Nissan Frontier D22. Instruction — part 337
DTC P1400 EGRC-SOLENOID VALVE
EC-451
[KA24DE]
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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]
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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
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