Table 5. Electrical Wiper System Troubleshooting Procedures.

TM 9-2320-361-24-1

0013 00

LIGHTING AND WIPER SYSTEM TROUBLESHOOTING (Contd)

Table 5. Electrical Wiper System Troubleshooting Procedures.

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

Test 1. Check mechanical linkage for

Replace damaged links (WP 0240 00).

WINDSHIELD WIPERS

binding or interference.

FAIL TO WORK ON

HIGH OR LOW

Test 2. Test for voltage at wiper

SETTING

switch.

1. Ensure wiper switch is

properly grounded.

2. Disconnect harness from wiper

switch.

3. Set multimeter to voltage

range that will measure

24 VDC.

4. Turn power accessory switch to

ON position.

5. Touch negative lead of

1. If voltage is present, perform test 3.

multimeter to ground and

2. If voltage is not present, go to

positive lead to lead 27 of

WP 0012 00, table 2, malfunction 1,

harness receptacle.

test 3, to check operation of power

accessory switch.

Test 3. Test for voltage at wiper motor.

1. Ensure wiper motor is

1. If properly grounded, go to step 2.

properly grounded.

2. If wiper motor is not properly

grounded, clean dirt or corrosion

from contact end and recheck

continuity.

2. Disconnect harness from

wiper motor.

3. Turn wiper switch to LOW

position.

4. Touch negative lead of

1. If voltage is present, go to step 5.

multimeter to ground and

2. If voltage is not present, replace

positive lead to pin 2 of

wiper switch (WP 0240 00).

harness receptacle.

5. Turn wiper switch to HIGH

position.

6. Touch negative lead of

1. If voltage is present, replace wiper

multimeter to ground and

motor (WP 0240 00).

positive lead to pin 1 of

2. If voltage is not present, replace

harness receptacle.

wiper switch (WP 0240 00).

END OF WORK PACKAGE

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