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FUEL SYSTEM (DFI) 3-61
Subthrottle Sensor (Service Code 32)
Subthrottle Sensor Removal/Adjustment
CAUTION
Do not remove or adjust the subthrottle sensor [A]
since it has been adjusted and set with precision at
the factory.
Never drop the sensor, especially on a hard surface.
Such a shock to the sensor can dam age it.
Subthrottle Sensor Connector (black) [B]
Input Voltage Inspection
NOTE
○
Be sure the battery is fully charged.
•
Turn the ignition switch OFF.
•
Disconnect the subthrottle sensor (black) [A] and connect
the harness adapter [B] between these connectors.
•
Connect a digital meter to the harness adapter lead.
Special Tool - Throttle Sensor Harness Adapter :
57001–1538
•
Measure the sensor input voltage with the engine stopped
and with the connector joined.
•
T urn the ignition switch ON.
Subthrottle Sensor Input Voltage
Connections to Adapter
Meter (+) → R (sensor BL) lead
Meter (–) → BK (sensor BR/BK) lead
Standard : 4.75 ∼ 5.25 V DC
•
Turn the ignition switch OFF.
If the input voltage is normal, check the sensor output
voltage.
If the input voltage is less than the standard, remove the
ECU and check the wiring between these connectors.
○
Disconnect the ECU and sensor connectors.
Wiring Connection
ECU Connector [A] ←→
Subthrottle Sensor C onnector [B]
BL lead (ECU terminal 1)
BR/BK lead (ECU terminal 14)
If the wiring is good, check the ECU for its ground and
power supply (see EC U section).