TM 5-2420-231-23-1
0045
Table 1. Rear Taillights and/or Blackout Marker Lights Do Not Function Correctly - Continued.
045
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5. Turn light control switch lever (Fig-
Rear Taillights and/or
ure 1, Item 6) to the B.O. MARKER
Blackout Marker Lights Do
position (Figure 1, Item 8) (TM 5-
Not Function Correctly -
2420-231-10).
Continued
6. Observe and record two front
Both Left and Right Rear Taillights
(Figure 1, Item 1) and rear black-
On and Both Blackout Marker Lights
On - Proceed to step 8.
out marker lights (Figure 1, Item 2)
(TM 5-2420-231-10).
Left Rear Taillight Off, Right Rear
Taillight Light On, and Both Left and
Right Blackout Marker Lights On -
Proceed to Test Step 2.
Right Rear Taillight Off, Left Rear
Taillight On, and Both Blackout
Marker Lights On - Proceed to Test
Step 3.
Both Rear Taillights On, Both
Blackout Marker Lights On, Left
Front Blackout Marker Light Off, and
Right Front Blackout Marker Light
On - Proceed to Test Step 4.
Both Rear Taillights and Blackout
Marker Lights On, Right Front
Blackout Marker Light Off, and Left
Front Blackout Marker Light On -
Proceed to Test Step 5.
Both Left and Right Rear Taillights
Off and Both Rear Blackout Marker
Lights On - Proceed to Test Step 6.
Both Left and Right Rear Taillights
On and Both Blackout Marker Lights
Off - Proceed to Test Step 8.
Both Left and Right Rear Taillights
Off and Both Rear Blackout Marker
Lights Off - Proceed to Test Step 10.
7. Turn light control switch lever (Fig-
ure 1, Item 6) to the SER. DRIVE
position (Figure 1, Item 7) (TM 5-
2420-231-10).
8. Have an assistant depress and
hold down brake pedal (Figure 1,
Item 9) (TM 5-2420-231-10).
9. Observe and record two brake/tail-
lights (Figure 1, Item 3) (TM 5-
2420-231-10). Both brake lights
should be on.
10. Turn light control switch lever (Fig-
ure 1, Item 6) to the B.O. MARKER
position (Figure 1, Item 8) (TM 5-
2420-231-10).
0045-2
