TM 5-2420-231-23-1
0047
Table 1. Front Windshield Wiper Does Not Function Correctly - Continued.
047
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test Step 5. Test For Voltage to Front
Front Windshield Wiper
Windshield Wiper Motor.
Does Not Function Correctly
- Continued
1. Remove headliner from cab (WP
0346).
2. Disconnect two front windshield
wiper motor (WP 0007, Figure 63)
connectors from front lights wiring
harness connector (WP 0007, Fig-
ure 62).
3. Connect batteries (WP 0157), and
turn ignition switch to the on posi-
tion (TM 5-2420-231-10).
4. Place front windshield wiper switch
in the low speed position (TM 5-
2420-231-10).
5. Using digital multimeter, measure
Voltage 10 to 14 Volts - Proceed to
voltage between front lights wiring
step 6.
harness connector (WP 0007, Fig-
Voltage Less Than 10 Volts - Turn
ure 62) terminal B and machine
front windshield wiper switch to the off
ground. Voltage should be 10 to 14
position (TM 5-2420-231-10).
volts.
Proceed to Test Step 6.
6. Using digital multimeter, measure
Voltage 10 to 14 Volts - Replace front
voltage between front lights wiring
windshield wiper motor (WP 0342).
harness connector (WP 0007, Fig-
Install new wipers fuse (TM 5-2420-
ure 62) terminal B and terminal
231-10).
AA. Voltage should be 10 to 14
Proceed to Test Step 26.
volts.
Voltage Less Than 10 Volts - Replace
front lights wiring harness (WP 0183).
Proceed to Test Step 26.
Test Step 6. Test for Voltage to Front
Windshield Wiper Switch.
1. Turn ignition switch to the off posi-
tion (TM 5-2420-231-10) and dis-
connect batteries (WP 0157).
2. Remove instrument panel front
covers (WP 0174).
3. Connect batteries (WP 0157) and
turn ignition switch to the on posi-
tion (TM 5-2420-231-10).
4. Using digital multimeter, measure
Voltage 10 to 14 Volts - Proceed to
voltage between front console wir-
Test Step 7.
ing harness connector (WP 0007,
Voltage Less Than 10 Volts - Replace
Figure 131) terminal 2 and
front console wiring harness (WP
machine ground. Voltage should
0162).
be 10 to 14 volts.
Connect all wiring harness connectors.
Proceed to Test Step 26.
0047-6