Subaru Outback manuals

Subaru Outback: DTC P2096, P2097, P2101, P2102, P2103, P2109, P2122, P2123, P2127, P2128, P2135, P2138, P2227, P2228, P2229, P2610

Subaru Outback (BR) 2010-2015 Service Manual / Engine - H4SO / General Description (Diagnostic Trouble Code (DTC) ) / DTC P2096, P2097, P2101, P2102, P2103, P2109, P2122, P2123, P2127, P2128, P2135, P2138, P2227, P2228, P2229, P2610

DU:DTC P2096 POST CATALYST FUEL TRIM SYSTEM TOO LEAN (BANK 1)

1. OUTLINE OF DIAGNOSIS

Detect the malfunction of fuel system from the size of the sub feedback learning value.

Control the sub feedback learning and judge as NG when the learning value is in the lean zone.

2. COMPONENT DESCRIPTION

Subaru Outback. General Description

  1. Electromotive force
  2. Air fuel ratio
  3. Rich
  4. Lean
  5. Theoretical air fuel ratio
  6. Comparative voltage
  1. Atmosphere
  2. Exhaust gas
  3. Electromotive force

3. ENABLE CONDITION

Subaru Outback. General Description

4. GENERAL DRIVING CYCLE

Perform the diagnosis continuously when the vehicle is idling or running at a constant speed of 80 km/h (50 MPH) or more.

5. DIAGNOSTIC METHOD

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

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: 1 s × 1 time(s)

Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.

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

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: 1 s

DV:DTC P2097 POST CATALYST FUEL TRIM SYSTEM TOO RICH (BANK 1)

1. OUTLINE OF DIAGNOSIS

Detect the malfunction of fuel system from the size of the sub feedback learning value.

Sub feedback learning is being performed. When the learning value goes to the rich side, judge as NG.

2. COMPONENT DESCRIPTION

Subaru Outback. General Description

  1. Electromotive force
  2. Air fuel ratio
  3. Rich
  4. Lean
  5. Theoretical air fuel ratio
  6. Comparative voltage
  1. Atmosphere
  2. Exhaust gas
  3. Electromotive force

3. ENABLE CONDITION

Subaru Outback. General Description

4. GENERAL DRIVING CYCLE

Perform the diagnosis continuously when the vehicle is idling or running at a constant speed of 80 km/h (50 MPH) or more.

5. DIAGNOSTIC METHOD

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

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: 1 s × 1 time(s)

Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.

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

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: 1 s

DW: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

Subaru Outback. General Description

  1. Engine control module (ECM)
  2. Detecting circuit
  3. Overcurrent detection circuit
  4. Drive circuit
  5. Temperature detection circuit
  6. Electronic throttle control relay
  7. Motor

3. ENABLE CONDITION

Subaru Outback. General Description

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

Subaru Outback. General Description

Time Needed for Diagnosis:

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.

DX:DTC P2102 THROTTLE ACTUATOR CONTROL MOTOR CIRCUIT LOW

1. OUTLINE OF DIAGNOSIS

Judge as NG when the electronic throttle control power is not supplied even when ECM sets the electronic throttle control relay to ON.

2. COMPONENT DESCRIPTION

Subaru Outback. General Description

  1. Engine control module (ECM)
  2. Voltage detection circuit
  3. Drive circuit
  4. Electronic throttle control relay
  5. Motor

3. ENABLE CONDITION

Subaru Outback. General Description

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

Subaru Outback. General Description

Time Needed for Diagnosis:

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.

DY: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 throttle control relay to OFF.

2. COMPONENT DESCRIPTION

Subaru Outback. General Description

  1. Engine control module (ECM)
  2. Voltage detection circuit
  3. Drive circuit
  4. Electronic throttle control relay
  5. Motor

3. ENABLE CONDITION

Subaru Outback. General Description

4. GENERAL DRIVING CYCLE

5. DIAGNOSTIC METHOD

Judge as OK and clear the NG when the malfunction criteria below are met.

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis:

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.

DZ: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

Subaru Outback. General Description

  1. Engine control module (ECM)
  2. Drive circuit
  3. Motor
  4. Throttle position sensor

3. ENABLE CONDITION

Subaru Outback. General Description

4. GENERAL DRIVING CYCLE

Perform the diagnosis at full closed point learning.

5. DIAGNOSTIC METHOD

Judge as OK and clear the NG when the malfunction criteria below are met.

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: 8 - 80 ms

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.

EA: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

Subaru Outback. General Description

  1. Engine control module (ECM)
  2. Accelerator pedal position sensor 1 signal
  3. Accelerator pedal position sensor 2 signal
  4. Accelerator pedal position sensor

3. ENABLE CONDITION

Subaru Outback. General Description

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

5. DIAGNOSTIC METHOD

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

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: 100 ms

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.

