Drive Cycle No. 1

NOTE: Do not warm engine to normal operating temperature to check for DTCs P0111, P0125 or P0128. These codes require coolant temperature to be below a specified value.

Set engine condition as shown. See DRIVE CYCLE NO. 1 DIAGNOSTIC TROUBLE CODE table. Drive vehicle at 50 MPH for 20 minutes, then allow engine to idle for one minute. Stop engine and connect scan tool or Subaru Select Monitor (SSM) to DLC. Check for any DTCs that may have been set during this one-trip drive cycle. See DRIVE CYCLE NO. 1 DIAGNOSTIC TROUBLE CODE table.

If DTC requires two drive cycles to set DTC, stop engine. Again, drive vehicle at 50 MPH for 20 minutes, then allow engine to idle for one minute. Check for any DTCs that may have been set during this two-trip drive cycle. See DRIVE CYCLE NO. 1 DIAGNOSTIC TROUBLE CODE table.

DRIVE CYCLE NO. 1 DIAGNOSTIC TROUBLE CODE

DTC

Engine Condition

P0111 ⁽¹⁾

Coolant Temperature At Start <86°F (30°C)

P0125 ⁽¹⁾

Coolant Temperature At Start <68°F (20°C)

P0128 ⁽¹⁾

Coolant Temperature At Start <131°F (55°C)

P0130 ⁽¹⁾

Normal Operating Temperature

P0133 ⁽¹⁾

Normal Operating Temperature

P0181 ⁽¹⁾

Normal Operating Temperature

P0420 ⁽¹⁾

Normal Operating Temperature

P0442 ⁽¹⁾

Normal Operating Temperature

P0445 ⁽²⁾⁽³⁾

Normal Operating Temperature

P0451 ⁽¹⁾

Normal Operating Temperature

P0453 ⁽³⁾

Normal Operating Temperature

P0456 ⁽¹⁾

Normal Operating Temperature

P0457 ⁽¹⁾

Normal Operating Temperature

P0459

Normal Operating Temperature

P0461 ⁽¹⁾⁽²⁾

Normal Operating Temperature

P0464 ⁽¹⁾

Normal Operating Temperature

P1137 ⁽¹⁾

Normal Operating Temperature

P1442 ⁽¹⁾

Normal Operating Temperature

P1443 ⁽³⁾

Normal Operating Temperature

P1448 ⁽¹⁾⁽⁴⁾

Normal Operating Temperature

⁽¹⁾	Perform two-trip drive cycle.

⁽²⁾	Forester only.

⁽³⁾	Perform one-trip drive cycle.

⁽⁴⁾	Legacy and Outback only.