Nissan Primera P11. Instruction — part 186
PROCEDURE FOR MALFUNCTION A
=NCEC0344S01
With CONSULT-II
1)
Turn ignition switch “ON”.
2)
Select “DATA MONITOR” mode with CONSULT-II.
3)
Verify that engine coolant temperature is less than 50°C
(122°F).
If the engine coolant temperature is above the range, cool
the engine down.
4)
Start engine and let it idle for at least 5 seconds.
5)
If 1st trip DTC is detected, go to “Diagnostic Procedure”, EC-
QG-303.
With GST
Follow the procedure “With CONSULT-II” above.
PROCEDURE FOR MALFUNCTION B
NCEC0344S02
CAUTION:
Always drive vehicle at a safe speed.
TESTING CONDITION:
Always perform the test at a temperature above −10°C (14°F).
With CONSULT-II
1)
Start engine and warm it up to above 80°C (176°F).
2)
Select “EGR VOL CONT/V” in “ACTIVE TEST” mode with
CONSULT.
3)
Hold engine speed at 1,500 rpm.
4)
Touch “Qu” and set the EGR volume control valve opening to
50 step and check EGR TEMP SEN.
EGR TEMP SEN should decrease to less than 1.0V.
If the check result is NG, go to “Diagnostic Procedure”, EC-
QG-303.
If the check result is OK, go to the following step.
5)
Turn ignition switch “OFF” and wait at least 9 seconds.
6)
Start engine and maintain the following conditions for at least
5 consecutive seconds.
ENG SPEED
Above 2,400 rpm
VHCL SPEED SE
Above 90 km/h (56 MPH) or more
B/FUEL SCHDL
4.0 - 4.8 msec
Selector lever
4th or 5th
7)
If 1st trip DTC is detected, go to “Diagnostic Procedure”, EC-
QG-303.
With GST
Follow the procedure “With CONSULT-II” above.
NEF113A
NEF114A
DTC P1401 EGR TEMPERATURE SENSOR
(IF SO EQUIPPED)
QG16
I
18DE
DTC Confirmation Procedure (Cont’d)
EC-301
Wiring Diagram
NCEC0346
YEC074A
DTC P1401 EGR TEMPERATURE SENSOR
(IF SO EQUIPPED)
QG16
I
18DE
Wiring Diagram
EC-302
Diagnostic Procedure
NCEC0347
1
CHECK POWER SUPPLY
1. Turn ignition switch “OFF”.
2. Disconnect EGR temperature sensor harness connector.
SEF127X
3. Turn ignition switch “ON”.
4. Check voltage between terminal 2 and ground with CONSULT-II or tester.
SEF128X
Voltage: Approximately 5V
OK or NG
OK
©
GO TO 2.
NG
©
Repair harness or connectors.
2
CHECK GROUND CIRCUIT
1. Turn ignition switch “OFF”.
2. Check harness continuity between EGR temperature sensor harness terminal 1 and engine ground. Refer to wiring diagram.
Continuity should exist.
3. Also check harness for short to ground and short to power.
OK or NG
OK
©
GO TO 4.
NG
©
GO TO 3.
3
DETECT MALFUNCTIONING PART
Check the harness for open or short between EGR temperature sensor and ECM.
©
Repair open circuit or short to ground or short to power in harness or connector.
4
CHECK EGR TEMPERATURE SENSOR
Refer to “Component Inspection”, EC-QG-304.
OK or NG
OK
©
GO TO 5.
NG
©
Replace EGR temperature sensor.
DTC P1401 EGR TEMPERATURE SENSOR
(IF SO EQUIPPED)
QG16
I
18DE
Diagnostic Procedure
EC-303
5
CHECK EGR VOLUME CONTROL VALVE
Refer to “Component Inspection”, EC-QG-251.
OK or NG
OK
©
GO TO 6.
NG
©
Replace EGR volume control valve.
6
CHECK INTERMITTENT INCIDENT
Perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-QG-102.
©
INSPECTION END
Component Inspection
NCEC0348
EGR TEMPERATURE SENSOR
NCEC0348S01
Check resistance change and resistance value.
<Reference data>
EGR temperature
°C (°F)
Voltage
V
Resistance
M
Ω
0 (32)
4.56
0.62 - 1.05
50 (122)
2.25
0.065 - 0.094
100 (212)
0.59
0.011 - 0.015
If NG, replace EGR temperature sensor.
SEF643Q
SEF068X
DTC P1401 EGR TEMPERATURE SENSOR
(IF SO EQUIPPED)
QG16
I
18DE
Diagnostic Procedure (Cont’d)
EC-304
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