Nissan Sentra Service Manual: Diagnosis description : driving pattern

DRIVING PATTERN A

Driving pattern A means a trip satisfying the following conditions.

• Engine speed reaches 400 rpm or more.
• Engine coolant temperature rises by 20В°C (36В°F) or more after starting the engine.
• Engine coolant temperature reaches 70В°C (158В°F) or more.
• The ignition switch is turned from ON to OFF.

NOTE:

• When the same malfunction is detected regardless of driving conditions, reset the counter of driving pattern A.
• When the above conditions are satisfied without detecting the same malfunction, reset the counter of driving pattern A.

DRIVING PATTERN B

Driving pattern B means a trip satisfying the following conditions.

• Engine speed reaches 400 rpm or more.
• Engine coolant temperature reaches 70В°C (158В°F) or more.
• Vehicle speed of 70 – 120 km/h (44 – 75 MPH) is maintained for 60 seconds or more under the control of closed loop.
• Vehicle speed of 30 – 60 km/h (19 – 37 MPH) is maintained for 10 seconds or more under the control of closed loop.
• Under the closed loop control condition, the following state reaches 12 seconds or more in total: Vehicle speed of 4 km/h (2 MPH) or less with idling condition.
• The state of driving at 10 km/h (7 MPH) or more reaches 10 minutes or more in total.
• A lapse of 22 minutes or more after engine start.

NOTE:

• Drive the vehicle at a constant velocity.
• When the same malfunction is detected regardless of driving conditions, reset the counter of driving pattern B.
• When the above conditions are satisfied without detecting the same malfunction, reset the counter of driving pattern B.

DRIVING PATTERN C

Driving pattern C means operating vehicle as per the following: The following conditions should be satisfied at the same time:

Engine speed: (Engine speed in the freeze frame data) В±375 rpm

Calculated load value: (Calculated load value in the freeze frame data) x (1В±0.1) [%] Engine coolant temperature condition:

• When the freeze frame data shows lower than 70В°C (158В°F), engine coolant temperature should be lower than 70В°C (158В°F).
• When the freeze frame data shows higher than or equal to 70В°C (158В°F), engine coolant temperature should be higher than or equal to 70В°C (158В°F).

NOTE:

• When the same malfunction is detected regardless of the above vehicle conditions, reset the counter of driving pattern C.
• When the above conditions are satisfied without detecting the same malfunction, reset the counter of driving pattern C.
• The 1st trip DTC will be cleared when C counter is counted once without the same malfunction after DTC is stored in ECM.

DRIVING PATTERN D

Driving pattern D means a trip satisfying the following conditions

• The state of driving at 40 km/h (25 MPH) reaches 300 seconds or more in total.
• Idle speed lasts 30 seconds or more.
• A lapse of 600 seconds or more after engine start.

NOTE:

• When the same malfunction is detected regardless of driving conditions, reset the counter of driving pattern D.
• When the above conditions are satisfied without detecting the same malfunction, reset the counter of driving pattern D.