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FUEL SYSTEM (DFI) 3-79
Subthrottle Sensor (Service Code 32)
If the reading is out of the standard, remove the ECU
and check the wiring for continuity between main harness
connectors.
Disconnect the ECU and sensor connectors.
Wiring Continuity Inspection
ECU Connector [A] ←→
Subthrottle Sensor Connector [B]
BL lead (ECU terminal 4) [C]
G lead (ECU terminal 49) [D]
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).
Subthrottle Sensor Output Voltage Inspection
•
Measure the output voltage at the subthrottle sensor in
the same way as input voltage inspection, note the fol-
lowing.
Disconnect the subthrottle sensor connector and connect
the setting adapter [A] between these connectors.
Special Tool - Throttle Sensor Setting Adapter: 57001
-1538
Subthrottle Sensor Output Voltage
Connections to Adapter:
Digital Meter (+) → R (sensor BL/W) lead
Digital Meter (–) → BK (sensor G) lead
•
Remove the air cleaner housing (see Air Cleaner Housing
Removal).
•
Disconnect the subthrottle valve actuator connector [A].
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