Nissan Qashqai J11. Manual — part 412
ECK-208
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
P018C FUEL PRESSURE SENSOR
5.
CHECK FUEL RAIL PRESSURE SENSOR CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Check fuel rail pressure sensor circuit for open and short.
Is the inspection result normal?
YES
>> Replace fuel rail pressure sensor.
NO
>> Repair or replace error-detected parts.
+
-
Continuity
ECM
Fuel rail pressure sensor
Connector
Terminal
Connector
Terminal
F80
45
F40
3
Existed
68
2
72
1
P0190 FRP SENSOR
ECK-209
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
ECK
N
P
O
P0190 FRP SENSOR
DTC Logic
INFOID:0000000010289793
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PERFORM DIAGNOSIS PROCEDURE
NOTE:
DTC P0190 can not duplicate.
>> Proceed to
ECK-209, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000010289794
1.
CHECK ECM HARNESS CONNECTOR CONNECTIONS
1.
Turn ignition switch OFF.
2.
Check ECM harness connector connection F80.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace error-detected parts.
2.
CHECK FUEL RAIL PRESSURE SENSOR HARNESS CONNECTOR CONNECTIONS
Check fuel rail pressure sensor harness connector connection F40.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected parts.
3.
CHECK FUEL PIPING
Check fuel hoses and fuel tubes for clogging.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace error-detected parts.
4.
CHECK FUEL RAIL PRESSURE SENSOR POWER SUPPLY CIRCUIT
1.
Turn ignition switch ON.
2.
Check the power supply of the fuel rail pressure sensor.
Is the inspection result normal?
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0190
RAIL PRESSURE SENSOR CIR-
CUIT
(Fuel rail pressure sensor “A” circuit)
• 1.DEF: VOLTAGE TOO LOW
• 2.DEF: VOLTAGE TOO HIGH
• 3.DEF: ABOVE THE MAX LEVEL
• 4.DEF: SIGNAL INCOHERENCE
• 5.DEF: INTERMITTENT SIGNAL
INCOHERENCE
• An excessively low voltage from the
sensor is sent to ECM.
• An excessively high voltage from the
sensor is sent to ECM.
• An improper voltage signal from sen-
sor is sent to ECM.
• Harness or connectors
(Fuel rail pressure sensor circuit is
open or shorted.)
• Fuel rail pressure sensor
• ECM
+
-
Voltage
(Approx.)
Fuel rail pressure sensor
Connector
Terminal
F40
3
Ground
5.0 V
ECK-210
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
P0190 FRP SENSOR
YES
>> GO TO 5.
NO
>> Perform trouble diagnosis for power supply circuit.
5.
CHECK FUEL RAIL PRESSURE SENSOR CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Check fuel rail pressure sensor circuit for open and short.
Is the inspection result normal?
YES
>> Replace fuel rail pressure sensor.
NO
>> Repair or replace error-detected parts.
+
-
Continuity
ECM
Fuel rail pressure sensor
Connector
Terminal
Connector
Terminal
F80
45
F40
3
Existed
68
2
72
1
P0200 FUEL INJECTOR
ECK-211
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
ECK
N
P
O
P0200 FUEL INJECTOR
DTC Logic
INFOID:0000000010289795
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
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 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Start engine and let it idle for at least 1 second.
2.
Check DTC.
Is DTC detected?
YES
>>
ECK-211, "Diagnosis Procedure"
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010289796
1.
CHECK FUEL RETURN HOSE
Check Fuel return hose.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace error-detected parts.
2.
CHECK FUEL INJECTOR CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Check fuel injector circuit for open and short.
Is the inspection result normal?
YES
>> GO TO 3.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible Cause
P0200
INJECTOR CONTROL
CIRCUIT
(Injector circuit/open)
• 1.DEF: VALUES OUT-
SIDE TOLERANCES
• ECM detects fuel injectors circuit malfunction.
• Injector code is not stored into ECM.
• Harness or connectors
• Injector code error
Cylinder
+
-
Continuity
ECM
Fuel injector
Connector
Terminal
Connector
Terminal
No.1
F81
156
F155
1
Existed
160
2
No.2
153
F156
1
157
2
No.3
155
F157
1
159
2
No.4
154
F158
1
158
2
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