Main Throttle Sensor (Service Code 11)
The standard voltage marked with an asterisk refers to
the value when the voltage reading at the Input Voltage
Inspection shows 5 V exactly.
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.
1.05 × 4.75 ÷ 5.00 = 1.00 V
4.26 × 4.75 ÷ 5.00 = 4.05 V
Thus, the valid range is 1.00
If the output voltage is within the standard range, check
the wiring for continuity (see next diagram).
If the output voltage is far out of the standard range (e.g.
when the wiring is open, the reading is 0 V), check the
main throttle sensor resistance.
Main Throttle Sensor Resistance Inspection
Turn the ignition switch OFF.
Disconnect the main throttle sensor connector.
Connect a digital meter [A] to the main throttle sensor
Measure the main throttle sensor resistance.
Main Throttle Sensor Resistance
BL lead [C] ←→ BR/BK lead [D]
4 ∼ 6 kΩ
If the reading is out of the range, replace the throttle body
If the reading is within the range, but the problem still
exists, replace the ECU.
FUEL SYSTEM (DFI) 3-53