Nissan Frontier. Instruction — part 440

P0462, P0463 FUEL LEVEL SENSOR

EC-331

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

>> INSPECTION END

EC-332

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

P0500 VSS

P0500 VSS

A/T
A/T : Description

INFOID:0000000009480995

NOTE:

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

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

to

EC-349

.

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.

A/T : On Board Diagnosis Logic

INFOID:0000000009480996

FAIL-SAFE MODE

When the malfunction is detected, ECM enters fail-safe mode.

A/T : DTC Confirmation Procedure

INFOID:0000000009480997

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. Start engine.

2. Shift the selector lever to D range and wait at least for 2 seconds.

3. Drive the vehicle at least 5 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.

4. Check 1st trip DTC.
Is 1st trip DTC detected?

YES

>> Proceed to

EC-332, "A/T : Diagnosis Procedure"

NO

>> INSPECTION END

A/T : Diagnosis Procedure

INFOID:0000000009480998

1.

CHECK DTC WITH TCM

DTC No.

Trouble diagnosis

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0500

VEH SPEED SEN/CIRC
(Vehicle speed sensor)

At 20 km/h (13 MPH), ECM detects the fol-
lowing 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 com-
munication and the vehicle speed indicated
on the combination meter exceeds 15km/h
(10 MPH).

• Harness or connector

(The CAN communication line is open
or shorted.)

• Combination meter
• ABS actuator and electric unit (control

unit)

• Wheel sensor
• TCM
• Output speed sensor

Detected item

Engine operating condition in fail-safe mode

Vehicle speed sensor

When the fail-safe system for vehicle speed sensor is activated, the cooling fan operates
(High) while engine is running.

P0500 VSS

EC-333

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Check DTC with TCM. Refer to

TM-157, "CONSULT Function (TRANSMISSION)"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Perform trouble shooting relevant to DTC indicated.

2.

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

Check DTC with ABS actuator and electric unit (control unit). Refer to

BRC-29, "CONSULT Function (ABS)"

(TYPE 1) or

BRC-147, "CONSULT Function (ABS)"

(TYPE 2).

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Perform trouble shooting relevant to DTC indicated.

3.

CHECK DTC WITH COMBINATION METER

Check DTC with combination meter. Refer to

MWI-27, "CONSULT Function (METER/M&A)"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Perform trouble shooting relevant to DTC indicated.

4.

CHECK OUTPUT SPEED SENSOR

Check output speed sensor. Refer to

TM-175, "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-51, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-42, "Intermittent Incident"

.

NO

>> Replace or replace error-detected parts.

M/T
M/T : Description

INFOID:0000000009480999

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.

M/T : On Board Diagnosis Logic

INFOID:0000000009481000

NOTE:

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

Refer to

EC-151

.

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

to

EC-349

.

FAIL-SAFE MODE

When the malfunction is detected, the ECM enters fail-safe mode.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0500
0500

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 CAN communication line is open or short-
ed)

• Harness or connectors

(The vehicle speed signal circuit is open or
shorted)

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

EC-334

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

P0500 VSS

M/T : DTC Confirmation Procedure

INFOID:0000000009481001

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 10 seconds before conducting the next test.

TESTING CONDITION:

Steps 1 and 2 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 with CONSULT. The vehicle speed on CONSULT

should exceed 10 km/h (6 MPH) when rotating wheels with suitable gear position.

If NG, go to

EC-334, "M/T : Diagnosis Procedure"

.

If OK, go to following step.

3. Select “DATA MONITOR” mode with CONSULT.
4. Warm engine up to normal operating temperature.
5. Maintain the following conditions for at least 60 consecutive seconds.

6. Check 1st trip DTC.
7. If 1st trip DTC is detected, go to

EC-334, "M/T : Diagnosis Procedure"

.

M/T : Overall Function Check

INFOID:0000000009481002

Use this procedure to check the overall function of the vehicle speed sensor circuit. During this check, a 1st

trip DTC might not be confirmed.

WITH GST

1. Lift up drive wheels.
2. Start engine.
3. Read vehicle speed sensor signal in Service $01 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-334, "M/T : Diagnosis Procedure"

.

M/T : Diagnosis Procedure

INFOID:0000000009481003

1.

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

Refer to

BRC-29, "CONSULT Function (ABS)"

(TYPE 1) or

BRC-147, "CONSULT Function (ABS)"

(TYPE 2).

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace.

2.

CHECK COMBINATION METER

Detected items

Engine operating condition in fail-safe mode

Vehicle speed sensor

When the fail-safe system for vehicle speed sensor is activated, the cooling fan operates (High) while
engine is running.

ENG SPEED

1,800 - 6,000 rpm

COOLAN TEMP/S

More than 70

°C (158°F)

B/FUEL SCHDL

5.0 - 31.8 msec

Shift lever

Except Neutral position

PW/ST SIGNAL

OFF