Dkg (Throttle Sensor); Idle Speed Actuator - PGO Tigra AF-125BAE Service Manual

11-6 DKG (Throttle sensor)

Function:
The sensor can provide information about a throttle's
opening to ECU. According to the information thereof, ECU
has necessary data for engine load, operating status (start-up,
idle speed, partial load, and full load), acceleration,
deceleration, etc.
Principle:
As one angle sensor for linear output, this sensor is composed of two curved slide resistors and two contact
sliders. The contact slider has its spindle connected to and aligned with the throttle's axle. The voltage of 5V, U
is applied to the slide resistor's both ends. With the throttle turning, the contact sliders also turn and move on
contact sliders for output of U
Fault diagnosis:
For the throttle's turning angle greater than the upper limit or less than the lower limit, any PCODE of the
throttle sensor will be indicated on the dashboard. Turn a multi-meter's rotary switch to the "" function
("DCV" function) for measurement of resistance (output voltage). In the event of any data beyond the spec., the
sensor might be failed. For an individual sensor with regular functions, please check other circuits for any short
(open) circuit.
Measurement:
Input voltage: 5V

11-7 Idle speed actuator

Function:
Based on ECU's information for the engine load, the idle speed
actuator is used in controlling the bypass airflow by means of the
duration and the frequency (duty factor) of electrical pulse.
at any contact. Therefore, the sensor is also a potentiometer for output of angles.
P
Throttle sensor Output voltage
Full close
Full open
Fuel Injection System 7
Resistance measurement
(Individual sensor)
710~1380 
0.09V
0.96V 1.2 K~2.4K
75
,
S