Loading ...
Loading ...
Loading ...
3-78 FUEL SYSTEM (DFI)
Subthrottle Sensor (Service Code 32)
The subthrottle sensor is a rotating variable resistor that
change output voltage according to throttle operating. The
ECU senses this voltage change and determines fuel injec-
tion quantity, and ignition timing according to engine rpm,
and throttle opening.
Input Terminal [A]: BL
Output Terminal [B]: BL/W
Ground Terminal [C]: G
Subthrottle Sensor Removal/Adjustment
NOTICE
Do not remove or adjust the subthrottle sensor [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 sen-
sor can damage it.
Subthrottle Sensor Input Voltage Inspection
NOTE
â—‹
Be sure the battery is fully charged.
•
Turn the ignition switch off.
•
Disconnect the subthrottle sensor connector and connect
the setting adapter [A] between these connectors.
Special Tool - Throttle Sensor Setting Adapter: 57001
-1538
•
Connect a digital meter to the setting adapter leads.
Subthrottle Sensor Input Voltage
Connections to Adapter:
Digital Meter (+) → W (sensor BL) lead
Digital Meter (–) → BK (sensor G) lead
•
Measure the input voltage with the engine stopped and
with the connector joined.
•
Turn the ignition switch on.
Input Voltage
Standard: DC 4.75
∼ 5.25 V
•
Turn the ignition switch off.
If the reading is within the standard, check the output volt-
age (see Subthrottle Sensor Output Voltage Inspection).
Loading ...
Loading ...
Loading ...