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 Toyota Prius BaseFACTORY OEM SERVICE PROCEDURE
Service Data
SERVICE DATA REFERENCE CHART
| Camshaft timing oil control valve - Standard resistance | Terminals 1 - 2 at 20°C (68°F) | - | 6.9 to 7.9 Ω |
| Camshaft position sensor - Standard resistance | Terminals 1 - 2 Cold | The terms "Cold" and "Hot" refer to the temperature of the sensor. "Cold" means approximately -10 to 50°C (14 to 122°F). "Hot" means approximately 50 to 100°C (122 to 212°F). | 1, 630 to 2, 740 Ω |
| Terminals 1 - 2 Hot | 2, 065 to 3, 225 Ω | ||
| Crankshaft position sensor - Standard resistance | Terminals 1 - 2 Cold | The terms "Cold" and "Hot" refer to the temperature of the sensor. "Cold" means approximately -10 to 50°C (14 to 122°F). "Hot" means approximately 50 to 100°C (122 to 212°F). | 985 to 1, 600 Ω |
| Terminals 1 - 2 Hot | 1, 265 to 1, 890 Ω | ||
| Engine coolant temperature sensor - Standard resistance | Terminals 1 - 2 at 20°C (68°F) | - | 2.32 to 2.59 Ω |
| Terminals 1 - 2 at 80°C (176°F) | - | 0.310 to 0.326 Ω | |
| Throttle body (throttle control motor) - Standard resistance | Terminals 1 - 2 at 25 °C (77°F) | - | 50 MΩ or more |
| Throttle body (throttle position sensor) - Standard resistance | Terminals 1 - 4 at 25°C (77°F) | - | 1.2 to 3.5 k Ω |
| Knock sensor - Standard resistance | Terminals 1 - 2 at 20°C (68°F) | - | 120 to 280 kΩ |
| EFI relay - Standard resistance | Terminals 3I-5 - 3I-8 | - | 10 kΩ or higher |
| Terminals 3I-5 - 3I-8 | When battery voltage is applied to terminals 3I-6 and 3I-7) | Below 1 Ω | |
| Circuit opening relay - Standard resistance | Terminals 3G-5 - 3G-8 | - | 10 kΩ or higher |
| Terminals 3G-5 - 3G-8 | When battery voltage is applied to terminals 3G-6 and 3G-7) | Below 1 Ω |
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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