TM 9-2320-361-20 ELECTRICAL TROUBLESHOOTING SYMPTOM INDEX (Contd) TROUBLESHOOTING MALFUNCTION NO. MALFUNCTION PROCEDURE PAGE 29. 30. 31. 32. 34. 33. 35. 36. 37. 38. 39. 40. 41. 42. 43. INDICATORS, GAGES, AND WARNING SYSTEM All gages inoperative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine temperature gage inoperative . . . . . . . . . . . . . . . . . . . . . . . . Fuel gage inoperative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Oil pressure gage inoperative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Generator gage inoperative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . In-tank fuel pump inoperative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Front wheel drive indicator light inoperative . . . . . . . . . . . . . . . . . . . Low air pressure warning system inoperative. . . . . . . . . . . . . . . . . . . Low air pressure warning system does not come on below 60 psi and does not go off above 66 psi. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Horn does not operate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . HEATING SYSTEMS Engine manifold heater does not work. . . . . . . . . . . . . . . . . . . . . . . . Hot water personnel heater does not operate or does not operate in low position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Personnel fuel burning heater inoperative . . . . . . . . . . . . . . . . . . . . . Heater control box light inoperative, but heater operative . . . . . . . . . . TRAILER CONNECTION SYSTEM One or more trailer lights inoperative . . . . . . . . . . . . . . . . . . . . . . . . BATTERY SYSTEM 2-76 2-121 2-122 2-124 2-126 2-128 2-129 2-131 2-132 2-133 2-134 2-136 2-142 2-144 2-146 2-146