TM 9-2320-289-34
Table 2-2. Electrical Troubleshooting (Con’t)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
12. INTERMITTENT WIPER OPERATION
NOTE
Ensure that windshield is dry when performing test In step 1.
Step 1.
Remove 25 amp windshield wiper fuse. (See TM 9-2320-289-20) Turn key to
“RUN” position. Check current draw across fuse block terminals where fuse was
removed with wiper in “HI” position. Record lowest current draw reading.
If current draw is less than 5 amps, replace windshield WIPER motor end cap
assembly. (See paragraph 10-8)
If current draw is more than 5 amps, perform step 2.
Step 2.
Remove windshield wiper arms and blades. (See TM 9-2320-289-20) Repeat test in
step 1.
If current draw is less than 5 amps, replace windshield wiper blades. (See
TM 9-2320-289-20)
If current draw is more than 5 amps, Perform step 3.
Step 3.
Disconnect windshield wiper linkage from windshield wiper crank arm (see
TM 9-2320-289-20) and repeat test in step 1.
If current draw is less than 5 amps, check windshield wiper linkage for
binding, Repair or replace windshield wiper linkage if binding. (See
TM 9-2320-289-20)
If current draw is more than 5 amps, disassemble windshield wiper motor
(see paragraph 10-8) and replace armature.
13. WINDSHIELD WIPER RUNS BUT BLADES WILL NOT MOVE
Step 1.
Check windshield wiper linkage connection to wiper crank arm.
If linkage
is connected,
replace
windshield wiper
motor.
(See
TM 9-2320-289-20)
If linkage is not connected,
connect linkage and check operation of
windshield wiper.
14. WASHER INOPERATIVE (WIPER OPERATIVE)
Step 1.
Check washer solvent container for proper level.
Step 2.
Check washer nozzles and hoses for restrictions and damage.
Clear restrictions or replace if damaged. (See TM 9-2320-289-20)
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