TM 5-3805-298-23-2
0137
Table 1. Rear Window Wiper Does Not Operate - Continued.
0137
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Rear Window Wiper Does
2. Disconnect connector HN-C18
Not Operate - Continued
(WP 0012, Figure 193) from rear
wiper switch (WP 0012,
Figure 194).
3. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-298-10).
4. Using digital multimeter
Voltage 18 to 26 V Proceed to Test
(WP 0174), test for voltage
Step 4.
between connector HN-C18
Voltage Less Than 18 V Proceed to
(WP 0012, Figure 193) terminal 1
Test Step 6.
and ground.
Test Step 4. Test for Faulty Rear
Wiper Switch.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Turn rear wiper switch to high
position (TM 5-3805-298-10).
3. Using digital multimeter
Resistance 5.0 Ohms or Less
(WP 0174), measure resistance
Proceed to Test Step 5.
between rear wiper switch
Resistance Greater Than 5.0 Ohms
(WP 0012, Figure 194) terminal 1
Replace rear wiper switch (WP 0259).
and terminal 4.
Proceed to Test Step 24.
Test Step 5. Test for Voltage at Rear
Wiper Motor.
1. Connect HN-C18 (WP 0012,
Figure 193) to rear wiper switch
(WP 0012, Figure 194).
2. Disconnect connector G-C5
(WP 0012, Figure 192) from rear
wiper motor.
3. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-298-10).
4. Turn rear wiper switch to high
position (TM 5-3805-298-10).
5. Using digital multimeter
Voltage 18 to 26 V Replace rear wiper
(WP 0174), test for voltage
motor (WP 0359).
between connector G-C5
Proceed to Test Step 24.
(WP 0012, Figure 192) terminal 5
Voltage Less Than 18 V Replace
and terminal 2 (ground).
upper cab wiring harness (WP 0292).
Proceed to Test Step 24.
0137-3
