Subthrottle Valve Actuator (Service Code 62)
Subthrottle Valve Actuator Removal
Do not remove the subthrottle valve actuator [A]
since it has been adjusted and set with precision
at the factory.
Never drop the throttle body assy, especially on a
hard surface. Such a shock to the Subthrottle valve
actuator can damage it.
Subthrottle Valve Actuator Inspection
○
Be sure the battery is fully charged.
•
Remove the throttle body assy (see Throttle Body Assy
Removal).
•
Connect the following parts temporally.
Main Throttle Sensor Connector [A]
Subthrottle Sensor Connector [B]
Subthrottle Valve Actuator Harness Connector [C]
•
Turn the ignition switch ON.
•
Check to see that all the subthrottle valves [D] open and
close smoothly.
•
Turn the ignition switch OFF.
If the subthrottle valves do not operate, check the sub-
throttle valve actuator resistance (see Subthrottle Valve
Actuator Resistance Inspection).
Subthrottle Valve Actuator Resistance Inspection
•
Turn the ignition switch OFF.
•
Cut the band [A], and disconnect the subthrottle valve ac-
tuator connector [B].
•
Connect a digital meter to the subthrottle valve actuator
connector [A].
•
Measure the subthrottle valve actuator resistance.
Subthrottle Valve Actuator Resistance
Connections:
Standard:
If the reading is out of the standard, replace the throttle
body assy.
If the reading is within the standard, check the input volt-
age (see Subthrottle Valve Actuator Input Voltage Inspec-
tion).
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CAUTION
NOTE
BK/BL lead [1] ←→ P/BL lead [2]
G lead [3] ←→ W/BL lead [4]
About 5.2 ∼ 7.8 Ω
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FUEL SYSTEM (DFI) 3-91
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