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.
2012 Lexus IS 350CFACTORY OEM SERVICE PROCEDURE
Service Data
| Charging circuit without load | Standard amperage: 10 A or less Standard voltage: 13.2 to 14.8 V |
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| Charging circuit with load | Standard amperage: 30 A or more | |
| Brush length | Standard exposed length: 9.5 to 11.5 mm (0.375 to 0.452 in.) Minimum exposed length: 4.5 mm (0.178 in.) |
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| Generator rotor assembly | Slip ring resistance: 1.5 to 1.9 kΞ© at 20Β°C (68Β°F) Standard slip ring diameter: 14.2 to 14.4 mm (0.560 to 0.566 in.) Minimum slip ring diameter: 14.0 mm (0.552 in.) |
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Factory Service Tools
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:
- β’ You smell fuel, burning insulation, or see smoke.
- β’ Brakes feel soft, pull hard to one side, or make grinding noises.
- β’ The engine overheats, stalls repeatedly, or misfires under load.
- β’ You are missing required tools, torque specs, or safe lifting equipment.
- β’ You are not confident in the next step or safety outcome.
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