3-24. ACCESSORIES TROUBLESHOOTING (CONT)
TEST OR INSPECTION
5. WASHER FLUID DOES NOT SPRAY ON WINDSHIELD (Cont).
S t e p 2 . ( C o n t ) .
b . I f a i r p r e s s u r e i s f e l t f r o m h o s e , c h e c k f l u i d r e s e r v o i r f or
cracks, breaks, or other damage. Check hose between reservoir
and nozzle for cracks, breaks, obstruction, or other damage.
Check nozzle for obstruction or other damage. Replace part(s)
determined to be defective (page 10-22).
6. CAB HEATER FAN NOT OPERATING.
Step 1. Turn ignition key switch to on position.
Turn FRONT WIPER switch to H position.
Check that windshield wiper operates.
a. If windshield wiper does not operate, go to step 2 below.
b. If windshield wiper operates, go to step 5 below.
Step 2. Press 5 ampere circuit breaker located on right instrument panel.
Check if windshield wiper and heater fan operate.
a. If both windshield wiper and heater fan operate, problem was
momentary short in circuit. If circuit breaker blows again,
problem is in circuit associated with circuit breaker.
Disconnect wires from circuit breaker, one at a time to isolate
problem to associated circuit: a u x i l i a r y s t e e r i n g , i n s t r u m e nt
panel cluster (located on left instrument panel), voltmeter, cab
relay solenoid, or electric fuel pump.
b. If windshield wiper and heater fan do not operate and circuit
breaker did not blow, go to step 3 below.