Throttle Sensor (Service Code 11)
Throttle Sensor Output Voltage Inspection
Measure the output voltage at the throttle sensor in the
same way as input voltage inspection, note the following.
Disconnect the throttle sensor connector and connect the
measuring adapter [A] between these connectors.
Special Tool - Measuring Adapter: 57001-1700
Throttle Sensor Output Voltage
Connections to Adapter:
Digital Meter (+) → R (sensor Y) lead (KX450E9F)
Digital Meter (+) → R (sensor Y/G) lead
Digital Meter (–) → W (sensor BK) lead
Start the engine and warm it up thoroughly.
Check idle speed to ensure the throttle opening is correct.
2 000 ±50 r/min (rpm)
If the idle speed is out of the specified range, adjust it
(see Idle Speed Inspection in the Periodic Maintenance
Connect the power supply harness (option P/No. 26011
-0246) and 12 V battery to the capacitor lead connector
(see Throttle Sensor Input Voltage Inspection).
Measure the output voltage with the engine stopped, and
with the connector joined.
DC 0.525 ∼ 0.675 V at idle throttle opening
DC 3.74 ∼ 3.94 V at full throttle opening (for
Open the throttle, confirm the output voltage will be
The standard voltage refers to the value when the volt-
age reading at the Input Voltage Inspection shows 5 V
When the input voltage reading shows other than 5 V,
derive a voltage range as follows.
In the case of a input voltage of 4.75 V.
0.525 × 4.75 ÷ 5.00 = 0.499 V
0.675 × 4.75 ÷ 5.00 = 0.641 V
Thus, the valid range is 0.499
If the reading is out of the standard, check the throttle sen-
sor resistance (see Throttle Sensor Resistance Inspec-
FUEL SYSTEM (DFI) 3-37