TM 5-3805-298-23-2
0136
Table 1. Front Windshield Wiper Does Not Operate - Continued.
0136
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5. Using digital multimeter
Front Windshield Wiper
Resistance 5.0 Ohms or Less
(WP 0174), measure resistance
Does Not Operate -
Replace front wiper switch (WP 0258).
between connector HN-C20
Continued
Proceed to Test Step 17.
(WP 0012, Figure 190) terminal 5
Resistance Greater Than 5.0 Ohms
and terminal 3.
Replace main cab wiring harness
(WP 0293).
Proceed to Test Step 17.
Test Step 13. Test for Voltage at
Front Wiper Motor.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Disconnect connector HN-C19
(WP 0012, Figure 189) from front
wiper motor.
3. Turn battery disconnect switch and
ignition switch to ON position
(TM 5-3805-298-10).
4. Turn front wiper switch to high
position (TM 5-3805-298-10).
5. Using digital multimeter
Voltage 18 to 28 V Replace front
(WP 0174), test for voltage
wiper motor (WP 0358).
between connector HN-C19
Proceed to Test Step 17.
(WP 0012, Figure 189) terminal 5
Voltage Less Than 18 V Proceed to
and terminal 2 (ground).
Test Step 14.
Test Step 14. Test for Open Main Cab
Wiring Harness.
1. Turn ignition switch and battery
disconnect switch to OFF position
(TM 5-3805-298-10).
2. Remove dash panel at front wiper
switch for access to wiring harness
connectors (WP 0258).
3. Disconnect connector HN-C20
(WP 0012, Figure 190) from front
wiper switch (WP 0012,
Figure 191).
4. Install a jumper wire between
terminal 5 and terminal 2 of
connector HN-C19 (WP 0012,
Figure 189).
0136-7
