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.
2008 Lexus GS 460FACTORY OEM SERVICE PROCEDURE
Service Data
SERVICE DATA - 1UR-FSE ENGINE CONTROL SYSTEM
| Camshaft timing oil control valve assembly | Resistance: 6.9 to 7.9 Ω at 20°C (68°F) |
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| Throttle body | 1 (M-) - 2 (M+) | Resistance: 0.3 to 100 Ω at 20°C (68°F) |
| Engine coolant temperature sensor | Resistance: 2.32 k to 2.59 kΩ at 20°C (68°F) 0.310 k to 0.326 kΩ at 80°C (176°F) |
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| Knock sensor | Resistance: 120 to 280 kΩ at 20°C (68°F) |
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| Air fuel ratio sensor (for sensor 1) | 1 (HT) - 2 (+B) | 1.8 to 3.4Ω at 20°C (68°F) |
| Heated oxygen sensor (for sensor 2) | 1 (HT) - 2 (+B) | 11 to 16 Ω at 20°C (68°F) |
| VVT relay | 3-5 | 10 kΩ or higher |
| 3-5 | Below 1 Ω (when battery voltage is applied to terminals 1 and 2) |
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| C/OPN relay Integration relay | 2C-1 - 2B-7 | Below 1 Ω |
| 2C-1 - 2B-8 | 10 kΩ or higher | |
| 2C-1 - 2B-8 | Below 1 Ω (when battery voltage is applied to terminals 1 and 2) |
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| EFI MAIN relay Integration relay | 2A-6 - 2A-7 | Below 1 Ω |
| EFI fuse terminal 12-2A-8 | 10 kΩ or higher | |
| EFI fuse terminal 12-2A-8 | Below 1 Ω (when battery voltage is applied to terminals 1 and 2) |
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| EFI NO. 2 relay Integration relay | 2A-8 - 2B-3 | Below 1 Ω |
| 2B-7 - 2C-1 | 10 kΩ or higher | |
| 2B-7 - 2C-1 | Below 1 Ω (when battery voltage is applied to terminals 1 and 2) |
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| INJ relay Integration relay | 2A-1 - 2A-3 | Below 1 Ω |
| INJ fuse terminal 2 - Terminal 2A-4 | 10 kΩ or higher | |
| INJ fuse terminal 2 - Terminal 2A-4 | Below 1 Ω (when battery voltage is applied to terminals 1 and 2) |
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| NO. 2 Ignition relay | 3-4 | Below 1 Ω |
| 3-4 | 10 kΩ or higher (when battery voltage is applied to terminals 1 and 2) |
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| Fuel pump relay | 3-4 | Below 1 Ω |
| 3-4 | 10 kΩ or higher (when battery voltage is applied to terminals 1 and 2) |
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| Air fuel ratio sensor relay | 3-5 | 10 kΩ or higher |
| 3-5 | Below 1 Ω (when battery voltage is applied to terminals 1 and 2) |
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| INJ2 relay | 3-5 | 10 kΩ or higher |
| 3-5 | Below 1 Ω (when battery voltage is applied to terminals 1 and 2) |
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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:
- • 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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