Driving Pattern: Notes

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. Refer to Fig 1.

Zone B refers to the range where the diagnosis can still be performed if the diagnosis is not completed within zone A. Refer to Fig 1.

^* : 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.

Fig 1: Driving Pattern (Drive Cycle) Graph

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

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 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:

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 Fig 2.
replace the accelerator pedal during decelerating vehicle speed from 90km/h (56MPH) to 0km/h (0MPH).

Fig 2: Driving Pattern 3 Graph

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

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 all over 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.