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RIGHT FRONT HEADLIGHT LOW BEAM WILL NOT LIGHT.
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TM-5-2420-224-20-1 Tractor Wheeled 4x4 DED Small Emplacement Excavator (SEE) and High Mobility Material Handler (HMMH) Manual
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RIGHT FRONT HEADLIGHT HIGH BEAM WILL NOT LIGHT.
TM 5-2420-224-20-1
Table 3-5. Troubleshooting (Cont)
Malfunction
Test or Inspection
Corrective Action
ELECTRICAL SYSTEM (CONT)
Step 1. Remove three screws (1), three washers (2), and guard (3).
Step 2. Remove screw (4) and ring (5).
Step 3. Loosen three screws (6) and remove ring (7).
Step 4. Remove lamp (8) from socket (9).
Step 5. Check for +24 VDC between wire 41LR1 (10) and ground at socket (9).
+24 VDC is present, replace lamp.
If
+24 VDC is not present, go to step 6.
If
Step 6. Check for +24 VDC between wire 41LR1 (10) and ground at auxiliary light
control switch (11).
If +24 VDC is present, repair wiring 41LR1 between auxiliary
light control switch and socket.
If +24 VDC is not present, go to step 7.
Step 7. Check for +24 VDC between wire 41LR (12) and ground at auxiliary light
control switch (11).
If +24 VDC is present, replace auxiliary light control switch
(page 4-146).
If +24 VDC is not present, go to step 8.
Step 8. Disconnect connector G (13) and check for +24 VDC between wire 41LR
(12) and ground.
If +24 VDC is present, repair wiring 41LR between connector G
and auxiliary light control switch.
If +24 VDC is not present, reconnect connector G and go to
step 9.
Step 9. Check for +24 VDC between wire 41LR (12) and ground at fuse box 2 (14).
If +24 VDC is present, repair wiring 41LR between fuse box 2
and connector G.
If +24 VDC is not present, go to step 10.
Step 10. Check for +24 VDC between wire 41L1 (15) and ground at fuse box 2 (14).
If +24 VDC is present, replace fuse.
If +24 VDC is not present, repair wiring 41L1.
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