TM 5-2420-230-24-1
Table 3-6. Unit Troubleshooting Table. -- Continued
Malfunction
Test or Inspection
Corrective Action
43.
FRONT OR REAR WIPERS DO NOT WORK.
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive electrical circuits, a
direct short may result. Damage to equipment and injury or death to personnel may occur.
Step 1.
Check for 24 Vdc at terminal 23 of wiper switch (1).
If 24 Vdc is present at terminal 23, replace wiper switch (1) (Para 12-29 or Para 12-30).
If 24 Vdc is not present at terminal 23, check wiring harness on wiper switch (1) for continuity.
Replace wiring harness as necessary (Para 12-27).
NOTE
Step 2 only applies to the front wiper motor.
Step 2.
Check front wiper relays (2) to ensure they function correctly (refer to FO-1).
If front wiper relay(s) (2) do not function correctly, replace wiper relay(s) (Para 12-15).
Change 1