Nissan Frontier D22. Manual - part 606

DTC P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR

EC-1527

[VG33ER]

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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 the ECM terminals, such as the ground.

Diagnostic Procedure

UBS00DY4

1. 

CHECK RUBBER TUBE

1.

Turn ignition switch OFF.

2.

Check rubber tube connected to the sensor for clogging, vent,
kink, disconnection or improper connection.

OK or NG

OK

>> GO TO 2.

NG

>> Reconnect, repair or replace.

2. 

RETIGHTEN GROUND SCREWS

1.

Loosen and retighten engine ground screws.

>> GO TO 3.

3. 

 CHECK CONNECTOR

1.

Disconnect EVAP control system pressure sensor harness connector.

2.

Check sensor harness connector for water.
Water should not exist.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness connector.

TERMI-

NAL 

NO.

WIRE 

COLOR

ITEM

CONDITION 

DATA (DC Voltage)

42

B/W

Sensor power supply

[Ignition switch: ON]

Approximately 5V

43

BR

Sensor ground

[Engine is running]

●

Warm-up condition

●

Idle speed

Approximately 0V

62

Y

EVAP control system pres-
sure sensor

[Ignition switch: ON]

1.8 - 4.8V

AEC651A

BBIA0418E

EC-1528

[VG33ER]

DTC P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR

4. 

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch ON.

2.

Check voltage between terminal 3 and ground with CONSULT-II
or tester.

OK or NG

OK

>> GO TO 6.

NG

>> GO TO 5.

5. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors C1, M67

●

Harness connectors M81, F36

●

Harness for open or short between EVAP control system pressure sensor and ECM

>> Repair harness or connectors.

6. 

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND 

SHORT

1.

Turn ignition switch OFF.

2.

Check harness continuity between EVAP control system pressure sensor terminal 1 and engine ground.
Refer to Wiring Diagram.

3.

Also check harness for short to power.

OK or NG

OK >> GO 

TO 

8.

NG

>> GO TO 7.

7. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors C1, M67

●

Harness connectors M59, F27

●

Harness for open or short between EVAP control system pressure sensor and ECM

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

Voltage: Approximately 5V

SEF889U

Continuity should exist.

DTC P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR

EC-1529

[VG33ER]

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EC

8. 

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

SHORT

1.

Disconnect ECM harness connector.

2.

Check harness continuity between ECM terminal 62 and EVAP control system pressure sensor terminal
2.
Refer to Wiring Diagram.

3.

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

OK or NG

OK

>> GO TO 10.

NG

>> GO TO 9.

9. 

DETECT MALFUNCTIONING PART

Check the following.

●

Harness connectors C1, M67

●

Harness connectors M59, F27

●

Harness for open or short between ECM and EVAP control system pressure sensor

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

10. 

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR

1.

Remove EVAP control system pressure sensor with its harness connector connected.

2.

Remove hose from EVAP control system pressure sensor.

3.

Turn ignition switch ON.

4.

Use pump to apply vacuum and pressure to EVAP control system pressure sensor as shown in figure.

5.

Check input voltage between ECM terminal 62 and ground.

CAUTION:

●

Always calibrate the vacuum pump gauge when using it.

●

Do not apply below 

−93.3 kPa (−700 mmHg, −27.56 inHg) or

over 101.3 kPa (760 mmHg, 29.92 inHg) of pressure.

OK or NG

OK

>> GO TO 14.

NG

>> Replace EVAP control system pressure sensor.

11. 

CHECK INTERMITTENT INCIDENT

Refer to 

EC-1297, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

 .

>> INSPECTION END.

Continuity should exist.

Applied vacuum

Voltage V

Not applied

1.8 - 4.8

−26.7 kpa (−200 mmHg, −7.87 inHg)

2.1 to 2.5 V lower than above value

PBIB1426E

EC-1530

[VG33ER]

DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR

DTC P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR

PFP:25085

Component Description

UBS00DY5

The EVAP control system pressure sensor detects pressure in the
purge line. The sensor output voltage to the ECM increases as pres-
sure increases. The EVAP control system pressure sensor is not
used to control the engine system. It is used only for on board diag-
nosis.

CONSULT-II Reference Value in Data Monitor Mode

UBS00DY6

Specification data are reference values.

On Board Diagnosis Logic

UBS00DY7

DTC Confirmation Procedure

UBS00DY8

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:
Always perform test at a temperature of 5

°C (41°F) or more.

 WITH CONSULT-II

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.

SEF340V

PBIB1207E

MONITOR ITEM

CONDITION

SPECIFICATION

EVAP SYS PRES

●

Ignition switch: ON

 1.8 - 4.8V

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0453

EVAP control system 
pressure sensor high 
input

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

●

Harness or connectors
(The sensor circuit is open or shorted.)

●

EVAP control system pressure sensor

●

EVAP canister vent control valve

●

EVAP canister

●

Water separator

●

Rubber hose from EVAP canister vent 
control valve to water separator