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FUEL SYSTEM (DFI) 3-95
Subthrottle Valve Actuator (Service Code 62)
Subthrottle Valve Actuator Input Voltage
Inspection
NOTE
○
Be sure the battery is fully charged.
•
Turn the ignition switch off.
•
Disconnect the subthrottle valve actuator connector and
connect the measuring adapter [A] between these con-
nectors as shown.
Main Harness [B]
Subthrottle Valve Actuator [C]
Special Tool - Measuring Adapter: 57001-1700
•
Connect the peak voltage adapter [D] and a digital meter
[E] to the measuring adapter leads.
Special Tool - Peak Voltage Adapter: 57001-1415
Type: KEK-54-9-B
Subthrottle Valve Actuator Input Voltage
Connections to Adapter:
(I) Digital Meter (+) → R (actuator BK/O) lead
Digital Meter (–) → Battery (–) terminal
(II) Digital Meter (+) → BK (actuator G) lead
Digital Meter (–) → Battery (–) terminal
(III) Digital Meter (+) → W (actuator P/BL) lead
Digital Meter (–) → Battery (–) terminal
(IV) Digital Meter (+) → Y (actuator Y/BK) lead
Digital Meter (–) → Battery (–) terminal
•
Measure the actuator input voltage with the engine
stopped and with the connector joined.
•
Turn the ignition switch on.
Input Voltage
Standard: About DC 8.5
∼ 10.5 V and then 0 V or
About DC 8.5
∼ 10.5 V
•
Turn the ignition switch off.
If the reading is in specification, but the actuator does not
operate, replace the throttle body assy.
If the reading is out of the specification, remove the ECU
and check the wiring for continuity between main harness
connectors.
Disconnect the ECU and actuator connectors.
Wiring Continuity Inspection
ECU Connector [A] ←→
Subthrottle Valve Actuator Connector [B]
P/BL lead (ECU terminal 1) [C]
Y/BK lead (ECU terminal 12) [D]
BK/O lead (ECU terminal 23) [E]
G lead (ECU terminal 24) [F]
If the wiring is good, check the ECU for its ground and
power supply (see ECU Power Supply Inspection).
If the ground and power supply are good, replace the ECU
(see ECU Removal/Installation).
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