Driving Pattern: Notes

Fig 1: Identifying Recorded Driving Patterns

Courtesy 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, (Sea level, Flat road, Ambient air temperature: 20 - 30° C (68 - 86° F), is the shortest.

  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)

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

Pattern 1, see Fig 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 73 and ground is 3.0 - 4.3V).
• 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 73 and ground is lower than 1.4V).
• The engine is started at the fuel tank temperature of warmer than 0° C (32° F) (where the voltage between the ECM terminal 107 and ground is less than 4.1V).

Pattern 2, see Fig 1:

• 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, see Fig 1:

• Operate vehicle following the driving pattern shown in Fig 2.
• replace the accelerator pedal during decelerating vehicle speed from 90km/h (56MPH) to 0km/h(0MPH).
  Fig 2: Identifying Vehicle Driving Pattern 3

  Courtesy of NISSAN MOTOR CO., U.S.A.

Pattern 4, see Fig 1:

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