Nissan Versa Note. Manual - part 367

EC-450

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

REFRIGERANT PRESSURE SENSOR

REFRIGERANT PRESSURE SENSOR

Component Function Check

INFOID:0000000009020942

1.

CHECK REFRIGERANT PRESSURE SENSOR OVERALL FUNCTION

1. Start engine and warm it up to normal operating temperature.

2. Turn A/C switch and blower fan switch ON.

3. Check the voltage between ECM harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Go to 

EC-450, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009020943

1.

CHECK GROUND CONNECTION

1. Turn A/C switch and blower fan switch OFF.

2. Stop engine.

3. Turn ignition switch OFF.

4. Check ground connection E15. Refer to Ground Inspection in 

GI-44, "Circuit Inspection"

. 

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace ground connection.

2.

CHECK REFRIGERANT PRESSURE SENSOR POWER SUPPLY CIRCUIT

1. Disconnect refrigerant pressure sensor harness connector.

2. Turn ignition switch ON.

3. Check the voltage between refrigerant pressure sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> GO TO 3.

3.

DETECT MALFUNCTIONING PART

Check the following.

• Harness for open or short between ECM and refrigerant pressure sensor

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

4.

CHECK REFRIGERANT PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between refrigerant pressure sensor harness connector and ECM harness connec-

tor.

ECM

Voltage

Connector

Terminal

+

−

E16

101

(Refrigerant pressure sensor signal)

98

1.0 - 4.0V

Refrigerant pressure sensor

Ground

Voltage

Connector

Terminal

E17

3

Ground

Approx. 5 V

REFRIGERANT PRESSURE SENSOR

EC-451

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

4. Also check harness for short to ground and short to power.
Is the inspection result normal?

YES

>> GO TO 6.

NO

>> GO TO 5.

5.

DETECT MALFUNCTIONING PART

Check the following.

• Harness for open or short between ECM and refrigerant pressure sensor

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

6.

CHECK REFRIGERANT PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Check the continuity between ECM harness connector and refrigerant pressure sensor harness connec-

tor.

2. Also check harness for short to ground and short to power.
Is the inspection result normal?

YES

>> GO TO 8.

NO

>> GO TO 7.

7.

DETECT MALFUNCTIONING PART

Check the following.

• Harness for open or short between ECM and refrigerant pressure sensor

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

8.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-41, "Intermittent Incident"

.

Is the inspection result normal?

YES

>> Replace refrigerant pressure sensor. Refer to 

HA-30, "REFRIGERANT PRESSURE SENSOR :

Removal and Installation"

.

NO

>> Repair or replace. 

Refrigerant pressure sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

E17

1

E16

98

Existed

Refrigerant pressure sensor

ECM

Continuity

Connector

Terminal

Connector

Terminal

E17

2

E16

85

Existed

EC-452

< SYMPTOM DIAGNOSIS >

[HR16DE]

ENGINE CONTROL SYSTEM SYMPTOMS

SYMPTOM DIAGNOSIS

ENGINE CONTROL SYSTEM SYMPTOMS

Symptom Table

INFOID:0000000009020944

SYSTEM — BASIC ENGINE CONTROL SYSTEM

SYMPTOM

Reference page

HARD/NO ST

AR

T

/REST

AR

T

 (EXCP

. 

H

A

)

ENGINE ST

ALL

HESIT

A

TION/SURGING/FLA

T

 SPOT

SP

ARK KNOCK/DET

O

NA

TION

LACK

 OF POWER/

POOR 

ACC

E

LERA

TION

HIGH IDL

E/LOW

 IDLE

ROUG

H IDLE/HUNTING

IDLI

NG VIBRA

TION

SLOW

/NO RETURN T

O

 IDLE

OVERHEA

T

S/W

A

TER TEMPERA

T

UR

E

 HIGH

EXCESS

IVE F

U

E

L CONSUMP

T

IO

N

EXCESS

IVE OIL CONSUMP

T

ION

BA

TTER

Y

 DEAD (UNDER CHARGE)

