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Home >> Nissan-Datsun >> 2017 >> Sentra SL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Basic Inspection) (1.8L) >> Basic Inspection >> How To Set SRT Code >> Work Procedure >> Diagnostic Test
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Diagnostic Test

  1. CHECK DTC

    Check DTC.

    Is any DTC detected?

    YES 

    Repair malfunction(s) and erase DTC. Refer to DTC INDEX .

    NO 

    GO TO STEP 2  .

  2. CHECK SRT STATUS

    G-20 With CONSULT

    Select "SRT STATUS" in "DTC & SRT CONFIRMATION" using CONSULT.

    G-21 Without CONSULT

    Perform "SRT status" mode with ON BOARD DIAGNOSIS FUNCTION .

    NSM020 With GST

    Select Service $01 with GST.

    Is SRT code(s) set?

    YES 

    END

    NO-1 

    G-20 With CONSULT: GO TO STEP 3  .

    NO-2 

    G-21 Without CONSULT: GO TO STEP 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 DESCRIPTION .
    3. Check DTC.

    Is any DTC detected?

    YES 

    Repair malfunction(s) and erase DTC. Refer to DTC INDEX .

    NO 

    GO TO STEP 9  .

  4. PERFORM ROAD TEST

    • Check the "Performance Priority" in the "SRT ITEM" table. Refer to DESCRIPTION .
    • Perform the most efficient SRT set driving pattern to set the SRT properly. Refer to SRT SET DRIVING PATTERN .

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

    GO TO STEP 5  .

  5. PATTERN 1

    1. Check the vehicle condition;
      • Engine coolant temperature is - 10 to 35°C (14 to 95°F).
      • Fuel tank temperature is more than 0°C (32°F).
    2. Start the engine.
    3. Keep engine idling until the engine coolant temperature is greater than 70°C (158°F)
    NOTE:

    ECM terminal voltage is follows;

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

    GO TO STEP 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 STEP 7  .

  7. PATTERN 3

    • Operate vehicle following the driving pattern shown in the figure, below.
      G04073676Courtesy of NISSAN NORTH AMERICA, INC.
    • Release the accelerator pedal during deceleration of vehicle speed from 90 km/h (56 MPH) to 0 km/h (0 MPH).

    GO TO STEP 8  .

  8. PATTERN 4

    • Operate vehicle following the driving pattern shown in the figure, below.
      G06536222Courtesy of NISSAN NORTH AMERICA, INC.
      • 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 STEP 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 STEP 10  .

  10. CHECK SRT STATUS

    G-20 With CONSULT

    Select "SRT STATUS" in "DTC & SRT CONFIRMATION" using CONSULT.

    G-21 WITHOUT CONSULT

    Perform "SRT status" mode with ON BOARD DIAGNOSIS FUNCTION .

    NSM020 With GST

    Select Service $01 with GST.

    Is SRT(s) set?

    YES 

    END

    NO 

    Perform this procedure again.

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