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 RX 400h AWDFACTORY OEM SERVICE PROCEDURE
Typical Enabling Conditions
Case 1:
TYPICAL ENABLING CONDITIONS
| The monitor will run whenever these DTCs are not present | None |
| Ignition switch | ON |
| Engine | Running |
| Battery voltage | 8 V or more |
Case 2:
TYPICAL ENABLING CONDITIONS
| Internal engine OFF timer (elapsed time from engine stop) | 10 to 300 minutes |
| Battery voltage | 8 V or more |
| Ignition switch | ON |
Case 3:
TYPICAL ENABLING CONDITIONS
| Internal engine OFF timer (elapsed time from engine stop) | 310 minutes or more |
| Battery voltage | 8 V or more |
| Ignition switch | ON |
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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