Nissan Frontier D22. Manual - part 337

DTC P1400 EGRC-SOLENOID VALVE

EC-451

[KA24DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

DTC P1400 EGRC-SOLENOID VALVE

PFP:14956

Component Description

UBS00DAV

The EGRC solenoid valve responds to signals from the ECM. When
the ECM sends an OFF signal, the vacuum signal passes through
the solenoid valve. The signal then reaches the EGR valve.
When the ECM sends an ON signal, a plunger will then move to cut
the vacuum signal from the throttle body to the EGR valve.

CONSULT-II Reference Value in Data Monitor Mode

UBS00DAW

Specification data are reference values.

On Board Diagnosis Logic

UBS00DAX

DTC Confirmation Procedure

UBS00DAY

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 at a temperature above –10

°C (14°F).

 WITH CONSULT-II

1.

Start engine and warm it up to normal operating temperature.

2.

Select “DATA MONITOR” mode with CONSULT-II.

SEF240PD

MONITOR ITEM

CONDITION

SPECIFICATION

EGRC SOL/V

●

Engine: After warming up

●

Air conditioner switch: OFF

●

Shift lever: P or N 

●

No-load

Idle

ON

Rev engine up from idle to 3,000 
rpm quickly.

OFF

DTC No.

Trouble Diagnosis Name

DTC Detecting Condition

Possible Cause

P1400

EGRC solenoid valve circuit

The improper voltage signal is sent to 
ECM through EGRC solenoid valve.

●

Harness or connectors
(The EGRC solenoid valve circuit is open 
or shorted.)

●

EGRC solenoid valve

SEF174Y

EC-452

[KA24DE]

DTC P1400 EGRC-SOLENOID VALVE

3.

Maintain the following conditions for at least 5 consecutive sec-
onds.

4.

If 1st trip DTC is detected, go to 

EC-454, "Diagnostic Procedure"

.

Overall Function Check

UBS00DAZ

Use this procedure to check the overall function of the EGR temperature sensor. During this check, a 1st trip
DTC might not be confirmed.

 WITH GST

1.

Start engine and warm it up to normal operating temperature.

2.

Check the voltage between ECM terminal 103 and ground at
idle.

3.

Check that the voltage changes to battery voltage and returns to
0 - 1V when revving the engine from idle to 3,000 rpm quickly.

4.

If NG, go to 

EC-454, "Diagnostic Procedure"

 .

ENG SPEED

Less than 3,000 rpm

B/FUEL SCHDL

Less than 12.6 msec

VHCL SPEED SE

Suitable speed

SEF201Y

Voltage

: 0 - 1V

SEF242V

DTC P1400 EGRC-SOLENOID VALVE

EC-453

[KA24DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

Wiring Diagram

UBS00DB0

BBWA0452E

EC-454

[KA24DE]

DTC P1400 EGRC-SOLENOID VALVE

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

UBS00DB1

1. 

CHECK EGRC SOLENOID VALVE

 With CONSULT-II

1.

Turn ignition switch ON.

2.

Turn EGRC solenoid valve “ON” and “OFF” in “ACTIVE TEST”
mode with CONSULT-II and check operating sound.

 Without CONSULT-II

1.

Start engine and rev engine up to 3,000 rpm quickly.

2.

When disconnecting and reconnecting the EGRC solenoid valve harness connector, make sure that the
EGRC solenoid valve makes operating sound. (The DTC or the 1st trip DTC for the EGRC solenoid valve
will be displayed, however, ignore it.)

OK or NG

OK (With CONSULT-II)>>GO TO 6.
OK (Without CONSULT-II)>>GO TO 7.
NG

>> GO TO 2

TER-

MINAL 

NO.

WIRE 

COLOR

ITEM

CONDITION

DATA (DC Voltage)

103

G/W

EGRC-solenoid valve

[Engine is running]

●

Warm-up condition

●

Idle speed

BATTERY VOLTAGE
(11 - 14V)

[Engine is running]

●

Warm-up condition

●

Lift up the vehicle

●

Shift lever: D (A/T), 1st (M/T)

●

Revving engine from idle to 3,000 rpm quickly

0 - 1V

SEF722Z