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.
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HOMESERVICE MANUALSSUBARU2007LEGACY I, 4D WAGON, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMDIAGNOSTIC TROUBLE CODE (DTC) DETECTING CRITERIA (H4SO)DIAGNOSTIC TROUBLE CODE (DTC) DETECTING CRITERIADTC P1602 CONTROL MODULE PROGRAMMING ERRORDIAGNOSTIC METHODMAP 3
2007 Subaru Legacy i, 4D Wagon, Automatic
Map 3
2007 Subaru Legacy i, 4D Wagon, AutomaticSECTION Map 3
ENGINE COOLANT TEMPERATURE AND ENGINE SPEED SPECIFICATION
| Engine coolant temperature at engine starting | 5°C (41-F) | 10°C (50°F) | 20°C (68°F) | 30°C (86°F) | 40°C (104°F) |
| Engine speed (rpm) | 300 | 300 | 300 | 300 | 300 |
Time Needed for Diagnosis: 6 seconds
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
RENDER: 1.0x
NO RELATED
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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.