Subaru 2009 IMPREZA Service Manual page 907

Diagnostic Trouble Code (DTC) Detecting Criteria
DI: DTC P2101 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT RANGE/
PERFORMANCE
1. OUTLINE OF DIAGNOSIS
Judge as NG when the motor current becomes large or drive circuit is heated.
2. COMPONENT DESCRIPTION
(1)
(1) Engine control module (ECM)
(2) Detecting circuit
(3) Overcurrent detection circuit
3. ENABLE CONDITIONS
Secondary Parameters
Under control of electronic throttle control ON
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.
Judgement Value
Malfunction Criteria
Motor current
Drive circuit inner temperature
Time Needed for Diagnosis:
• 500 milliseconds (For NG)
• 2000 milliseconds (For OK)
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
(2) (3)
(4)
(2) (5)
(4) Drive circuit
(5) Temperature detection circuit
Enable Condition
Threshold Value
8 A
175°C (347°F)
GD(H4SO)-183
GENERAL DESCRIPTION
12V 12V
(6)
(6) Electronic throttle control relay
(7) Motor
(7)
EN-01867