TM 5-2420-231-23-1
0046
Table 1. All Wipers and Washers Do Not Operate - Continued.
046
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
7. Remove wipers fuse (Figure 3,
All Wipers and Washers Do
Item 1) (TM 5-2420-231-10).
Not Operate - Continued
Figure 3. Fuse Panel.
0046
8. Using a digital multimeter, mea-
Resistance 5.0 Ohms or Less - Install
sure resistance between terminals
wipers fuse (TM 5-2420-231-10).
of wipers fuse. Resistance should
Proceed to step 9.
be 5.0 ohms or less.
Resistance Greater Than 5.0 Ohms -
Proceed to Test Step 2.
9. Connect batteries (WP 0157) and
turn ignition switch to the on posi-
tion (TM 5-2420-231-10).
10. Place front windshield wiper switch
Front Windshield Wiper Operates at
(Figure 4, Item 2) in the low-speed
Low Speed - Proceed to step 11.
position (TM 5-2420-231-10).
Front Windshield Wiper Does Not
Observe front windshield wiper
Operate at Low Speed - Diagnose
(Figure 4, Item 1). Front windshield
front windshield wiper (WP 0047).
wiper should operate at low speed.
11. Place front windshield wiper switch
Front Windshield Wiper Operates at
(Figure 4, Item 2) in the high-
High Speed - Proceed to step 12.
speed position (TM 5-2420-231-
Front Windshield Wiper Does Not
10). Observe front windshield
Operate at High Speed - Diagnose
wiper (Figure 4, Item 1). Front
front windshield wiper (WP 0047).
windshield wiper should operate at
high speed.
12. Place front windshield wiper switch
Front Windshield Wiper Parks -
(Figure 4, Item 2) in the off position
Proceed to step 13.
(TM 5-2420-231-10). Observe
Front Windshield Wiper Stops in
front windshield wiper (Figure 4,
Place (Does Not Park) - Diagnose front
Item 1). Front windshield wiper
windshield wiper (WP 0047).
should park on the left side of the
front windshield.