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

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: 100 ms

EB:DTC P2123 THROTTLE/PEDAL POSITION SENSOR/SWITCH "D" CIRCUIT HIGH 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

Subaru Outback. General Description

  1. Engine control module (ECM)
  2. Accelerator pedal position sensor 1 signal
  3. Accelerator pedal position sensor 2 signal
  4. Accelerator pedal position sensor

3. ENABLE CONDITION

Subaru Outback. General Description

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

5. DIAGNOSTIC METHOD

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

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: 32 ms

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.

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

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: 32 ms

EC:DTC P2127 THROTTLE/PEDAL POSITION SENSOR/SWITCH "E" CIRCUIT LOW INPUT

1. OUTLINE OF DIAGNOSIS

Detect the open or short circuit of accelerator pedal position sensor 2.

Judge as NG if out of specification.

2. COMPONENT DESCRIPTION

Subaru Outback. General Description

  1. Engine control module (ECM)
  2. Accelerator pedal position sensor 1 signal
  3. Accelerator pedal position sensor 2 signal
  4. Accelerator pedal position sensor

3. ENABLE CONDITION

Subaru Outback. General Description

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

5. DIAGNOSTIC METHOD

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

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: 100 ms

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.

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

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: 100 ms

ED:DTC P2128 THROTTLE/PEDAL POSITION SENSOR/SWITCH "E" CIRCUIT HIGH INPUT

1. OUTLINE OF DIAGNOSIS

Detect the open or short circuit of accelerator pedal position sensor 2.

Judge as NG if out of specification.

2. COMPONENT DESCRIPTION

Subaru Outback. General Description

  1. Engine control module (ECM)
  2. Accelerator pedal position sensor 1 signal
  3. Accelerator pedal position sensor 2 signal
  4. Accelerator pedal position sensor

3. ENABLE CONDITION

Subaru Outback. General Description

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

5. DIAGNOSTIC METHOD

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

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: 100 ms

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.

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

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: 100 ms

EE:DTC P2135 THROTTLE/PEDAL POSITION SENSOR/SWITCH "A"/"B" VOLTAGE CORRELATION

1. OUTLINE OF DIAGNOSIS

Judge as NG when the signal level of throttle position sensor 1 is different from the throttle position sensor 2.

2. COMPONENT DESCRIPTION

Subaru Outback. General Description

  1. Throttle position sensor 1 signal
  2. Throttle position sensor 2 signal
  3. Throttle position sensor
  4. Engine control module (ECM)

3. ENABLE CONDITION

Subaru Outback. General Description

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

5. DIAGNOSTIC METHOD

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

Judgment Value

Subaru Outback. General Description

Details of Judgment Value

Subaru Outback. General Description

(X2) 2.125 º
(X2) 4.25 º
(X3) 9 º
(X4) 31.625 º

(Y1) 5.15 º
(Y2) 6.15 º
(Y3) 8.28 º
(Y4) 10.4 º
(Y5) 12.4 º

Time Needed for Diagnosis: 212 ms

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.

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

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: 24 ms

EF:DTC P2138 THROTTLE/PEDAL POSITION SENSOR/SWITCH "D"/"E" VOLTAGE CORRELATION

1. OUTLINE OF DIAGNOSIS

Judge as NG when the signal level of throttle position sensor 1 is different from the throttle position sensor 2.

2. COMPONENT DESCRIPTION

Subaru Outback. General Description

  1. Engine control module (ECM)
  2. Accelerator pedal position sensor 1 signal
  3. Accelerator pedal position sensor 2 signal
  4. Accelerator pedal position sensor

3. ENABLE CONDITION

Subaru Outback. General Description

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

5. DIAGNOSTIC METHOD

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

Judgment Value

Subaru Outback. General Description

Details of Judgment Value

Subaru Outback. General Description

(X1) 0.6 º
(X2) 1.2 º
(X3) 2 º
(X4) 4 º

(Y1) 1.465 º
(Y2) 1.597 º
(Y3) 1.663 º
(Y4) 2.455 º
(Y5) 3.116 º

Time Needed for Diagnosis: 116 ms

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.

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

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: 116 ms

EG:DTC P2227 BAROMETRIC PRESSURE CIRCUIT RANGE/PERFORMANCE

1. OUTLINE OF DIAGNOSIS

Detect the malfunction of barometric pressure sensor output property.

Judge as NG when the barometric pressure sensor output is largely different from the intake manifold pressure at engine start.

2. COMPONENT DESCRIPTION

The barometric pressure sensor is built into the ECM.

