Nissan Cube. Manual - part 349

EC-282

< DTC/CIRCUIT DIAGNOSIS >

[MR18DE]

P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR

YES

>> GO TO 6.

NO

>> GO TO 5.

5.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors B4, M79
• Harness connectors M77, E105
• Harness connectors E8, F1
• Harness for open or short between EVAP control system pressure sensor and ECM

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

6.

CHECK SENSOR POWER SUPPLY CIRCUIT

Check harness for short to power and short to ground, between the following terminals.

Is the inspection result normal?

YES

>> GO TO 7.

NO

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

7.

CHECK COMPONENTS

Check the following.
• Battery current sensor (Refer to 

EC-337, "Component Inspection"

.)

• Crankshaft position sensor (POS) (Refer to 

EC-244, "Component Inspection"

.)

• Refrigerant pressure sensor (Refer to 

EC-425, "Diagnosis Procedure"

.)

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Replace malfunctioning component.

8.

CHECK APP SENSOR

Refer to 

EC-385, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 10.

NO

>> GO TO 9.

9.

REPLACE ACCELERATOR PEDAL ASSEMBLY

1.

Replace accelerator pedal assembly

2.

Perform 

EC-385, "Special Repair Requirement"

.

>> INSPECTION END

10.

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND

SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between EVAP control system pressure sensor harness connector and ECM har-
ness connector.

ECM

Sensor

Connector

Terminal

Name

Connector

Terminal

F8

74

Refrigerant pressure sensor

E49

3

75

CKP sensor (POS)

F20

1

76

EVAP control system pressure sen-
sor

B21

3

77

Battery current sensor

F53

1

E16

102

APP sensor

E110

5

P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR

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4.

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

Is the inspection result normal?

YES

>> GO TO 12.

NO

>> GO TO 11.

11.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors B4, M79
• Harness connectors M77, E105
• Harness connectors E8, F1
• Harness for open or short between EVAP control system pressure sensor and ECM

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

12.

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND

SHORT

1.

Check the continuity between EVAP control system pressure sensor harness connector and ECM har-
ness connector.

2.

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

Is the inspection result normal?

YES

>> GO TO 14.

NO

>> GO TO 13.

13.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors B4, M79
• Harness connectors M77, E105
• Harness connectors E8, F1
• Harness for open or short between EVAP control system pressure sensor and ECM

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

14.

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR

Refer to 

EC-284, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 15.

NO

>> Replace EVAP control system pressure sensor.

15.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-40, "Intermittent Incident"

.

>> INSPECTION END

EVAP control system pressure sen-

sor

ECM

Continuity

Connector

Terminal

Connector

Terminal

B21

1

F8

51

Existed

EVAP control system pressure sen-

sor

ECM

Continuity

Connector

Terminal

Connector

Terminal

B21

2

F8

42

Existed

EC-284

< DTC/CIRCUIT DIAGNOSIS >

[MR18DE]

P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR

Component Inspection

INFOID:0000000009947396

1.

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR

1.

Turn ignition switch OFF.

2.

Remove EVAP control system pressure sensor with its harness connector connected from EVAP canister.
Always replace O-ring with a new one.

3.

Install a vacuum pump to EVAP control system pressure sensor.

4.

Turn ignition switch ON and check output voltage between ECM harness connector and ground under the
following conditions.

CAUTION:

• Always calibrate the vacuum pump gauge when using it.
• Do not apply below -93.3 kPa (-0.952 kg/cm

2

, -13.53 psi) or pressure over 101.3 kPa (1.033 kg/

cm

2

, 14.69 psi).

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace EVAP control system pressure sensor

ECM

Condition

[Applied vacuum kPa (kg/cm

2

, psi)

Voltage

Connector

Terminal

F8

42 

(EVAP control system pressure 

sensor signal)

Not applied

1.8 - 4.8 V

-26.7 (-0.272, -3.87)

2.1 to 2.5 V lower than above value

P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR

EC-285

< DTC/CIRCUIT DIAGNOSIS >

[MR18DE]

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P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR

Description

INFOID:0000000009947397

The EVAP control system pressure sensor detects pressure in the
purge line. The sensor output voltage to the ECM increases as pres-
sure increases.

DTC Logic

INFOID:0000000009947398

DTC DETECTION LOGIC

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.
TESTING CONDITION:
Always perform test at a temperature of 5

°

C (41

°

F) or more.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

1.

Start engine and warm it up to normal operating temperature.

2.

Turn ignition switch OFF and wait at least 10 seconds.

3.

Turn ignition switch ON.

4.

Select “DATA MONITOR” mode with CONSULT.

5.

Make sure that “FUEL T/TMP SE” indication is more than 0

°

C (32

°

F).

6.

Start engine and wait at least 20 seconds.

7.

Check 1st trip DTC.

With GST

PBIB3370E

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0453

EVAP control system pres-
sure sensor high input

An excessively high voltage from the sensor 
is sent to ECM.

• Harness or connectors

(EVAP control system pressure sensor 
circuit is open or shorted.)
[Crankshaft position sensor (POS) circuit 
is shorted.]
(Accelerator pedal circuit is shorted.)
(Refrigerant pressure sensor circuit is 
shorted.)
(Battery current sensor circuit is shorted.)

• EVAP control system pressure sensor
• Crankshaft position sensor (POS)
• Accelerator pedal position sensor
• Refrigerant pressure sensor
• EVAP canister vent control valve
• EVAP canister
• Rubber hose from EVAP canister vent 

control valve to vehicle frame

• Battery current sensor