Nissan Primera P11. Manual — part 172
CONSULT-II Reference Value in Data Monitor
Mode
NCEC0502
Specification data are reference values.
MONITOR ITEM
CONDITION
SPECIFICATION
EGR TEMP SEN
I
Engine: After warming up
Less than 4.5V
EGR VOL CON/V
I
Engine: After warming up
I
Air conditioner switch: “OFF”
I
Shift lever: “N”
I
No-load
Idle
0 step
Revving engine up to 3,000 rpm
quickly
10 - 55 step
ECM Terminals and Reference Value
NCEC0503
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.
TERMI-
NAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
8
9
17
18
W/B
SB
G/R
R/Y
EGR volume control valve
[Engine is running]
I
Warm-up condition
I
Rev engine up from 2,000 to 4,000 rpm
0 - 14V
58
B
Sensor’s ground
[Engine is running]
I
Warm-up condition
I
Idle speed
0V
72
PU
EGR temperature sensor
[Engine is running]
I
Warm-up condition
I
Idle speed
Less than 4.5V
[Engine is running]
I
Warm-up condition
I
EGR system is operating.
0 - 1V
On Board Diagnosis Logic
NCEC0228
If the absence of EGR flow is detected by EGR temperature sen-
sor under the condition that calls for EGR, a low-flow malfunction
is diagnosed.
DTC No.
Malfunction is detected when ...
Check Items (Possible Cause)
P0400
0400
I
No EGR flow is detected under conditions that call for
EGR.
I
Harness or connectors
(The valve circuit is open or shorted.)
I
EGR valve stuck closed
I
Dead (Weak) battery
I
EGR passage
I
EGR temperature sensor
I
Exhaust gas leaks
SEF073P
DTC P0400 EGR FUNCTION (CLOSE) (IF SO EQUIPPED)
QG16
I
18DE
CONSULT-II Reference Value in Data Monitor Mode
EC-245
DTC Confirmation Procedure
NCEC0229
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
I
If
“DTC
Confirmation
Procedure”
has
been
previously
conducted, always turn ignition switch “OFF” and wait at least
9 seconds before conducting the next test.
I
P0400 will not be displayed at “SELF-DIAG RESULTS” mode
with CONSULT-II even though DTC work support test result is
“NG”.
TESTING CONDITION:
I
Before performing the following procedure, confirm bat-
tery voltage is more than 10V at idle, then stop engine
immediately.
I
It will be better to perform the test at a temperature above
0°C (32°F).
With CONSULT-II
1)
Turn ignition switch “ON”.
2)
Check “COOLAN TEMP/S” in “DATA MONITOR” mode with
CONSULT-II and confirm it is within the range listed below.
COOLAN TEMP/S: Less than 40°C (104°F)
If the value is out of range, park the vehicle in a cool place and
allow the engine temperature to stabilize. Do not attempt to
lower the coolant temperature with a fan or means other than
ambient air. Doing so may produce an inaccurate diagnostic
result.
3)
Start engine and let it idle monitoring “COOLAN TEMP/S”
value. When the “COOLAN TEMP/S” value reaches 70°C
(158°F), immediately go to the next step.
4)
Select “EGR SYSTEM P0400” of “EGR SYSTEM” in “DTC
WORK SUPPORT” mode with CONSULT-II.
5)
Touch “START”.
6)
Accelerate vehicle to a speed of 40 km/h (25 MPH) once and
then stop vehicle with engine running.
If “COMPLETED” appears on CONSULT-II screen, go to step
8.
If “COMPLETED” does not appear on CONSULT-II screen, go
to the following step.
7)
When the following conditions are met, “TESTING” will be dis-
played on the CONSULT-II screen. Maintain the conditions
until “TESTING” changes to “COMPLETED”. (It will take
approximately 45 seconds or more.)
ENG SPEED
Above 2,400 rpm
Vehicle speed
Above 90 km/h (56 MPH)
B/FUEL SCHDL
4.0 - 8.0 msec
Selector lever
4th or 5th
If “TESTING” is not displayed after 5 minutes, retry from
step 2.
8)
Make sure that “OK” is displayed after touching “SELF-DIAG
RESULTS”.
If
“NG”
is
displayed,
refer
to
“Diagnostic
Procedure”, EC-QG-249.
With GST
1)
Turn ignition switch “ON”.
NEF107A
NEF108A
PEF785UA
DTC P0400 EGR FUNCTION (CLOSE) (IF SO EQUIPPED)
QG16
I
18DE
DTC Confirmation Procedure
EC-246
2)
Check engine coolant temperature in MODE 1 with GST.
Engine coolant temperature: Less than 40°C (104°F)
If the value is out of range, park the vehicle in a cool place and
allow the engine temperature to stabilize. Do not attempt to
lower the coolant temperature with a fan or means other than
ambient air. Doing so may produce an inaccurate diagnostic
result.
3)
Start engine and let it idle monitoring the value of “COOLAN
TEMP/S”. When the engine coolant temperature reaches 70°C
(158°F), immediately go to the next step.
4)
Maintain the following conditions for at least 1 minute.
Engine speed
Above 2,400 rpm
Vehicle speed
Above 90 km/h (56 MPH)
Selector lever
4th or 5th
5)
Stop vehicle.
6)
Turn ignition switch “OFF” and wait at least 9 seconds, then
turn “ON”.
7)
Repeat step 2 to 4.
8)
Select “MODE 3” with GST.
9)
If DTC is detected, go to “Diagnostic Procedure”, EC-QG-249.
I
When using GST, “DTC CONFIRMATION PROCEDURE”
should be performed twice as much as when using CON-
SULT-II or ECM (Diagnostic Test Mode II) because GST
cannot display MODE 7 (1st trip DTC) concerning this
diagnosis. Therefore, using CONSULT-II or ECM (Diagnos-
tic Test Mode II) is recommended.
DTC P0400 EGR FUNCTION (CLOSE) (IF SO EQUIPPED)
QG16
I
18DE
DTC Confirmation Procedure (Cont’d)
EC-247
Wiring Diagram
NCEC0231
YEC072A
DTC P0400 EGR FUNCTION (CLOSE) (IF SO EQUIPPED)
QG16
I
18DE
Wiring Diagram
EC-248
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