Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 375
GD(H4DOTC)-252
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
5. DIAGNOSTIC METHOD
Judge as OK and clear the NG when the malfunction criteria below are met.
Time Needed for Diagnosis:
• Difference between target opening angle and actual opening angle:
• NG judgment: See
Details of Judgment time
• OK judgment: 2000 ms
• Output duty to drive circuit: 2000 ms
Details of Judgment Value
Models without SI-DRIVE
Judgment Value
Malfunction Criteria
Threshold Value
Difference between target opening angle and actual opening angle
Within OK range of
Details of Judgment value
Output duty to drive circuit
< 95 %
(X1) 6.915 °
(X2) 11.565 °
(X3) 15.785 °
(X4) 21.285 °
(X5) 29.965 °
(Y1) 4.65 °
(Y2) 4.22 °
(Y3) 5.5 °
(Y4) 8.68 °
(Y5) 25 °
EN-08017
0
(Y5)
(Y4)
(Y3)
(Y1)
0
(X1)
(X2)
(X3)
(X5)
(NG area)
(X4)
(Y2)
(OK area)
Target throttle opening angle ( )
Difference between
target opening angle
and
actual opening angle ( )
GD(H4DOTC)-253
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
Models with SI-DRIVE
Details of Judgment time
Models without SI-DRIVE
(X1) 6.15 °
(X2) 9.65 °
(X3) 14.65 °
(X4) 26.65 °
(Y1) 3.5 °
(Y2) 5 °
(Y3) 12 °
(Y4) 25 °
(X1) 8.049999237 °
(X2) 9.5 °
(X3) 14.5 °
(X4) 23.5 °
(Y1) 1000 ms
(Y2) 400 ms
(Y3) 304 ms
(Y4) 248 ms
EN-08055
0
(Y4)
(Y3)
(Y2)
(Y1)
0
(X1)
(X2)
(X3)
(NG area)
(X4)
(OK area)
Target throttle opening angle ( )
Difference between
target opening angle
and
actual opening angle ( )
EN-08018
0
(Y1)
(Y2)
(Y3)
0
(X1)
(X2)
(X3)
(X4)
(Y4)
Throttle position sensor 1 opening angle (˚)
Judgment time
(milliseconds)
GD(H4DOTC)-254
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
Models with SI-DRIVE
NOTE:
Judgment time when actual opening angle ≤ target opening angle is always 1000 milliseconds.
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
(X1) 5.5 °
(X2) 9 °
(X3) 13 °
(X4) 22 °
(Y1) 1000 ms
(Y2) 400 ms
(Y3) 300 ms
(Y4) 250 ms
EN-08056
0
(Y1)
(Y2)
(Y3)
0
(X1)
(X2)
(X3)
(X4)
(Y4)
Throttle position sensor 1 opening angle (˚)
Judgment time
(milliseconds)
GD(H4DOTC)-255
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
EZ:DTC P2122 THROTTLE/PEDAL POSITION SENSOR/SWITCH “D” CIRCUIT
LOW INPUT
1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of accelerator pedal position sensor 1.
Judge as NG if out of specification.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITIONS
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
(1)
Engine control module (ECM)
(3)
Accelerator pedal position sensor
2 signal
(4)
Accelerator pedal position sensor
(2)
Accelerator pedal position sensor
1 signal
Secondary Parameters
Enable Conditions
Ignition switch
ON
Battery voltage
≥ 6 V
EN-01861
(2)
(3)
(4)
(1)
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