Nissan Frontier D40. Manual - part 505

 

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Nissan Frontier D40. Manual - part 505

 

 

P0451 EVAP CONTROL SYSTEM PRESSURE SENSOR

EC-711

< COMPONENT DIAGNOSIS >

[VQ40DE]

C

D

E

F

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EC

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• Never 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).

4.

If NG, replace EVAP control system pressure sensor.

EC-712

< COMPONENT DIAGNOSIS >

[VQ40DE]

P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR

P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR

Component Description

INFOID:0000000005273683

The EVAP control system pressure sensor (2) detects pressure in
the purge line. The sensor output voltage to the ECM increases as
pressure increases.
• EVAP canister vent control valve (1)
• Drain filter (3)
• EVAP canister (4)
•

: Vehicle front

On Board Diagnosis Logic

INFOID:0000000005273684

If DTC P0452 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to

EC-758

.

DTC Confirmation Procedure

INFOID:0000000005273685

NOTE:
If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing the next step.
1.

Turn ignition switch OFF and wait at least 10 seconds.

2.

Turn ignition switch ON.

3.

Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Always perform test at a temperature of 5

°

C (41

°

F) or more.

 WITH CONSULT-III

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.

Turn ignition switch OFF and wait at least 10 seconds and then turn ON.

5.

Select “DATA MONITOR” mode with CONSULT-III.

6.

Check that “FUEL T/TMP SE” is more than 0

°

C (32

°

F).

7.

Start engine and wait at least 20 seconds.

8.

Check 1st trip DTC.

ALBIA0514ZZ

PBIB3370E

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0452
0452

EVAP control system 
pressure sensor low in-
put

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

• Harness or connectors

(The sensor circuit is open or shorted.)

• EVAP control system pressure sensor

P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR

EC-713

< COMPONENT DIAGNOSIS >

[VQ40DE]

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9.

If 1st trip DTC is detected, go to 

EC-713, "Diagnosis Procedure"

.

 WITH GST

1.

Start engine and warm it up to normal operating temperature.

2.

Check that voltage between ECM terminal 107 (Fuel tank tem-
perature sensor signal) and ground is less than 4.2V.

3.

Turn ignition switch OFF and wait at least 10 seconds.

4.

Turn ignition switch ON.

5.

Turn ignition switch OFF and wait at least 10 seconds.

6.

Start engine and wait at least 20 seconds.

7.

Select Service $07 with GST.
If 1st trip DTC is detected, go to 

EC-713, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005273686

1.

CHECK GROUND CONNECTIONS

1.

Turn ignition switch OFF.

2.

Loosen and retighten three ground screws on the body. Refer to 

EC-549, "Ground Inspection"

.

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace ground connections.

2.

CHECK CONNECTOR

1.

Disconnect EVAP control system pressure sensor (2) harness
connector.

-

EVAP canister vent control valve (1)

-

Drain filter (3)

-

EVAP canister (4)

-

: Vehicle front

2.

Check sensor harness connector for water.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness connector.

3.

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR POWER SUPPLY CIRCUIT

1.

Turn ignition switch ON.

PBIB1110E

BBIA0539E

Water should not exist.

ALBIA0514ZZ

EC-714

< COMPONENT DIAGNOSIS >

[VQ40DE]

P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR

2.

Check voltage between EVAP control system pressure sensor
terminal 3 and ground with CONSULT-III or tester.

OK or NG

OK

>> GO TO 5.

NG

>> GO TO 4.

4.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors C1, E41
• Harness connectors E5, F14
• 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.

5.

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check harness continuity between EVAP control system pressure sensor terminal 1 and ECM terminal
67.
Refer to Wiring Diagram.

4.

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

OK or NG

OK

>> GO TO 7.

NG

>> GO TO 6.

6.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors C1, E41
• Harness connectors E5, F14
• 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.

7.

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

SHORT

1.

Check harness continuity between ECM terminal 32 and EVAP control system pressure sensor terminal
2.
Refer to Wiring Diagram.

2.

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

OK or NG

OK

>> GO TO 9.

NG

>> GO TO 8.

8.

DETECT MALFUNCTIONING PART

Check the following.
• Harness connectors C1, E41
• Harness connectors E5, F14

Voltage: Approximately 5V

PBIB0138E

Continuity should exist.

Continuity should exist.

 

 

 

 

 

 

 

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