ELECTRICAL SYSTEM (CONT) -680640222

TM 5-2420-224-20-1

Table 3-5. Troubleshooting (Cont)

Malfunction

Test or Inspection

Corrective Action

ELECTRICAL SYSTEM (CONT)

Step 1. Check for +24 VDC between wire 42LR (1) and ground at auxiliary headlight

connector (2).

If +24 VDC is not present, go to step 4.

If +24 VDC is present, go to step 2.

Step 2. Remove two bolts (3), lamp guard (4), mount (5), and lamp (6).

Step 3. Check for +24 VDC between wire 42LR (1) and ground at socket (7).

If +24 VDC is present, replace lamp.

If +24 VDC is not present, repair wiring 42LR between socket

and auxiliary headlight connector.

Step 4. Check for +24 VDC between wire 42LR (1) and ground at auxiliary light

control switch (8).

If +24 VDC is present, repair wiring 42LR between auxiliary

headlight connector and auxiliary light control switch.

If +24 VDC is not present, go to step 5.

Step 5. Check for +24 VDC between wire 41LR (9) and ground at auxiliary light

control switch (8).

If +24 VDC is present, replace auxiliary light control switch

(page 4-146).

If +24 VDC is not present, go to step 6.

Step 6. Disconnect connector G (10) and check for +24 VDC between wire 41LR (9)

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 7.

Step 7. Check for +24 VDC between wire 41LR (9) and ground at fuse box 2 (11).

If +24 VDC is present, repair wiring 41LR between fuse box 2.

and connector G.

If +24 VDC is not present, repair wiring 41LR at fuse box 2.

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