3. ENABLE CONDITION

Subaru Outback. General Description

4. GENERAL DRIVING CYCLE

Perform the diagnosis once at ignition switch ON.

5. DIAGNOSTIC METHOD

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

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: 328 ms

Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.

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

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: 262 ms

EH:DTC P2228 BAROMETRIC PRESSURE CIRCUIT LOW

1. OUTLINE OF DIAGNOSIS

Detect the open/short circuit of the barometric pressure sensor.

Judge as NG if out of specification.

2. COMPONENT DESCRIPTION

The barometric pressure sensor is built into the ECM.

3. ENABLE CONDITION

Subaru Outback. General Description

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

5. DIAGNOSTIC METHOD

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

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: 500 ms

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.

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

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: Less than 1 second

EI: DTC P2229 BAROMETRIC PRESSURE CIRCUIT HIGH

1. OUTLINE OF DIAGNOSIS

Detect the open/short circuit of the barometric pressure sensor.

Judge as NG if out of specification.

2. COMPONENT DESCRIPTION

The barometric pressure sensor is built into the ECM.

3. ENABLE CONDITION

Subaru Outback. General Description

4. GENERAL DRIVING CYCLE

Always perform the diagnosis continuously.

5. DIAGNOSTIC METHOD

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

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: 500 ms

Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.

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

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: Less than 1 second

EJ:DTC P2610 ECM/PCM INTERNAL ENGINE OFF TIMER PERFORMANCE

1. OUTLINE OF DIAGNOSIS

Detect malfunction of soaking timer IC by the five diagnoses below.

Subaru Outback. General Description

2. COMPONENT DESCRIPTION

The soaking timer IC is built into the ECM.

3. ENABLE CONDITIONS

Subaru Outback. General Description

4. GENERAL DRIVING CYCLE

Perform the diagnosis only once when 10 minutes have passed after the engine start and the ignition switch is OFF, and also when the ignition switch is ON after the soaking of five hours or more.

5. DIAGNOSTIC METHOD

<Timer diagnosis>

Start the count up operation of counters in ECM and in soaking timer IC when the engine is started.

Judge as timer malfunction if the difference between the counter in ECM and counter in soaking timer IC exceeds the allowable limit when the ignition switch is OFF.

Subaru Outback. General Description

Judge as NG when the following conditions are established.

Judgment Value

Subaru Outback. General Description

Judge as OK when the following conditions are established.

Judgment Value

Subaru Outback. General Description

<Full count diagnosis>

After the timer diagnosis is completed, reset the counter in soaking timer IC and start the count up operation.

Judge as full count diagnosis malfunction if counter in soaking timer IC is not $3FF (1023 count) after 4 seconds.

Subaru Outback. General Description

Judge as NG when the following conditions are established.

Judgment Value

Subaru Outback. General Description

Judge as OK when the following conditions are established.

Judgment Value

Subaru Outback. General Description

<Soaking timer IC setting diagnosis>

When setting the activation setting time to soaking timer IC, compare the writing value to soaking timer IC with read out value. Judge as malfunction if the values do not match 3 times in a row.

Subaru Outback. General Description

Judge as NG when the following conditions are established.

Judgment Value

Subaru Outback. General Description

Judge as OK when the following conditions are established.

Judgment Value

Subaru Outback. General Description

<Timer diagnosis (during soaking)>

Wake-up at the predetermined interval until five hours have passed after the ignition switch is OFF, and compare the counter in soaking timer IC with the counter in ECM.

Judge as malfunction if the counter in soaking timer IC is counted up to maximum value (1023 count) when the counter in ECM is 1637 ms, or if the counter in soaking timer IC is not counted up to maximum value (1023 count) when the counter in ECM is 2455 ms.

Subaru Outback. General Description

Judge as NG when the following conditions are established.

Judgment Value

Subaru Outback. General Description

Judge as OK when the following conditions are established.

Judgment Value

Subaru Outback. General Description

<Wake-up diagnosis>

Store the number of wake-up activation when the ECM wakes up by the soaking timer IC.

Next time when the ignition switch is ON, if the number of wake-up activation does not reach the predetermined value even though the counter in soaking timer IC exceeds the activation setting time, judge as wakeup malfunction.

Subaru Outback. General Description

Judge as NG when the following conditions are established.

Judgment Value

Subaru Outback. General Description

Judge as OK when the following conditions are established.

Judgment Value

Subaru Outback. General Description

Judge as NG when the following conditions are established.

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: 18620 s (Approx. 5 hours)

Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.

Judge as OK and clear the NG if the following conditions are established.

Judgment Value

Subaru Outback. General Description

Time Needed for Diagnosis: 18620 s (Approx. 5 hours)

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