Nissan Sentra Service Manual: How to set srt code

Description

OUTLINE

In order to set all SRTs, the self-diagnoses as in the “SRT ITEM” table must have been performed at least once. Each diagnosis may require actual driving for a long period of time under various conditions.

SRT ITEM

The table below shows required self-diagnostic items to set the SRT to “CMPLT”.

*1: Though displayed on the CONSULT screen, “HO2S HTR” is not SRT item.

*2: If completion of several SRTs is required, perform driving patterns (DTC confirmation procedure), one by one based on the priority for models with CONSULT.

SRT SERVICE PROCEDURE

If a vehicle has failed the state emissions inspection due to one or more SRT items indicating “INCMP”, review the flowchart diagnostic sequence, referring to the following flowchart.

SRT Set Driving Pattern

CAUTION:

Always drive the vehicle in safe manner according to traffic conditions and obey all traffic laws.

NOTE:

*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.

• 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 - 30В°C (68 - 86В°F)
• Diagnosis is performed as quickly as possible under normal conditions.

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

• "EGR/VVT SYSTEM" written in the figure is not applicable to the vehicle.

Work Procedure

1.CHECK DTC

Check DTC.

Is any DTC detected? YES >> Repair malfunction(s) and erase DTC. Refer to EC-94, "DTC Index".

NO >> GO TO 2.

2.CHECK SRT STATUS

With CONSULT

Select “SRT STATUS” in “DTC & SRT CONFIRMATION” using CONSULT.

Without CONSULT

Perform “SRT status” mode with EC-63, "On Board Diagnosis Function".

With GST

Select Service $01 with GST.

Is SRT code(s) set? YES >> END

NO-1 >> With CONSULT: GO TO 3.

NO-2 >> Without CONSULT: GO TO 4.

3.DTC CONFIRMATION PROCEDURE

1. Select “SRT WORK SUPPORT” in “DTC & SRT CONFIRMATION” using CONSULT.
2. For SRT(s) that is not set, perform the corresponding “DTC CONFIRMATION PROCEDURE” according to the “Performance Priority” in the “SRT ITEM” table. Refer to EC-145, "Description".
3. Check DTC.

Is any DTC detected? YES >> Repair malfunction(s) and erase DTC. Refer to EC-94, "DTC Index".

NO >> GO TO 9.

4.PERFORM ROAD TEST

• Check the “Performance Priority” in the “SRT ITEM” table. Refer to EC-145, "Description".
• Perform the most efficient SRT set driving pattern to set the SRT properly. Refer to EC-146, "SRT Set Driving Pattern".

  In order to set all SRTs, the SRT set driving pattern must be performed at least once.

>> GO TO 5.

5.PATTERN 1

1. Check the vehicle condition;

• Engine coolant temperature is −10 to 35В°C (14 to 95В°F).
• Fuel tank temperature is more than 0В°C (32В°F).

2. Start the engine.
3. Keep engine idling until the engine coolant temperature is greater than 70В°C (158В°F)

NOTE:

ECM terminal voltage is follows;

• Engine coolant temperature

• −10 to 35В°C (14 to 95В°F): 3.0 - 4.3 V
• 70В°(158В°F): Less than 1.4 V

>> GO TO 6.

6.PATTERN 2

1. Drive the vehicle. And 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.
2. Depress the accelerator pedal until vehicle speed is 90 km/h (56 MPH) again

NOTE:

• Checking the vehicle speed with GST is advised.
• 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.

>> GO TO 7.

7.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).

>> GO TO 8.

8.PATTERN 4

• Operate vehicle following the driving pattern shown in the figure.

• Drive the vehicle in a proper gear at 60 km/h (38 MPH) and maintain the speed.
• Release the accelerator pedal fully at least 5 seconds.
• Repeat the above two steps at least 5 times.

>> GO TO 9.

9.PATTERN 5

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

>> GO TO 10.

10.CHECK SRT STATUS

With CONSULT

Select “SRT STATUS” in “DTC & SRT CONFIRMATION” using CONSULT.

WITHOUT CONSULT

Perform “SRT status” mode with EC-63, "On Board Diagnosis Function".

With GST

Select Service $01 with GST.

Is SRT(s) set? YES >> END

NO >> Perform this procedure again.

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