1998 HONDA CIVIC Vacuum hose

)Actuator Test
't.Disconnect the actuator cable from the actuator rod
and the 4P connector.
Connect battery power to the No 4 terminal and
ground to the No. 1, No. 2 and No. 3 terminals.
Connect a vacuum pump to the vacuum hose Then
apply vacuum to the actuator.
2.
VACUUM PUMPGAUGE,0 - 30 in.Hg.
{A973X - 041 -
xxxxxl
ACTUATOR
,lP CONNEcToR
Terminalside o{male termrnals
4. The actuator rod should pull in completely. lf the rod
pulls in only pan-way or not at all' check for a leak-
ing vacuum line or defective solenoid.
ACTUATOF ROD
l-t
23-247
5. With voltage and vacuum still applied, try to pull the
actuator rod out by hand. You should not be able to
oull it out. ll you can, it is defective
1.
Disconnect ground from the No.3 terminal. The actu-
ator rod should return lf it does not return, but the
vent hose and filter are not plugged, the solenoid
valve assembly is defective.
Repeat steps 2 through 5, and disconnect ground
from the No. 1 terminal. The actuator rod should
return. lI it does not return, but the vent hose and
filter are not plugged. the solenoid valve assembly
is defective.
It you replace the solenoid valve assembly, be sure
to use new O-rings on each solenoid.
Disconnect power and ground from the 4P connector.
Disconnect the vent hose from the actuator. Connect
a vacuum pump to the actuator vent hose port, and
apply vacuum. The actuator rod should pull in com-
pletely. lf not, the vacuum valve is stuck open.
Replace the actuator'
8.

Cruise Control
t
D=
t
Astuator Replacement
1.Pull back the boot, and loosen the locknut. Then dis-
connect the cable from the bracket.
Disconnect the cable end from the actuator rod.
Disconnect the 4P connector from the actuator.
Disconnect the vacuum hosa from the vacuum tank.Pull out the vent hose.
Remove the three mounting bolts and the actuator
with the bracket.
CABTI aP CONNECTOR
lf necessary, disconnect the cable end from the link-age over the accelerator pedal, then turn the grom-
met 90' in the bulkhead, and remove the cable,
Install in the revers€ order of removal, and adjust
free play at the actuator rod after connecting thecable (see ne)d column).
7.
VACUUM HOSE
23-244
1.
Actuator Cable Adjustment
Check that the actuator cable operates smoothlywith no binding or sticking.
Stan the engine. Hold the engine at 3,000 rpm withno load (Afl'in N or E, M/T in neutral) untit theradiator fan comes on, then let it idle.
Measure the amount of movement of the actuato.rod until the cable pulls on the accelerator lever(engine speed starts to increase). Free Dlay shouldbe 11 t 1.0 mm (0.43 I 0.04 in).
LOCKNUT FREE PLAY: 11 1 1.0 mm
{o.i|:l r 0.oit in}
lf free play is not within specs, loosen the locknut,
and turn the adjusting nut as required.
NOTE: lf necessary. check the throttle cable freeplay (see section 11). then recheck the actuator rodfree play.
Retighten the locknut, and recheck the free play.
ACTUATOR ROD

)Actuator Solenoid Test
1. Disconnect the 4P connector from the actuator'
ACTUATOR
2. Check for resistance between the terminals accord-
ing to the table.
NOTE: Resistance will vary slightly with tempera-
ture; sDecified resistance is at 70"F (20'C).
SAFETY VALVE
VACUUMVALVE
J
From VENTHOSE
+ To VACUUM
Terminalside otmale terminals
Terminal
Resistance (O) \
234
VENT SOLENOID40 600o---o
VACUUM SOLENOID30- 500G---o
SAFETY SOLENOID40- 600o---o
l)
TANK
23-249