TM 5-2420-231-23-1
0047
Table 1. Front Windshield Wiper Does Not Function Correctly - Continued.
047
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. Remove wipers fuse (Figure 3,
Front Windshield Wiper
Item 1) (TM 5-2420-231-10).
Does Not Function Correctly
- Continued
Figure 3. Fuse Panel.
0047
Resistance 5.0 Ohms or Less - Install
3. Using a digital multimeter, mea-
wipers fuse (TM 5-2420-231-10).
sure resistance between terminals
Proceed to Test Step 5.
of wipers fuse. Resistance should
be 5.0 ohms or less.
Resistance Greater Than 5.0 Ohms -
Proceed to Test Step 3.
Test Step 3. Test for Faulty Front
Windshield Wiper Motor.
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. Turn front windshield wiper switch
to the off position (TM 5-2420-231-
10).
4. Using a digital multimeter, test for
Continuity - Proceed to Test Step 4.
continuity between front lights wir-
No Continuity - Replace front
ing harness connector (WP 0007,
windshield wiper motor (WP 0342).
Figure 62) terminals B and AA.
Install new wipers fuse (TM 5-2420-
There should be no continuity.
231-10).
Proceed to Test Step 26.