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 Avalon LimitedFACTORY OEM SERVICE PROCEDURE
Service Data
SERVICE DATA SPECIFICATION CHART
| Throttle body | - | |
| - | Standard throttle valve opening percentage | 60% or more |
| Camshaft timing oil control valve assembly | - | |
| Resistance | at 20°C (68°F) | 6.9 to 7.9 Ω |
| Throttle body assembly | - | |
| Resistance | at 20°C (68°F) | - |
| 2 (M+) -1 (M-) | 0.3 to 100 kΩ | |
| 5 (VC) - 3 (E2) | 1.2 to 3.2 kΩ | |
| E.F.I. engine coolant temperature sensor | - | |
| Resistance | Approx. 20°C (68°F) | 2.32 to 2.59 kΩ |
| Approx. 80°C (176°F) | 0.310 to 0.326 kΩ | |
| Knock sensor | - | |
| Resistance | at 20°C (68°F) | 120 to 280 kΩ |
| Circuit opening relay (engine room junction block assembly) | - | |
| Specified condition | 1D-5 - 1D-3 | 10 kΩ or higher |
| 1D-5 - 1D-3 | Below 1 Ω | |
| - | (when battery voltage is applied to terminals 1G-5 and 1H-9) | |
| EFI relay (engine room junction block assembly) | - | |
| Specified condition | 1D-4 - 1D-6 | 10 kΩ or higher |
| 1D-4 - 1D-6 | Below 1 Ω | |
| - | (when battery voltage is applied to terminals 1H-10 and 1H-2) | |
| A/F relay (engine room junction block assembly) | - | |
| Specified condition | 1F-1 - 1C-6 | 10 kΩ or higher |
| 1F-1 - 1C-6 | Below 1 Ω | |
| - | (when battery voltage is applied to terminals 1D-5 and 1H-2) | |
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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