Nissan Frontier. Manual - part 433

P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR

EC-303

< DTC/CIRCUIT DIAGNOSIS >

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2. Check that voltage between ECM terminal 95 (Fuel tank temperature sensor signal) and ground is less

than 4.2V.

3. Turn ignition switch OFF and wait at least 10 seconds.

4. Start engine and wait at least 20 seconds.

5. Select Service $07 with GST.

6. Check 1st trip DTC.

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

EC-303, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009480967

1.

CHECK GROUND CONNECTIONS

1. Turn ignition switch OFF.

2. Loosen and retighten two ground screws on the body. Refer to 

EC-149, "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 that water is not inside connector.
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.

2. Check voltage between EVAP control system pressure sensor

terminal 3 and ground with CONSULT 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 for open or short between EVAP control system pressure sensor and ECM

BBIA0614E

ALBIA0514ZZ

Voltage: Approximately 5V

PBIB0138E

EC-304

< DTC/CIRCUIT DIAGNOSIS >

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P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR

>> Repair open circuit, 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

96.

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

>> Repair open circuit, 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 86 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 for open or short between EVAP control system pressure sensor and ECM

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

9.

CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR

Refer to 

EC-304, "Component Inspection"

.

OK or NG

OK

>> GO TO 10.

NG

>> Replace EVAP control system pressure sensor. Refer to 

FL-14, "Component Inspection"

.

10.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-42, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000009480968

EVAP CONTROL SYSTEM PRESSURE SENSOR

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

Continuity should exist.

Continuity should exist.

P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR

EC-305

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Always replace O-ring with a new one.

2. Install a vacuum pump to EVAP control system pressure sensor.
3. Turn ignition switch ON and check output voltage between ECM terminal 86 and ground under the follow-

ing conditions.

CAUTION:

• Always calibrate the vacuum pump gauge when using it.
• 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 inHg).

4. If NG, replace EVAP control system pressure sensor.

Applied vacuum kPa

(kg/cm

2

, psi)

Voltage (V)

Not applied

1.8 - 4.8

-26.7 (-200, -7.87)

2.1 to 2.5V lower than above value

EC-306

< DTC/CIRCUIT DIAGNOSIS >

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P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR

P0453 EVAP CONTROL SYSTEM PRESSURE SENSOR

Component Description

INFOID:0000000009480969

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:0000000009480970

NOTE:

If DTC P0453 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643. Refer to

EC-350

.

DTC Confirmation Procedure

INFOID:0000000009480971

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:

Always perform test at a temperature of 5

°C (41°F) or more.

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” is more than 0

°C (32°F).

6. Start engine and wait at least 20 seconds.

7. Check 1st trip DTC.

8. If 1st trip DTC is detected, go to 

EC-307, "Diagnosis Procedure"

.

ALBIA0514ZZ

PBIB3370E

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0453
0453

EVAP control system 
pressure sensor high in-
put

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
• Rubber hose to EVAP canister vent control 

valve