TM 9-2320-289-34
Table 2-2, Electrical Troubleshooting (Con’t)
MALFUNCTION
TEST OR INSPECTION
Corrective ACTION
Step 7.
Check to see if piston actuator plate moves back and forth with cam follower pin.
If piston actuator plate moves, replace valve assembly (see paragraph 10-8)
and recheck. If still inoperative, replace washer pump piston and housing
assembly. (See paragraph 10-8)
If piston actuator plate does not move, replace washer pump piston and
housing assembly. (See paragraph 10-8)
15. WASHER WILL NOT SHUT OFF
Step 1.
Step 2.
Operate windshield wiper and disconnect pink lead and white lead connector from
washer pump.
If washer stops, trace circuit from pink lead and white lead for ground from
connector at wiper motor switch to wiper switch. (See wiring diagram E-20 or
E-21)
If washer still operates, perform step 2.
Disconnect all leads from windshield wiper motor. Remove washer pump cover.
Reconnect ail leads. Turn on windshield wiper switch. Check to see if ratchet gear
dog spring engages ratchet gear tooth. Check to see if retainer spring on ratchet
gear is weak. Check to see if ratchet gear teeth or pawl are damaged.
Replace any damaged components. (See paragraph 10-8)
2-50
