Nissan March K13. Manual - part 190

P0500 VSS

EC-221

< DTC/CIRCUIT DIAGNOSIS >

[HR12DE (TYPE 1)]

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P0500 VSS

Description

INFOID:0000000005989304

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

DTC Logic

INFOID:0000000005989305

DTC DETECTION LOGIC

NOTE:
• If DTC P0500 is displayed with DTC U1001, first perform the trouble diagnosis for DTC U1001. Refer

to 

EC-126, "DTC Logic"

.

• If DTC P0500 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer

to 

EC-227, "DTC Logic"

.

DTC CONFIRMATION PROCEDURE

1.

INSPECTION START

Do you have CONSULT-III?

Do you have CONSULT-III?

YES

>> GO TO 2.

NO

>> GO TO 5.

2.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.

>> GO TO 3.

3.

CHECK VEHICLE SPEED SENSOR FUNCTION

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-III

1.

Start engine.

2.

Read “VHCL SPEED SE” in “DATA MONITOR” mode with CONSULT-III. The vehicle speed on CON-
SULT-III should exceed 10 km/h (6 mph) when rotating wheels with suitable gear position.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Go to 

EC-222, "Diagnosis Procedure"

.

4.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Select “DATA MONITOR” mode with CONSULT-III.

2.

Warm engine up to normal operating temperature.

3.

Maintain the following conditions for at least 60 consecutive seconds.

CAUTION:

Always drive vehicle at a safe speed.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0500

Vehicle speed sensor

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

• Harness or connectors

(The CAN communication line is open or shorted)

• Harness or connectors

(The vehicle speed signal circuit is open or shorted)

• Combination meter
• ABS actuator and electric unit (control unit)

EC-222

< DTC/CIRCUIT DIAGNOSIS >

[HR12DE (TYPE 1)]

P0500 VSS

4.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Go to 

EC-222, "Diagnosis Procedure"

.

NO

>> INSPECTION END

5.

PERFORM COMPONENT FUNCTION CHECK

Perform component function check. Refer to 

EC-222, "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

>> Go to 

EC-222, "Diagnosis Procedure"

.

Component Function Check

INFOID:0000000005989306

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

>> Go to 

EC-222, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005989307

1.

CHECK DTC WITH “ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)”

Check DTC with “ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)”. Refer to 

XX-XX, "*****"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace.

2.

CHECK COMBINATION METER

Check combination meter. Refer to 

MWI-18, "CONSULT-III Function"

.

>> Repair or replace malfunctioning part.

ENG SPEED

2,000 - 6,000 rpm

COOLAN TEMP/S

More than 70

°

C (158

°

F)

B/FUEL SCHDL

4.3 - 31.8 msec

Shift lever

Except Neutral position

PW/ST SIGNAL

OFF

P0603 ECM

EC-223

< DTC/CIRCUIT DIAGNOSIS >

[HR12DE (TYPE 1)]

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P0603 ECM

Description

INFOID:0000000005989308

ECM has the memory function of the DTC memory, the air-fuel ratio
feedback compensation value memory, the Idle Air Volume Learning
value memory, etc. even when the ignition switch is turned OFF.

DTC Logic

INFOID:0000000005989309

DTC DETECTION LOGIC

*: This self-diagnosis is not for ECM power supply circuit, even though “ECM BACK UP/CIRCUIT” is displayed on CONSULT-III screen.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON wait at least 10 seconds.

2.

Turn ignition switch OFF and wait at least 5 minutes

3.

Turn ignition switch ON, wait at least 10 seconds.

4.

Repeat step 2 and 3 for five times.

5.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Go to 

EC-223, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000005989310

1.

INSPECTION START

1.

Erase DTC.

2.

Perform DTC CONFIRMATION PROCEDURE.
See 

EC-223, "DTC Logic"

.

Is the 1st trip DTC P0603 displayed again?

YES

>> GO TO 2.

NO

>> INSPECTION END

2.

REPLACE ECM

1.

Replace ECM. Refer to 

EC-312, "Exploded View"

.

2.

Perform 

EC-103, "Work Procedure"

.

PBIA9222J

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0603

*

Engine control module

ECM back-up RAM system does not function 
properly.

• ECM

EC-224

< DTC/CIRCUIT DIAGNOSIS >

[HR12DE (TYPE 1)]

P0603 ECM

>> INSPECTION END