Nissan Frontier D22. Manual - part 321

DTC P0500 VSS

EC-387

[KA24DE]

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EC

DTC P0500 VSS

PFP:32702

Component Description

UBS00D8Q

The vehicle speed sensor is installed in the transmission. It contains
a pulse generator which provides a vehicle speed signal to the
speedometer. The speedometer then sends a signal to the ECM.

On Board Diagnosis Logic

UBS00D8R

DTC Confirmation Procedure

UBS00D8S

CAUTION:

Always drive vehicle at a safe speed.

NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and wait at
least 5 seconds before conducting the next test.
TESTING CONDITION:
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-II

1.

Start engine

2.

Read vehicle speed sensor signal in “DATA MONITOR” mode
with CONSULT-II. The vehicle speed on CONSULT-II should
exceed  10  km/h  (6  MPH)  when  rotating  wheels  with  suitable
gear position.

3.

If NG, go to 

EC-389, "Wiring Diagram"

 . 

If OK, go to following step.

4.

Select “DATA MONITOR” mode with CONSULT-II.

5.

Warm engine up to normal operating temperature.

6.

Maintain the following conditions for at least 1 minute.

7.

If 1st trip DTC is detected, go to 

EC-389, "Wiring Diagram"

 .

Overall Function Check

UBS00D8T

Use this procedure to check the overall function of the EVAP canister vent control valve circuit. During this
check, a 1st trip DTC might not be confirmed.

SEF505U

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0500

Vehicle speed sensor

The almost 0 km/h (0 MPH) signal from 
vehicle speed sensor is sent to ECM 
even when vehicle is being driven.

●

Harness or connectors
(The vehicle speed sensor circuit is open or 
shorted)

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Vehicle speed sensor

ENG SPEED

1,800 - 6,000 rpm (M/T)
1,600 - 6,000 rpm (A/T)

COOLAN TEMP/S

More than 70

°C (158°F)

B/FUEL SCHDL

7 - 15 msec (M/T)
6 - 16 msec (A/T)

Selector lever

Suitable position

PW/ST SIGNAL

OFF

SEF196Y

EC-388

[KA24DE]

DTC P0500 VSS

 WITH GST

1.

Lift up drive wheels.

2.

Start engine.

3.

Read vehicle speed sensor signal in “MODE 1” with GST.
The vehicle speed sensor on GST should be able to exceed 10
km/h (6 MPH) when rotating wheels with suitable gear position.

4.

If NG, go to 

EC-389, "Wiring Diagram"

 .

SEF568P

DTC P0500 VSS

EC-389

[KA24DE]

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Wiring Diagram

UBS00D8U

BBWA0448E

EC-390

[KA24DE]

DTC P0500 VSS

Specification data are reference values and are measured between each terminal and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)

Diagnostic Procedure

UBS00D8V

1. 

CHECK INPUT SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector and combination meter harness connector M38.

3.

Check harness continuity between ECM terminal 29 and meter terminal 2.
Refer to Wiring Diagram.

4.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 3.

NG

>> GO TO 2.

2. 

DETECT MALFUNCTIONING PART

Check the following.

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Harness connectors M59, F27

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Harness for open or short between ECM and combination meter

>> Repair open circuit or short to ground or short to power in harness or connectors.

3. 

CHECK SPEEDOMETER FUNCTION

Make sure that speedometer functions properly.

OK or NG

OK

>> GO TO 5.

NG

>> GO TO 4.

4. 

DETECT MALFUNCTIONING PART

Check the following.

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Harness connectors E43, M65

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Harness connectors E32, E202

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Harness for open or short between combination meter and vehicle speed sensor

>> Repair harness or connectors. Check vehicle speed sensor and its circuit. Refer to 

DI-13,

"INSPECTION/VEHICLE SPEED SENSOR"

 .

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MINAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

29

G/B

Vehicle speed sensor

[Engine is running]

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Lift up the vehicle

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Shift lever: D (A/T), 2nd (M/T)

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Vehicle speed: 40 km/h (25 MPH)

1 - 4V

SEF003W

Continuity should exist.