TM 5-3805-262-203-32. CHARGING SYSTEM TROUBLESHOOTING (CONT)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION1. ALTERNATOR NOT CHARGING BATTERIES (Cont).Step 11. Dial 90 into VTM TEST SELECT.Press and hold TEST button until CAL appears on VTM display thenrelease TEST button.Wait for offset value to appear on display. Offset value should bebetween -225 to +225. If it is not, STE/ICE is defective (refer toTM 9-4910-571-12&P).Press and release TEST button.Put vehicle lights switch main switch and auxiliary switch in OFF3-264p o s i t i o n s .Turn ignition key switch to on position (first clockwise position.At console/cab switch panel, turn on switches listed below, recordVTM display, then return switch to its off position.SWITCH/POSITIONCURRENT READING( VTM DISPLAY )DEFROSTER/ON(TBD)HEATER/LOW(TBD)HEATER/HIGH(TBD)FRONT WIPER/HIGH(TBD)FRONT WIPER/LOW(TBD )VTM display should indicate current readings specified above.Turn ignition key switch to off position.a. If current readings are okay, go to step 12 below.b. If current readings are higher, refer to wiring diagram, pagesFO-7 and FO-9, and locate component or wire in circuit drawingtoo much current.Step 12. Dial 90 into VTM TEST SELECT.Press and hold TEST button until CAL appears on VTM display thenrelease TEST button.Wait for offset value to appear on display. Offset value should bebetween -225 to +225. If it is not, STE/ICE is defective (refer toTM 9-4910-571-12&P).Press and release TEST button.Put vehicle lights switch main switch and auxiliary switch in OFFp o s i t i o n s.Turn ignition key switch to on position (first clockwise position).
Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business
