DTC	Item	Condition
P0071	AMBIENT AIR TEMPERATURE SENSOR CIRCUIT "A" RANGE/PERFORMANCE	6 hours have elapsed since ignition switch is OFF under a completely warmed up condition. For models with block heater, at least 6 hours must have elapsed without operating the block heater.
P0116	ENGINE COOLANT TEMPERATURE SENSOR 1 CIRCUIT RANGE/PERFORMANCE	6 hours have elapsed since ignition switch is OFF under a completely warmed up condition. For models with block heater, at least 6 hours must have elapsed without operating the block heater.
P0451	EVAP SYSTEM (CPC) PRESSURE SENSOR/SWITCH CIRCUIT RANGE/PERFORMANCE	60 seconds have elapsed since ignition switch is OFF.
*P050A	COLD START IDLE CONTROL SYSTEM PERFORMANCE	-
*P050B	COLD START IGNITION TIMING PERFORMANCE	-

Perform the Clear Memory Mode. Ref. to CLEAR MEMORY MODE .
With the ignition switch ON, read the value in «Coolant Temp.» and «Intake Air Temp.». Ref. to SUBARU SELECT MONITOR .
If the values from step 2 satisfy the following conditions, idle the engine for one minute.

Condition:

|Engine coolant temperature - Intake air temperature| ≤ 5°C (9°F)

NOTE:

If the conditions are not satisfied, turn the ignition switch to OFF and wait until the parameters are satisfied.
For CVT models, hold the select lever to "P" range or "N" range at idling, and for MT models, the gear shift lever in the neutral position at idling.

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Drive Cycle H