Monitors, Trips, Drive Cycles and Readiness Codes
Drive CyclePROCEDURE
For the troubleshooting, there are driving patterns described below. Driving in the specified pattern allows to diagnose malfunctioning items listed below. After the repair of the following trouble items, be sure to drive the vehicle with the specified drive patterns to check whether the function is resumed correctly.
1. PREPARATION FOR DRIVE CYCLE
1. Check that the battery voltage is 12 V or more and fuel remains approx. half [20 - 40 l (5.3 - 10.6 US gal, 4.4 - 8.8 Imp gal)].
2. After performing the diagnostics and clearing the memory, check for any remaining unresolved trouble data. Clear Memory Mode
3. Disconnect the delivery (test) mode connector.
NOTE:
- Perform the diagnosis after warming up the engine except when the engine coolant temperature at starting is specified.
- Perform the diagnosis twice if the DTC marked with *. After completing the first diagnosis, stop the engine and perform second diagnosis in same condition.
2. DRIVE CYCLE A (AFTER RUNNING 20 MINUTES AT 80 KM/H (50 MPH), IDLE THE ENGINE FOR 1 MINUTE.)
*P0125-P2103:
3. DRIVE CYCLE B - 10 MINUTES IDLING
NOTE: Drive the vehicle at 10 km/h (6 MPH) or more before diagnosis.
*P0126-P2103:
4. DRIVE CYCLE C - DRIVE THE VEHICLE WITH FOLLOWING DRIVE PATTERNS
P0026-P2103:
5. DRIVE CYCLE D
DRIFT DIAGNOSIS
1. Check that the engine coolant temperature at engine start is less than 30 °C (86 °F).
2. Make sure that fuel remains 10 l (2.6 US gal, 2.2 Imp gal) or more and the battery voltage is 10.9 V or more.
3. Start the engine, and check that the engine coolant temperature increases by 10 °C (50 °F) or more, and reaches 75 °C (167 °F) or more, when the engine is warmed up.
4. Idle the engine for 120 seconds or more in the condition of step 3.
STUCK DIAGNOSIS
1. Make sure that the battery voltage is 10.9 V or more.
2. Perform the Clear Memory Mode. Clear Memory Mode
3. Drive the vehicle for the distance equal to the fuel of 50 l (13.2 US gal, 11 Imp gal).
NOTE:
- It is acceptable to drive the vehicle intermittently.
- Do not disconnect the battery terminals while diagnosing. (Data will be cleared by disconnecting the battery terminals.)
P0181:
6. DRIVE CYCLE E
1. Make sure that the battery voltage is 10.9 V or more.
2. Perform the Clear Memory Mode. Clear Memory Mode
3. Drive the vehicle for the distance equal to the fuel of 30 l (7.9 US gal, 6.6 Imp gal).
NOTE:
- It is acceptable to drive the vehicle intermittently.
- Do not disconnect the battery terminals while diagnosing. (Data will be cleared by disconnecting the battery terminals.)
P0461:
7. DRIVE CYCLE F
1. Check that the engine coolant temperature at engine start is less than 30 °C (86 °F).
2. Start the engine, and warm it up until engine coolant temperature increases over 95 °C (203 °F).
3. After the engine has reached the state of procedure 2), idle the engine for 10 minutes or more.
NOTE: Do not disconnect the battery terminals while diagnosing. (Data will be cleared by disconnecting the battery terminals.)
P0111:
8. DRIVE CYCLE H
1. Perform the Clear Memory Mode. Clear Memory Mode
2. With the ignition switch ON, read the engine coolant temperature, intake air temperature and fuel temperature. Subaru Select Monitor
3. If the values from step 2. satisfy the following two conditions, start the engine.
Condition:
|Engine coolant temperature - intake air temperature | ≤ 5 °C (41 °F)
|Engine coolant temperature - fuel temperature | ≤ 2 °C (36 °F)
NOTE:
- If the conditions are not satisfied, turn the ignition switch to OFF and wait until the parameters are satisfied.
- Start AT vehicles in the P range, and MT vehicles in the N position.
4. Idle the engine for 1 minute under the conditions in step 3).
*P1602:
