TM 5-3805-293-23-2
0024
Table 1. Window Wipers and Washers Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. Front Windshield Wiper
5. Using digital multimeter, measure
Resistance 5.0 Ohms or Greater -
Does Not Operate Prop-
resistance between R-C38 termi-
Replace cab upper wiring harness
erly - Continued
nal 3 (WP 0009, Figure 372) and
(WP 0265).
R-C33 terminal 6 (WP 0009, Fig-
Proceed to step 6.
ure 371).
Resistance Less Than 5.0 Ohms -
Proceed to Test Step 23.
6. Turn battery disconnect switch
and ignition switch to ON position
(TM 5-3805-293-10).
7. Turn front windshield wiper/
Front Wiper Does Not Work in One
washer control to LOW, HIGH,
Or More Positions Or Does Not
and PARK position (TM 5-3805-
Return To Park - Repeat trouble-
293-10).
shooting from beginning.
Front Wiper Works In Low, and
High Position, and Returns to Park
- Troubleshooting complete.
Test Step 23. Test 120-YL Fused
Wiper Washer Circuit Voltage to
Front Windshield Wiper Motor.
1. Connect cab upper wiring har-
ness connector R-C33 (WP 0009,
Figure 371) on front windshield
wiper washer switch (WP 0274).
2. Turn battery disconnect switch
and ignition switch to ON position
(TM 5-3805-293-10).
3. Using digital multimeter, measure
Voltage Within 18-26 Volts - Replace
for Voltage between R-C38 termi-
front windshield wiper motor (WP
nal 6 (WP 0009, Figure 372) and
0260).
machine ground.
Proceed to step 4.
Voltage Not Within 18-26 Volts -
Replace cab upper wiring harness
(WP 0265).
Proceed to step 4.
4. Turn battery disconnect switch
and ignition switch to ON position
(TM 5-3805-293-10).
5. Turn front windshield wiper/
Front Wiper Does Not Work in One
washer control to LOW, HIGH,
Or More Positions Or Does Not
and PARK position (TM 5-3805-
Return To Park - Repeat trouble-
293-10).
shooting from beginning.
Front Wiper Works In Low, and
High Position, and Returns to Park
- Troubleshooting complete.
0024-24