Warranty symptom code

AA

AB

AC

AD

AE

AF AG AH

AJ

AK

AL

AM HA

Fuel

Fuel  pump  circuit

1

1

2

3

2

2

2

3

2

EC-436, "Compo-
nent Function 
Check"

Fuel pressure regulator sys-
tem

3

3

4

4

4

4

4

4

4

4

EC-135, "Work Pro-
cedure"

Fuel  injector  circuit

1

1

2

3

2

2

2

2

EC-434, "Compo-
nent Function 
Check"

Evaporative emission sys-
tem

3

3

4

4

4

4

4

4

4

4

EC-40, "EVAPORA-
TIVE EMISSION 
SYSTEM : System 
Description"

Air

Positive crankcase ventila-
tion system

3

3

4

4

4

4

4

4

4

4

1

EC-464, "Inspec-
tion"

Incorrect idle speed adjust-
ment

1

1

1

1

1

EC-131, "Work Pro-
cedure"

Electric throttle control actua-
tor

1

1

2

3

3

2

2

2

2

2

2

EC-404, "DTC Log-
ic"
EC-408, "DTC Log-
ic"
EC-410, "DTC Log-
ic"

Igni-
tion

Incorrect ignition timing ad-
justment

3

3

1

1

1

1

1

1

EC-460, "Inspec-
tion"

Ignition  signal  circuit

1

1

2

2

2

2

2

2

EC-439, "Diagnosis 
Procedure"

Main power supply and ground circuit

2

2

3

3

3

3

3

2

3

EC-157, "Diagnosis 
Procedure"

ENGINE CONTROL SYSTEM SYMPTOMS

EC-453

< SYMPTOM DIAGNOSIS >

[HR16DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Mass air flow sensor circuit

1

1

2

2

2

2

2

2

EC-187, "DTC Log-
ic"

Engine coolant temperature sensor 
circuit

3

3

3

EC-198, "DTC Log-
ic"

Air fuel ratio (A/F) sensor 1 circuit

EC-210, "DTC Log-
ic"
EC-214, "DTC Log-
ic"
EC-217, "DTC Log-
ic"
EC-240, "DTC Log-
ic"
EC-397, "DTC Log-
ic"

Throttle position sensor circuit

2

2

EC-200, "DTC Log-
ic"
EC-264, "DTC Log-
ic"
EC-370, "DTC Log-
ic"
EC-371, "DTC Log-
ic"
EC-418, "DTC Log-
ic"

Accelerator pedal position sensor cir-
cuit

3

2

1

EC-412, "DTC Log-
ic"
EC-415, "DTC Log-
ic"
EC-421, "DTC Log-
ic"

Heated oxygen sensor 2 circuit

6

6

6

6

5

EC-220, "DTC Log-
ic"
EC-226, "DTC Log-
ic"
EC-234, "DTC Log-
ic"

Knock sensor circuit

2

3

EC-273, "DTC Log-
ic"

Engine oil temperature sensor circuit

4

2

3

EC-262, "DTC Log-
ic"

Engine oil pressure sensor circuit

4

4

3

3

3

3

EC-336, "DTC Log-
ic"

SYMPTOM

Reference page

HARD/NO S

TA

R

T/RES

TA

R

T (E

XCP

. HA)

E

N

GINE

 ST

ALL

HES

IT

A

TION/SURGING/FLA

T

 SPOT

S

P

ARK KNOC

K

/DET

O

NA

TI

ON

LACK OF 

POWER/POOR ACCELERA

TION

HIG

H

 IDL

E

/L

OW

 ID

LE

ROUGH IDLE/HUNTING

ID

LING VI

BRA

T

ION

S

LOW/NO RETU

RN 

T

O ID

LE

OVERHEA

T

S

/W

A

TER TEMPERA

T

URE HIG

H

E

XCESSIVE

 FUEL CON

S

UMP

T

ION

E

XCESSIVE

 OIL 

C

O

NSUMP

T

ION

B

A

TTER

Y 

DEAD (UNDER CHARGE)

Warranty symptom code

AA

AB

AC

AD

AE

AF AG AH

AJ

AK

AL

AM HA