Nissan Sentra manuals

Nissan Sentra Service Manual: P0500 VSS

EXCEPT FOR M/T MODELS

EXCEPT FOR M/T MODELS : Description

ECM receives vehicle speed signals from two different paths via CAN communication line: One is from the ABS actuator and electric unit (control unit) via the combination unit and the other is from TCM.

EXCEPT FOR M/T MODELS : DTC Logic

DTC DETECTION LOGIC

NOTE:

DTC No.

CONSULT screen terms (Trouble diagnosis content)

DTC detecting condition

Possible cause

P0500 VEHICLE SPEED SEN A (Vehicle speed sensor “A”) At 20 km/h (13 MPH), ECM detects the following status continuously for 5 seconds or more: The difference between a vehicle speed calculated by a output speed sensor transmitted from TCM to ECM via CAN communication and the vehicle speed indicated on the combination meter exceeds 15km/h (10 MPH).
  • Harness or connector (CAN communication line is open or shorted.)
  • Combination meter
  • ABS actuator and electric unit (control unit)
  • Wheel sensor
  • TCM
  • Output speed sensor

DTC CONFIRMATION PROCEDURE

1.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

  1. Turn ignition switch OFF and wait at least 10 seconds.
  2. Turn ignition switch ON.
  3. Turn ignition switch OFF and wait at least 10 seconds.

>> GO TO 2.

2.PERFORM DTC CONFIRMATION PROCEDURE

  1. Start engine
  2. Shift the selector lever to D range and wait at least for 2 seconds.
  3. Drive the vehicle at least 10 seconds at 20 km/h (13 MPH) or more.

CAUTION:

Always drive vehicle at a safe speed.

NOTE:

This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road test is expected to be easier, it is unnecessary to lift the vehicle.

  1. Check 1st trip DTC.

Is 1st trip DTC detected? YES >> Proceed to EC-330, "EXCEPT FOR M/T MODELS : Diagnosis Procedure" NO >> INSPECTION END

EXCEPT FOR M/T MODELS : Diagnosis Procedure

1.CHECK DTC WITH TCM

Check DTC with TCM. Refer to TM-108, "CONSULT Function".

Is the inspection result normal? YES >> GO TO 2.

NO >> Perform trouble shooting relevant to DTC indicated. Refer to TM-126, "DTC Index".

2.CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

Check DTC with ABS actuator and electric unit (control unit). Refer to BRC-31, "CONSULT Function (ABS)".

Is the inspection result normal? YES >> GO TO 3.

NO >> Perform trouble shooting relevant to DTC indicated. Refer to BRC-43, "DTC Index".

3.CHECK DTC WITH COMBINATION METER

Check DTC with combination meter. Refer to MWI-17, "CONSULT Function (METER/M&A)".

Is the inspection result normal? YES >> GO TO 4.

NO >> Perform trouble shooting relevant to DTC indicated. Refer to MWI-26, "DTC Index".

4.CHECK OUTPUT SPEED SENSOR

Check output speed sensor. Refer to TM-178, "Diagnosis Procedure".

Is the inspection result normal? YES >> GO TO 5.

NO >> Replace or replace error-detected parts.

5.CHECK WHEEL SENSOR

Check wheel sensor. Refer to BRC-68, "Diagnosis Procedure".

Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-39, "Intermittent Incident".

NO >> Replace or replace error-detected parts.

M/T MODELS

M/T MODELS : Description

The vehicle speed signal is sent to the combination meter from the “ABS actuator and electric unit (control unit)” via the CAN communication line. The combination meter then sends a signal to the ECM via the CAN communication line.

M/T MODELS : DTC Logic

DTC DETECTION LOGIC

NOTE:

DTC No.

CONSULT screen terms (Trouble diagnosis content)

DTC detecting condition

Possible cause

P0500 VEHICLE SPEED SEN A (Vehicle speed sensor “A”) The vehicle speed signal sent to ECM is almost 0 km/h (0 MPH) even when vehicle is being driven.
  • Harness or connectors (CAN communication line is open or shorted)
  • Harness or connectors (Vehicle speed signal circuit is open or shorted)
  • Wheel sensor
  • Combination meter
  • ABS actuator and electric unit (control unit)

DTC CONFIRMATION PROCEDURE

1.INSPECTION START

Do you have CONSULT? Do you have CONSULT?

YES >> GO TO 2.

NO >> GO TO 5.

2.PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.

  1. Turn ignition switch OFF and wait at least 10 seconds.
  2. Turn ignition switch ON.
  3. Turn ignition switch OFF and wait at least 10 seconds.

>> GO TO 3.

3.CHECK VEHICLE SPEED SIGNAL

NOTE:

This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle. If a road test is expected to be easier, it is unnecessary to lift the vehicle.

With CONSULT


  1. Start engine.
  2. Read “VHCL SPEED SE” in “DATA MONITOR” mode of “ENGINE” using CONSULT. The vehicle speed on CONSULT should exceed 10 km/h (6 mph) when rotating wheels with suitable gear position.

Is the inspection result normal? YES >> GO TO 4.

NO >> Proceed to EC-333, "M/T MODELS : Diagnosis Procedure".

4.PERFORM DTC CONFIRMATION PROCEDURE

  1. Select “DATA MONITOR” mode of “ENGINE” using CONSULT.
  2. Warm engine up to normal operating temperature.
  3. Maintain the following conditions for at least 50 consecutive seconds.

CAUTION:

Always drive vehicle at a safe speed.


  1. Check 1st trip DTC.

Is 1st trip DTC detected? YES >> Proceed to EC-333, "M/T MODELS : Diagnosis Procedure".

NO >> INSPECTION END

5.PERFORM COMPONENT FUNCTION CHECK

Perform component function check. Refer to EC-332, "M/T MODELS : Component Function Check".

Use component function check to check the overall function of the vehicle speed signal circuit. During this check, a 1st trip DTC might not be confirmed.

Is the inspection result normal? YES >> INSPECTION END

NO >> Proceed to EC-333, "M/T MODELS : Diagnosis Procedure".

M/T MODELS : Component Function Check

1.PERFORM COMPONENT FUNCTION CHECK

With GST


  1. Lift up drive wheels.
  2. Start engine.
  3. Read vehicle speed signal in Service $01 with GST.

The vehicle speed signal on GST should be able to exceed 10 km/h (6 MPH) when rotating wheels with suitable gear position.

Is the inspection result normal?

YES >> INSPECTION END

NO >> Proceed to EC-333, "M/T MODELS : Diagnosis Procedure".

M/T MODELS : Diagnosis Procedure

1.CHECK DTC WITH ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)

Check DTC with ABS actuator and electric unit (control unit). Refer to BRC-31, "CONSULT Function (ABS)".

Is the inspection result normal? YES >> GO TO 2.

NO >> Perform trouble shooting relevant to DTC indicated. Refer to BRC-43, "DTC Index".

2.CHECK DTC WITH COMBINATION METER

Check DTC with combination meter. Refer to MWI-17, "CONSULT Function (METER/M&A)".

Is the inspection result normal? YES >> INSPECTION END

NO >> Perform trouble shooting relevant to DTC indicated. Refer to MWI-26, "DTC Index".

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