Nissan Frontier D22. Manual - part 309

DTC P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR

EC-339

[KA24DE]

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DTC Confirmation Procedure

UBS00D7V

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 above 5

°C (41°F).

●

 Before performing the following procedure, confirm battery voltage is more than 11V at idle.

 WITH CONSULT-II

1.

Start engine and warm it up to normal operating temperature.

2.

Turn ignition switch OFF and wait at least 5 seconds.

3.

Turn ignition switch ON.

4.

Select “DATA MONITOR” mode with CONSULT-II.

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.

If 1st trip DTC is detected, go to 

EC-341, "Diagnostic Procedure"

.

 WITH GST

1.

Start engine and warm it up to normal operating temperature.

2.

Check that voltage between ECM terminal 60 (Fuel tank temper-
ature sensor signal) and ground is less than 4.2V.

3.

Turn ignition switch OFF and wait at least 5 seconds.

4.

Start engine and wait at least 20 seconds.

5.

Select “MODE 7” with GST.

6.

If 1st trip DTC is detected, go to 

EC-341, "Diagnostic Procedure"

.

SEF194Y

SEF196V

EC-340

[KA24DE]

DTC P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR

Wiring Diagram

UBS00D7W

BBWA1063E

DTC P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR

EC-341

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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 ECM terminals, such as the ground.

Diagnostic Procedure

UBS00D7X

1. 

CHECK RUBBER TUBE CONNECTED TO THE SENSOR

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.

Turn ignition switch OFF.

2.

Loosen and retighten engine ground screws.

>> GO TO 3.

3. 

CHECK HARNESS CONNECTOR

1.

Disconnect EVAP control system pressure sensor harness con-
nector.

2.

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

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness connector.

TER-

MINAL 

NO.

WIRE 

COLO

R

ITEM

CONDITION

DATA (DC Voltage)

42

BR

Sensor power supply

[Ignition switch: ON]

Approximately 5V

43

B/W

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

BBIA0431E

SEF341V

EC-342

[KA24DE]

DTC P0452 EVAP CONTROL SYSTEM PRESSURE SENSOR

4. 

CHECK POWER SUPPLY

1.

Turn ignition switch ON.

2.

Check voltage between terminal 3 and engine ground with CON-
SULT-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 M59, F27

●

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

>> Repair harness or connectors.

6. 

CHECK GROUND CIRCUIT

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 M81, F36

●

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

SEF410Q

Continuity should exist.