Subaru Outback manuals

Subaru Outback: Drive Cycle

A: PROCEDURE

It is necessary to perform the drive cycle listed below if DTC is not found in the Inspection Mode. It is possible to complete diagnosis of the DTC by performing the indicated drive cycle. After the repair for the DTC, perform a necessary drive cycle and make sure the function recovers and the DTC is recorded.

1. PREPARATION FOR DRIVE CYCLE

1) Check that the battery voltage is 12 V or more and fuel remains approx. half [20 - 40 Subaru Outback. 40 (5.3 - 10.6 US gal, 4.4 - 8.8 Imp gal) ].

2) After performing the diagnostics and Clear Memory Mode, check that no DTC remains. <Ref. to EN(H4SO)(diag)-51, Clear Memory Mode.>

3) Check the delivery (test) mode fuse is removed.

NOTE:

2. DRIVE CYCLE A

Subaru Outback. Engine (Diagnostics)

Subaru Outback. Engine (Diagnostics)

Diagnostic procedure:

1) Drive for 20 minutes or more at a constant speed of 80 km/h (50 MPH) or more.

2) Stop the vehicle and idle for one minute.

3. DRIVE CYCLE B

Subaru Outback. Engine (Diagnostics)

Diagnostic procedure:

1) Drive at 10 km/h (6 MPH) or more.

2) Stop the vehicle and idle for ten minutes.

4. DRIVE CYCLE C

Subaru Outback. Engine (Diagnostics)

Subaru Outback. Engine (Diagnostics)

Diagnostic procedure:

Drive according to the drive pattern described below.

Subaru Outback. Engine (Diagnostics)

  1. Idle the engine for 10 seconds or more.
  2. Accelerate to 97 km/h (60 MPH) or more within 20 seconds.
  3. Drive for 20 seconds or more at 97 km/h (60 MPH) or more.
  4. Decelerate with fully closed throttle to 64 km/h (40 MPH) or less.
  5. Drive for 20 seconds or more at 64 km/h (40 MPH) or less.
  6. Accelerate to 97 km/h (60 MPH) or more within 10 seconds.
  7. Stop the vehicle with throttle fully closed.
  8. Vehicle speed km/h (MPH)
  9. Sec.

5. DRIVE CYCLE D

Subaru Outback. Engine (Diagnostics)

NOTE: In drive cycle D, one drive cycle will be established when both the drift diagnosis and stuck diagnosis have completed.

Diagnostic procedure:

DRIFT DIAGNOSIS

1) Make sure of the items below before starting the engine.

2) Idle the engine until engine coolant temperature is at least 10ºC (18ºF) higher than it was when engine started.

3) After the engine has reached the state of procedure 2), idle the engine for another 5 minutes or more.

STUCK DIAGNOSIS

1) Make sure that the battery voltage is 10.9 V or more.

2) Perform the Clear Memory Mode. <Ref. to EN(H4SO)(diag)-51, Clear Memory Mode.>

3) Drive for approximately 50 Subaru Outback. 50 (13.2 US gal, 11 Imp gal) of fuel.

NOTE:

6. DRIVE CYCLE E

Subaru Outback. Engine (Diagnostics)

Diagnostic procedure:

1) Make sure that the battery voltage is 10.9 V or more.

2) Perform the Clear Memory Mode. <Ref. to EN(H4SO)(diag)-51, Clear Memory Mode.>

3) Drive for approximately 30 Subaru Outback. 30 (7.9 US gal, 6.6 Imp gal) of fuel.

NOTE:

7. DRIVE CYCLE F

Subaru Outback. Engine (Diagnostics)

Diagnostic procedure:

1) Make sure that the engine coolant temperature is less than 30ºC (86ºF).

2) Drive according to the drive pattern described below.

Subaru Outback. Engine (Diagnostics)

  1. Vehicle speed
  2. Elapsed time
  1. Idle the engine for 10 seconds or more after engine start.
  2. Drive for 8 minutes or more at a constant speed of 80 km/h (50 MPH) or more.
  3. Stop the vehicle and idle for 30 seconds or more.
  4. Drive for 30 seconds or more at a constant speed of 80 km/h (50 MPH) or more.
  5. Stop the vehicle and idle for 30 seconds or more.
  6. Drive for 30 seconds or more at a constant speed of 80 km/h (50 MPH) or more.
  7. Stop the vehicle and idle for 30 seconds.

NOTE:

8. DRIVE CYCLE H

Subaru Outback. Engine (Diagnostics)

Diagnostic procedure:

1) Perform the Clear Memory Mode. <Ref. to EN(H4SO)(diag)-51, Clear Memory Mode.>

2) With the ignition switch ON (engine OFF), read the engine coolant temperature, intake air temperature and fuel temperature. <Ref. to EN(H4SO)(diag)-33, READ CURRENT DATA FOR ENGINE (NORMAL MODE), OPERATION, Subaru Select Monitor.>

3) If the values from step 2) satisfy the following two conditions, idle the engine for one minute.

Condition:

|Engine coolant temperature - Intake air temperature| ≤ 5ºC (9ºF)
|Engine coolant temperature - Fuel temperature| ≤ 2ºC (3.6ºF)

NOTE:

9. DRIVE CYCLE J

Subaru Outback. Engine (Diagnostics)

1) Idle the engine for 15 minutes or more.

2) Turn the ignition switch to OFF.

3) After 6 hours passed from the start of step 2), read the temporary code using the Subaru Select Monitor.

<Ref. to EN(H4SO)(diag)-39, OPERATION, Read Diagnostic Trouble Code (DTC).>

Clear Memory Mode

A: OPERATION

1. SUBARU SELECT MONITOR

NOTE:

2. GENERAL SCAN TOOL

For clear memory procedures using the general scan tool, refer to "General Scan Tool Instruction Manual".

NOTE: Initial diagnosis of electronic throttle control is performed after memory clearance. Wait for 10 seconds or more after turning the ignition switch to ON, and then start the engine.

System Operation Check Mode

A: OPERATION

CAUTION: After executing the system operation check mode, execute the Clear Memory Mode. <Ref. to EN(H4SO)(diag)-51, OPERATION, Clear Memory Mode.>

NOTE: For detailed operation procedures, refer to "PC application help for Subaru Select Monitor".

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