Monitors, Trips, Drive Cycles and Readiness Codes

Drive Cycle

OPERATION
There are six drive patterns of drive cycles A - F for the trouble diagnosis. Performing the specified drive pattern allows diagnose malfunctioning items listed below. After the malfunctioning items listed below are repaired, always check if they correctly resume their functions by performing the required drive pattern.

PREPARATION FOR THE DRIVE CYCLE
1. Make sure that the fuel remains approx. half amount [20 - 40 l (5.3 - 10.6 US gal, 4.4 - 8.8 Imp gal)], and battery voltage is 12 V or more.
2. Disconnect the test mode connector.

NOTE:
- Except for the engine coolant temperature specified items at starting, the diagnosis is carried out after engine warm up.
- Carry out the diagnosis which is marked * on DTC twice, then, after finishing first diagnosis, stop the engine and do second time at the same condition.

DRIVE CYCLE A (AFTER RUNNING 20 MINUTES AT 80 KM/H (50 MPH), IDLE ENGINE FOR 1 MINUTE.)

DRIVE CYCLE B (IDLE FOR 10 MINUTES)

NOTE: Before the diagnosis, drive the vehicle at 10 km/h (6 MPH) or more.

DRIVE CYCLE C (DRIVE ACCORDING TO THE FOLLOWING DRIVE PATTERN)

DRIVE CYCLE D
- DRIFT DIAGNOSIS
1. Make sure that the engine coolant temperature at engine starting is less than 30 degree C (86 degree F).
2. Make sure that fuel of more than 10 l (2.6 US gal, 2.2 Imp gal), remains and the battery voltage is more than 10.9 V.
3. Make sure that the engine coolant temperature rises for more than 10 degree C (50 degree F) from the level of engine starting and is also more than 70 degree C (158 degree F).
4. Idle the engine for more than 120 seconds in the condition of step 3.

- STUCK DIAGNOSIS
1. Make sure that the battery voltage is more than 10.9V.
2. Perform the clear memory mode. Clearing Diagnostic Trouble Codes
3. Drive the vehicle for the distance equal to fuel of 50 l (13.2 US gal, 11.0 Imp gal).

NOTE:
- It is possible to drive intermittently.
- Do not disconnect the terminal of battery during diagnosis. (If disconnecting the terminal of battery, the data will be cleared.)

DRIVE CYCLE F
1. Make sure that the battery voltage is more than 10.9V.
2. Drive the vehicle at 80 km/h (50 MPH) for 20 minutes, and then idle the engine for a minute.
3. Read the current data of engine using Subaru Select Monitor. Make sure that the item of evaporative emission purge control system is displayed as Completed.
4. Drive down for difference of elevation of 50 m (164 ft) within 80 seconds. (Ex: Drive down a incline with grade of 6% at 40 km/h (25 MPH).]
5. Repeat the steps 4 for five times.

NOTE:
- Do not drive at more than 68 km/h (42 MPH) in steps 4 and 5.
- Do not disconnect the terminal of battery during diagnosis. (If disconnecting the terminal of battery, the data will be cleared.)
- Do not perform the Clear Memory in diagnosis. (If the Clear Memory is performed, the data will be cleared.)