Subaru LEGACY 2006 Manual page 658

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Diagnostic Trouble Code (DTC) Detecting Criteria
DQ: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 it is out of specification.
2. COMPONENT DESCRIPTION
(1)
(1) Engine control module (ECM)
(2) Accelerator pedal position sensor
1 signal
3. ENABLE CONDITION
Secondary Parameters
Ignition switch
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
5. DIAGNOSTIC METHOD
Judge as OK and clear the NG when the malfunction criteria below are met.
Judgment Value
Malfunction Criteria
Sensor 1 input voltage
Time Needed for Diagnosis: 100 milliseconds
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
6. DTC CLEAR CONDITION
• When the OK idling cycle is completed 40 times in a row
• When "Clear Memory" is performed (Only with engine stopped)
7. MALFUNCTION INDICATOR LIGHT CLEAR CONDITION
• When the OK driving cycle is completed 3 times in a row
(2)
(3)
(3) Accelerator pedal position sensor
2 signal
Enable Conditions
ON
Threshold Value
≥ 0.308 V
GD(H4SO)-221
GENERAL DESCRIPTION
(4)
EN-01861
(4) Accelerator pedal position sensor