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.
2007 Lexus LS 460FACTORY OEM SERVICE PROCEDURE
Service Data
1UR-FSE ENGINE CONTROL SYSTEM - SERVICE DATA
| Camshaft timing oil control valve assembly | Resistance: 6.9 to 7.9 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) | |
| Engine coolant temperature sensor | Resistance: 2.32 to 2.59 kΩ at 20°C (68°F) 0.310 to 0.326 kΩ at 80°C (176°F) |
|
| Throttle body | 1 (M-) - 2 (M+) | Resistance: 0.3 to 100Ωat20°C(68°F) |
| 3 (E2) - 5 (VC) | Resistance: 1.2 to 3.2Ω at 20°C(68°F) | |
| Knock sensor | Resistance: 120 to 280 kΩ at 20°C (68°F) | |
| IG1 relay | 3-5 | 10 kΩ or higher |
| 3-5 | Below 1 Ω (when battery voltage is applied to terminals 1 and 2) | |
| IG2 relay | 3-5 | 10 kΩ or higher |
| 3-5 | Below 1 Ω (when battery voltage is applied to terminals 1 and 2) | |
| EFI relay | 3-5 | 10kΩ or higher |
| 3-5 | Below 1 Ω (when battery voltage is applied to terminals 1 and 2) | |
| C/OPN relay | 3-5 | 10kΩ or higher |
| 3-5 | Below 1 Ω (when battery voltage is applied to terminals 1 and 2) | |
| F/PMP relay | 3-5 | Below 1 Ω |
| 3-5 | 10 kΩ or higher (when battery voltage is applied to terminals 1 and 2) | |
| Air fuel ratio sensor (for sensor 1) | 1 (HT) - 2 (+B) | 1.8to3.4Ω at 20°C(68°F) |
| Heated oxygen sensor (for sensor 2) | 1 (HT) - 2 (+B) | 11to16Ωat20°C(68°F) |
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.
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