2007 Lexus LS 460LFACTORY OEM SERVICE PROCEDURE

Driving Pattern

WARNING: This page is about a different car, the 2009 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
Fig 1: ECM Driving Pattern
G04925712Courtesy of NISSAN MOTOR CO., U.S.A.
  • The time required for each diagnosis varies with road surface conditions, weather, altitude, individual driving habits, etc.

    Zone A refers to the range where the time, required for the diagnosis under normal conditions*, is the shortest.

    Zone B refers to the range where the diagnosis can still be performed if the diagnosis is not completed within zone A.

    *: Normal conditions refer to the following:

  • Sea level
  • Flat road
  • Ambient air temperature: 20 - 30°C (68 - 86°F)
  • Diagnosis is performed as quickly as possible under normal conditions.

    Under different conditions [For example: ambient air temperature other than 20 - 30°C (68 - 86°F)], diagnosis may also be performed.

Pattern 1:

  • The engine is started at the engine coolant temperature of -10 to 35°C (14 to 95°F) (where the voltage between the ECM terminal 46 and ground is 3.0 - 4.3 V). 
  • The engine must be operated at idle speed until the engine coolant temperature is greater than 70°C (158°F) (where the voltage between the ECM terminal 46 and ground is lower than 1.4 V). 
  • The engine is started at the fuel tank temperature of warmer than 0°C (32°F) (where the voltage between the ECM terminal 95 and ground is less than 4.1 V). 

Pattern 2:

  • When steady-state driving is performed again even after it is interrupted, each diagnosis can be conducted. In this case, the time required for diagnosis may be extended.

Pattern 3:

  • Operate vehicle following the driving pattern shown in the figure.
  • Release the accelerator pedal during deceleration of vehicle speed from 90 km/h (56 MPH) to 0 km/h (0 MPH).

Pattern 4:

  • The accelerator pedal must be held very steady during steady state driving.
  • If the accelerator pedal is moved, the test must be conducted again.

*1: Depress the accelerator pedal until vehicle speed is 90 km/h (56 MPH), then release the accelerator pedal and keep it released for more than 10 seconds. Depress the accelerator pedal until vehicle speed is 90 km/h (56 MPH) again.

*2: Checking the vehicle speed with GST is advised.

Fig 2: Vehicle Speed Driving Pattern
G04874805Courtesy of NISSAN MOTOR CO., U.S.A.

Suggested Transmission Gear Position for CVT Models

Set the selector lever in the D position.

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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