Table 3-5. Troubleshooting (Cont)
Test or Inspection
ELECTRICAL SYSTEM (CONT)
34. WINDSHIELD WASHER PUMP WILL NOT OPERATE.
Vehicle MASTER disconnect switch must be ON, ignition switch set to ON, and
windshield wiper/washer switch engaged. Failure to do so will cause erroneous
Refer to wiring diagram for all wiring repair steps.
Check for +24 VDC between wire 638 (1) and ground at windshield washer
pump connector (2).
If +24 VDC is present, replace windshield washer pump
If +24 VDC is not present, go to step 2.
Disconnect connector F (3) and check for +24 VDC between wire 638 (1)
If +24 VDC is present, repair wiring 638 between connector F
and windshield washer pump.
If +24 VDC is not present, reconnect connector F and go to
Remove defroster nozzle (4) and hose (5).
Remove knob (6), nut (7), and windshield wiper/washer switch (8) from
Check for +24 VDC between wire 638 (1) and ground at windshield
wiper/washer switch (8).
If +24 VDC is not present, replace windshield wiper/washer
switch (page 4-132).
If +24 VDC is present, repair wiring 638 between windshield
wiper/washer switch and connector F.