TM 5-2420-231-23-1
0049
Table 1. Rear Window Wiper Does Not Function Correctly - Continued.
049
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Rear Window Wiper Does
Not Function Correctly -
Continued
Figure 4. Fuse Panel.
0049
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 12.
of wipers fuse. Resistance should
be 5.0 ohms or less.
Resistance Greater Than 5.0 Ohms -
Proceed to Test Step 10.
Test Step 10. Test for Faulty Rear
Window Wiper Motor.
1. Remove headliner from cab (WP
0346).
2. Disconnect two rear window wiper
motor connectors (WP 0007, Fig-
ure 138) from cab wiring harness
connectors (WP 0007, Figure
137).
3. Turn rear window wiper switch to
the off position (TM 5-2420-231-
10).
4. Using a digital multimeter, test for
Continuity - Proceed to Test Step 11.
continuity between cab wiring har-
No Continuity - Replace rear window
ness connector (WP 0007, Figure
wiper motor (WP 0343).
127) terminals A and AA.There
Install new wipers fuse (TM 5-2420-
should be no continuity.
231-10).
Proceed to Test Step 20.