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.
2020 Subaru Forester BaseFACTORY OEM SERVICE PROCEDURE
Engine Starting System & Charging System: General Description: Specification
| Item | Specifications | ||||
|---|---|---|---|---|---|
| Starter | Type | Reduction type | |||
| Model | M000TF1171 | ||||
| Manufacturer | Mitsubishi Electric | ||||
| Voltage and output | 12 V - 1.4 kW | ||||
| Direction of rotation | Counterclockwise (when observed from pinion) | ||||
| Number of pinion teeth | 12 | ||||
| No-load characteristics | Voltage | 11 V | |||
| Current | 90 A or less | ||||
| Generator | Type | Rotating-field three-phase type, voltage regulator built-in type, each with load response control system | |||
| Model | A5TV0881 or A5TV1281 | ||||
| Manufacturer | Mitsubishi Electric | ||||
| Voltage and output | 12 V - 150 A | ||||
| Polarity on ground side | Negative | ||||
| Direction of rotation | Clockwise (when observed from pulley side) | ||||
| Stator connection | 3-phase A type | ||||
| Output current | 1, 500 r/min - 44 A or more [13.5 V] 2, 500 r/min - 121 A or more [13.5 V] 5, 000 r/min - 148 A or more [13.5 V] | ||||
| Regulated voltage | 14.0 - 14.6 V [20°C (68°F)] | ||||
| Rotor slip ring outer diameter | Standard | 22.7 mm (0.894 in) | |||
| Limit | 22.1 mm (0.870 in) | ||||
| Battery | Type | Q-85 | |||
| Nominal capacity | 5 HR: 51 Ah, 20HR: 62 Ah [25°C (77°F)] | ||||
| Nominal voltage | 12 V | ||||
| CCA | 620 A | ||||
| BCI group number(1) | N/A | ||||
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Factory Service Tools
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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.