Nissan X-Trail 32. Manual — part 979
P0409 EGR VOLUME CONTROL VALVE POSITION SENSOR
EC-1045
< DTC/CIRCUIT DIAGNOSIS >
[R9M]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
YES
>> GO TO 4.
NO
>> Repair or replace error-detected parts.
4.
CHECK HIGH PRESSURE EGR VOLUME CONTROL VALVE POSITION SENSOR CIRCUIT FOR OPEN
AND SHORT
1.
Turn ignition switch OFF.
2.
Check high pressure EGR volume control valve position sensor circuit for open and short.
Is the inspection result normal?
YES
>> Replace High pressure EGR volume control valve.
NO
>> Repair or replace error-detected parts.
+
-
Continuity
ECM
High pressure EGR volume
control valve
Connector
Terminal
Connector
Terminal
F118
106
F156
6
Existed
108
4
110
5
EC-1046
< DTC/CIRCUIT DIAGNOSIS >
[R9M]
P0470 EXHAUST GAS PRESSURE SENSOR
P0470 EXHAUST GAS PRESSURE SENSOR
DTC Description
INFOID:0000000010935725
DTC DETECTION LOGIC
POSSIBLE CAUSE
Exhaust gas pressure sensor
FAIL-SAFE
• Boost pressure limitation
• EGR valve is closed position
• Throttle control motor is opened
• CCSL deactivation (considered as abnormal with dashboard message)
• Freeshift inhibited
• CSF regeneration forbidden
DTC CONFIRMATION PROCEDURE
1.
CHECK DTC PRIORITY
If DTC P0470 is displayed with DTC P0651 or P2263, first perform the trouble diagnosis for DTC P0651 or
P2263.
Is applicable DTC detected?
YES
>> Perform diagnosis of applicable. Refer to
.
NO
>> GO TO 2.
2.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 1 minute before conducting the next test.
>> GO TO 3.
3.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON and wait at least 5 second.
2.
Check DTC.
Is DTC detected?
YES
>> Proceed to
EC-1046, "Diagnosis Procedure"
.
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
.
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010935726
1.
CHECK DTC PRIORITY
If DTC P0470 is displayed with DTC P0651 or P2263, first perform the trouble diagnosis for DTC P0651 or
P2263.
Is applicable DTC detected?
YES
>> Perform diagnosis of applicable. Refer to
.
NO
>> GO TO 2.
2.
CHECK ECM HARNESS CONNECTOR CONNECTIONS
1.
Turn ignition switch OFF.
2.
Check ECM harness connector connection.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P0470
TBN UPSTR PRS SEN CIRC
(Exhaust pressure sensor “A” circuit)
• 1.DEF: VOLTAGE TOO LOW
• 2.DEF: VOLTAGE TOO HIGH
• An excessively low voltage from the sensor is sent to ECM.
• An excessively high voltage from the sensor is sent to ECM.
P0470 EXHAUST GAS PRESSURE SENSOR
EC-1047
< DTC/CIRCUIT DIAGNOSIS >
[R9M]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected parts.
3.
CHECK EXHAUST GAS PRESSURE SENSOR HARNESS CONNECTOR CONNECTIONS
Check exhaust gas pressure sensor harness connector connection.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace error-detected parts.
4.
CHECK EXHAUST GAS PRESSURE SENSOR POWER SUPPLY CIRCUIT
Check the power supply of the exhaust gas pressure sensor.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Perform trouble diagnosis for power supply circuit.
5.
CHECK EXHAUST GAS PRESSURE SENSOR CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Check exhaust gas pressure sensor circuit for open and short.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace error-detected parts.
6.
CHECK EXHAUST GAS PRESSURE SENSOR
EC-1048, "Component Inspection (Exhaust Gas Pressure Sensor)"
.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> Replace error-detected parts.
7.
DTC CONFIRMATION PROCEDURES
1.
Erase DTC.
2.
Perform DTC confirmation procedure again. Refer to
Is the DTC P0470 displayed again?
YES
>> GO TO 8.
NO
>> INSPECTION END
8.
CHECK TURBOCHARGER
Check turbocharger.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Repair or replace malfunctioning parts.
+
-
Voltage
(Approx.)
Exhaust gas pressure sensor
Connector
Terminal
F81
3
Ground
5 V
+
-
Continuity
ECM
Exhaust gas pressure sen-
sor
Connector
Terminal
Connector
Terminal
F118
104
F81
3
Existed
126
1
138
2
EC-1048
< DTC/CIRCUIT DIAGNOSIS >
[R9M]
P0470 EXHAUST GAS PRESSURE SENSOR
Component Inspection (Exhaust Gas Pressure Sensor)
INFOID:0000000010935727
1.
CHECK EXHAUST GAS PRESSURE SENSOR
1.
Disconnect exhaust gas pressure sensor harness connector.
2.
Check the resistance between exhaust gas pressure sensor terminals as follows.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace exhaust gas pressure sensor.
Exhaust gas pressure sensor
Resistance (Approx.)
+
-
Terminal
2
1
100 k
Ω
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