Actuator Test - Honda 2002 Accord Manual

Actuator Test
Special Tools Required
V a c u u m Pump/Gauge, 0-30 in.Hg
A973X-041-XXXXX
1. Disconnect the actuator cable f r o m the actuator rod
and disconnect the 4P connector (A).
A 9 7 3 X - 0 4 1 - X X X X X
T e r m i n a l s i d e o f
m a l e t e r m i n a l s
2. Connect battery power to the No. 4 terminal and
g r o u n d the No. 1, No. 2 and No. 3 terminals.
3. Connect a v a c u u m p u m p to the vacuum hose. Then
apply v a c u u m to the actuator.
4. The actuator rod (A) should pull in completely. If
the rod pulls in only part-way or not at all, check for
a leaking vacuum line or defective solenoid.
5. With voltage and vacuum still applied, try to pull
the actuator rod out by hand. You should not be
able to pull it out. If you can, it is defective.
6. Disconnect ground f r o m the No. 3 terminal. The
actuator rod should return. If it does not return, but
the vent hose and filter are not plugged, the
solenoid valve assembly is defective.
7. Repeat steps 2 through 5, and disconnect g r o u n d
f r o m the No. 1 terminal. The actuator rod should
return. If it does not return, but the vent hose and
filter are not plugged, the solenoid valve assembly
is defective.
8. If you replace the solenoid valve assembly, be sure
to use new O-rings on each solenoid.
9. Disconnect power and ground f r o m the 4P
connector. Disconnect the vent hose f r o m the
actuator. Connect a vacuum p u m p to the actuator
vent hose port, and apply vacuum. The actuator rod
should pull in completely. If not, the vacuum valve
is stuck open. Replace the actuator.
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