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. Using a digital multimeter, mea-
Voltage 10 to 14 Volts - Replace right
Rear Taillights and/or
sure voltage between rear lights
taillight assembly (WP 0192).
Blackout Marker Lights Do
wiring harness connector (WP
Proceed to Test Step 21.
Not Function Correctly -
0007, Figure 94) terminals 5 and 7
Voltage Less Than 10 Volts - Replace
Continued
(ground). Voltage should be 10 to
rear lights wiring harness (WP 0184).
14 volts.
Proceed to Test Step 21.
Test Step 14. Check for Faulty
Taillights.
1. Turn ignition switch to the off posi-
tion (TM 5-2420-231-10) and dis-
connect batteries (WP 0157).
2. Disconnect left taillight (WP 0007,
Figure 93) from rear lights wiring
harness connector (WP 0007, Fig-
ure 92).
3. Connect batteries (WP 0157) and
turn ignition switch to the on posi-
tion (TM 5-2420-231-10).
4. Have an assistant depress and
hold down brake pedal (TM 5-
2420-231-10).
5. Using a digital multimeter, mea-
Voltage 10 to 14 Volts - Replace left
sure voltage between rear lights
and right taillight assembly (WP 0192).
wiring harness connector (WP
Proceed to Test Step 21.
0007, Figure 92) terminals 6 and 7
Voltage Less Than 10 Volts - Proceed
(ground). Voltage should be 10 to
to Test Step 15.
14 volts.
Test Step 15. Check for Faulty Light
Control Switch.
1. With light control switch in the B.O.
MARKER position, disconnect
front console wiring harness con-
nector (WP 0007, Figure 71) from
light control switch connector (WP
0007, Figure 72).
2. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
sure resistance between light con-
Proceed to step 3.
trol switch (WP 0007, Figure 72)
Resistance Greater Than 5.0 Ohms -
terminals A and F. Resistance
Replace light control switch (WP 0175).
should be 5.0 ohms or less.
Proceed to Test Step 21.
3. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less -
sure resistance between light con-
Proceed to Test Step 16.
trol switch (WP 0007, Figure 72)
Resistance Greater Than 5.0 Ohms -
terminals N and K. Resistance
Replace light control switch (WP 0175).
should be 5.0 ohms or less.
Proceed to Test Step 21.
0045-11
