (TM 1-1520-238-23). END OF TASK