TM 5-2420-231-23-1
0037
Table 1. Front Work Lights Do Not Function Correctly - Continued.
037
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 2. Check for Faulty Left
Front Work Lights Do Not
Work Light.
Function Correctly -
Continued
1. Turn ignition switch to the off posi-
tion (TM 5-2420-231-10) and dis-
connect batteries (WP 0157).
2. Disconnect left front work light
(WP 0007, Figure 55) from front
lights wiring harness connector
(WP 0007, Figure 54).
3. Connect batteries (WP 0157) and
turn ignition switch to the on posi-
tion (TM 5-2420-231-10).
4. Using a digital multimeter, mea-
Voltage 10 to 14 Volts - Replace left
sure voltage between front lights
front work light (WP 0178).
wiring harness connector (WP
Proceed to Test Step 13.
0007, Figure 54) terminals 1 and 2.
Voltage Less Than 10 Volts - Replace
Voltage should be 10 to 14 volts.
front lights wiring harness (WP 0183).
Proceed to Test Step 13.
Test Step 3. Check for Faulty Right
Work Light.
1. Turn ignition switch to the off posi-
tion (TM 5-2420-231-10) and dis-
connect batteries (WP 0157).
2. Disconnect right front work light
(WP 0007, Figure 57) from front
lights wiring harness connector
(WP 0007, Figure 56).
3. Connect batteries (WP 0157) and
turn ignition switch to the on posi-
tion (TM 5-2420-231-10).
4. Using a digital multimeter, mea-
Voltage 10 to 14 Volts - Replace right-
sure voltage between front lights
front work light (WP 0178).
wiring harness connector (WP
Proceed to Test Step 13.
0007, Figure 56) terminals 1 and 2.
Voltage Less Than 10 Volts - Replace
Voltage should be 10 to 14 volts.
front lights wiring harness (WP 0183).
Proceed to Test Step 13.
Test Step 4. Check for Faulty Left and
Right Work Lights.
1. Turn ignition switch to the off posi-
tion (TM 5-2420-231-10) and dis-
connect batteries (WP 0157).
2. Disconnect left front work light (WP
0007, Figure 55) from front lights
wiring harness connector (WP
0007, Figure 54).
0037-3
