Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Drive Cycle H
- Perform the Clear Memory Mode. Refer to CLEAR MEMORY MODE .
- With the ignition switch ON, read the engine coolant temperature, intake air temperature and fuel temperature. Refer to READ CURRENT DATA FOR ENGINE (NORMAL MODE) , OPERATION, Subaru Select Monitor.
- 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 neutral position.
- Idle the engine for 1 minute under the conditions in step 3).ITEM CONDITION CHART
DTC Item Condition *P1602 Control Module Programming Error -
Use the Manual With the Right Hardware
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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.
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