Nissan Qashqai J11. Manual — part 436
ECK-304
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
P1483 EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR
P1483 EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR
DTC Logic
INFOID:0000000010289931
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.
Turn ignition switch ON and wait at least 1 second.
2.
Check DTC.
Is DTC detected?
YES
>> Proceed to
ECK-304, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010289932
1.
CHECK ECM HARNESS CONNECTOR CONNECTIONS
1.
Turn ignition switch OFF.
2.
Check ECM harness connector connection.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace error-detected parts.
2.
CHECK EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR HARNESS CONNECTOR CONNEC-
TIONS
Check exhaust electric throttle control actuator harness connector connection.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected parts.
3.
CHECK EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR POWER SUPPLY CIRCUIT
Check the power supply of the exhaust electric throttle control actuator.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P1483
EXHAUST AIR FLAP POSI-
TION SENSOR CIRCUIT
(Exhaust air flap position sen-
sor circuit)
• 1.DEF: OFFSET IMPLAU-
SIBLE
ECM detects the exhaust throttle valve regulation er-
ror.
• Harness and connectors
(Exhaust throttle valve position
sensor circuit is open or short-
ed.)
• Exhaust throttle valve stuck
• Exhaust electric throttle control
actuator
• Exhaust throttle valve position
sensor
+
-
Voltage
Exhaust electric throttle control ac-
tuator
Connector
Terminal
F59
5
Ground
Battery voltage
P1483 EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR
ECK-305
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
ECK
N
P
O
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Perform trouble diagnosis for power supply circuit.
4.
CHECK EXHAUST THROTTLE CONTROL ACTUATOR CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Check exhaust electric throttle control actuator circuit for open and short.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace error-detected parts.
5.
CHECK EXHAUST THROTTLE POSITION SENSOR
ECK-305, "Component Inspection (Exhaust Throttle Position Sensor)"
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-41, "Intermittent Incident"
.
NO
>> GO TO 6.
6.
REPLACE EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR
1.
Replace exhaust electric throttle control actuator.
2.
>> INSPECTION END
Component Inspection (Exhaust Throttle Position Sensor)
INFOID:0000000010289933
1.
CHECK EXHAUST THROTTLE POSITION SENSOR
1.
Turn ignition switch ON.
2.
Check the voltage between ECM terminals as follows.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace exhaust electric throttle control actuator.
+
+
Continuity
ECM
Exhaust electric throttle
control actuator
Connector
Terminal
Connector
Terminal
F80
57
F59
1
Existed
62
2
76
3
F81
149
6
150
5
ECM
Voltage
+
-
Terminal
76
62
0.2 – 4.8 V
ECK-306
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
P1484 LOW PRESSURE EGR VOLUME CONTROL VALVE
P1484 LOW PRESSURE EGR VOLUME CONTROL VALVE
DTC Logic
INFOID:0000000010289934
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.
2.
Maintain the following conditions for at least 10 consecutive seconds. Hold the steady as possible.
3.
Check DTC.
Is DTC detected?
YES
>> Proceed to
ECK-306, "Diagnosis Procedure"
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010289935
1.
CHECK LOW PRESSURE EGR VOLUME CONTROL VALVE
Visually check low pressure EGR volume control valve for chipping.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace error-detected parts.
2.
CHECK DIESEL PARTICULATE FILTER
ECK-359, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Replace diesel particulate filter.
3.
CHECK ECM HARNESS CONNECTOR CONNECTIONS
Check ECM harness connector connection.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace error-detected parts.
4.
CHECK LOW PRESSURE EGR VOLUME CONTROL VALVE HARNESS CONNECTOR CONNECTIONS
Check low pressure EGR volume control valve harness connector connection.
Is the inspection result normal?
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P1484
HIGH PRESSURE EGR
VALVE
(High pressure EGR valve)
• 1.DEF: MECHANICAL
FAULT
ECM detects an incorrect closed position of the low
pressure EGR volume control valve.
• Low pressure EGR volume
control valve clogged
• Low pressure EGR volume
control valve stuck
• Low pressure EGR volume
control valve
ENGINE SPEED
3,500 rpm
P1484 LOW PRESSURE EGR VOLUME CONTROL VALVE
ECK-307
< DTC/CIRCUIT DIAGNOSIS >
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
ECK
N
P
O
YES
>> GO TO 5.
NO
>> Repair or replace error-detected parts.
5.
CHECK LOW PRESSURE EGR VOLUME CONTROL VALVE CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Check low pressure EGR volume control valve circuit for open and short.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace error-detected parts.
6.
DTC CONFIRMATION PROCEDURE
1.
Erase DTC.
2.
Perform DTC confirmation procedure again. Refer to
Is the DTC P1484 displayed again?
YES
>> GO TO 7.
NO
>> Check intermittent incident. Refer to
GI-41, "Intermittent Incident"
.
7.
CHECK LOW PRESSURE EGR VOLUME CONTROL VALVE MOTOR
ECK-307, "Component Inspection (Low Pressure EGR Volume Control Valve Motor)"
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-41, "Intermittent Incident"
.
NO
>> Replace error-detected parts.
Component Inspection (Low Pressure EGR Volume Control Valve Motor)
INFOID:0000000010289936
1.
CHECK LOW PRESSURE EGR VOLUME CONTROL VALVE MOTOR
1.
Turn ignition switch OFF.
2.
Disconnect low pressure EGR volume control valve harness connector.
3.
Check resistance between low pressure EGR volume control valve terminals as follows.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace low pressure EGR volume control valve.
+
-
Continuity
ECM
Low pressure EGR volume
control valve
Connector
Terminal
Connector
Terminal
F80
65
F34
1
Existed
66
2
79
3
F81
151
6
152
5
Low pressure EGR volume control valve
Condition
Resistance
+
-
Terminal
5
6
Temperature
°
C (
°
F)
20 (68)
1.69
Ω
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