TM 5-3805-262-203-32. CHARGING SYSTEM TROUBLESHOOTING (CONT)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION1. ALTERNATOR NOT CHARGING BATTERIES (Cont).Step 12. (Cont).At rear windshield defogger fans, put switches first in high posi-tion then low position and record VTM display. Return switches too f f p o s i t i o n.SWITCH POSITIONCURRENT READING(VTM DISPLAY)HIGH(TBD)LOW(TBD )VTM display should indicate current readings specified above.Turn ignition key switch to off position.a. If current readings are okay, check engine switches and sensors.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.3-265
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