Subaru Legacy IV (2008 year). Manual - part 440

GD(H4DOTC)-210

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

EA:DTC P2103 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT HIGH

1. OUTLINE OF DIAGNOSIS

Judge as NG when the electronic throttle control power is supplied even when ECM sets the electronic throt-
tle control relay to OFF.

2. COMPONENT DESCRIPTION

3. ENABLE CONDITION

4. GENERAL DRIVING CYCLE

• When ignition switch ON 

o OFF

• Ignition switch OFF 

o ON (Only after clearing memory)

(1)

Engine control module (ECM)

(3)

Drive circuit

(5)

Motor

(2)

Voltage detection circuit

(4)

Electronic throttle control relay

 

 

Secondary Parameters

Enable Conditions

Battery voltage

t 6 V

Electronic throttle control relay output

OFF

EN-01868

(2)

(3)

(1)

(4)

(5)

12V

12V

GD(H4DOTC)-211

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

5. DIAGNOSTIC METHOD

• Abnormality Judgement

If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

Time Needed for Diagnosis: 600 ms
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.

• Normality Judgement

Judge as OK and clear the NG if the continuous time while the following conditions are established is more
than the predetermined time.

Time Needed for Diagnosis: 400 ms

Judgement Value

Malfunction Criteria

Threshold Value

Motor power voltage

t 5 V

Judgement Value

Malfunction Criteria

Threshold Value

Motor power voltage

< 5 V

GD(H4DOTC)-212

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

EB:DTC P2109 THROTTLE/PEDAL POSITION SENSOR “A” MINIMUM STOP 

PERFORMANCE

1. OUTLINE OF DIAGNOSIS

Judge as NG when full close point learning cannot conducted or abnormal value is detected.

2. COMPONENT DESCRIPTION

3. ENABLE CONDITION

4. GENERAL DRIVING CYCLE

Perform the diagnosis at full closed point learning.

(1)

Engine control module (ECM)

(3)

Motor

(4)

Throttle position sensor

(2)

Drive 

circuit

  

  

Secondary Parameters

Enable Conditions

Ignition switch

ON 

o OFF

Ignition switch (only after clear memory)

OFF 

o ON

EN-01869

(1)

(2)

(3)

(4)

GD(H4DOTC)-213

Diagnostic Trouble Code (DTC) Detecting Criteria

GENERAL DESCRIPTION

5. DIAGNOSTIC METHOD

• Abnormality Judgement

If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.

Time Needed for Diagnosis: 8 ms — 80 ms
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.

• Normality Judgement

Judge as OK and clear the NG if the continuous time while the following conditions are established is more
than the predetermined time.

Time Needed for Diagnosis: 8 ms

Judgement Value

Malfunction Criteria

Threshold Value

Throttle sensor opening angle at full 
close point learning

< 10.127 °

 or

 

> 19.872 °

or

 

Throttle opening angle when the ignition 
switch is ON – Throttle minimum stop 
position

< 1.683 °

Judgement Value

Malfunction Criteria

Threshold Value

Throttle sensor opening angle at full 
close point learning

t 10.127 °

 and

d 19.872 °

Throttle opening angle when the ignition 
switch is ON – Throttle minimum stop 
position

t 1.683 °