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.
Service Data
2004 Lexus GX 470SECTION Service Data
Service Data Specifications
| Throttle body | ||
| Standard throttle valve opening percentage | 60 % or more | |
| Accelerator pedal position sensor | ||
| Voltage (ACCEL POS) | Accelerator pedal released | 0.5 - 1.1 V |
| Accelerator pedal depress | 2.6 - 4.5 V | |
| Voltage (ACCEL P0S#2) | Accelerator pedal released | 1.2 - 2.0 V |
| Accelerator pedal depress | 3.4 - 5.3 V | |
| Mass air flow meter | ||
| Resistance | at-20°C (-4°F) | 12.5 - 16.9 kΩ |
| at 20°C (68°F) | 2.19 - 2.67 kΩ | |
| at 60°C (140°F) | 0.50 - 0.68 kΩ | |
| Throttle W/ Motor body | ||
| Resistance | at 20°C (68°F) | 0.3 - 100 Ω |
| Knock control sensor | Specified condition | No continuity |
| Engine coolant temperature sensor | ||
| Resistance | Approx. 20°C (68°F) | 2.32 - 2.59 kΩ |
| Approx. 80°C (176°F) | 0.310 - 0.326 kΩ | |
| E.F.I. Circuit opening relay assy | ||
| Specified condition | 1 - 2 | Continuity |
| 3 - 5 | No continuity | |
| Main relay | ||
| Specified condition | 1 - 2 | Continuity |
| 3 - 5 | No continuity | |
RENDER: 1.0x
NO RELATED
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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.