Nissan Juke F15. Instruction — part 546
P044B EXHAUST GAS RECIRCULATION SYSTEM
EC-997
< DTC/CIRCUIT DIAGNOSIS >
[MR EXCEPT FOR NISMO RS MODELS]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 5.
2.
CHECK EGR VOLUME CONTROL VALVE POSITION SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness continuity between EGR volume control valve harness connector and ECM harness con-
nector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected parts.
3.
CHECK EGR VOLUME CONTROL VALVE POSITION SENSOR INPUT SIGNAL CIRCUIT
1. Check harness continuity between EGR volume control valve harness connector and ECM harness con-
nector.
2. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace error-detected parts.
4.
CHECK EGR VOLUME CONTROL VALVE
Check the EGR volume control valve. Refer to
EC-961, "Component Inspection (EGR Volume Control Valve)"
.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-45, "Intermittent Incident"
.
NO
>> Replace EGR volume control valve. Refer to
EC-600, "ENGINE CONTROL SYSTEM :
.
5.
CHECK EGR VOLUME CONTROL VALVE POSITION SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between EGR volume control valve harness connector and ECM harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> Perform the trouble diagnosis for ECM power supply circuit. Refer to
.
NO
>> Repair or replace error-detected parts.
+
−
Continuity
EGR volume control valve
ECM
Connector
Terminal
Connector
Terminal
F74
5
F23
43
Existed
+
−
Continuity
EGR volume control valve
ECM
Connector
Terminal
Connector
Terminal
F74
4
F24
68
Existed
+
−
Continuity
EGR volume control valve
ECM
Connector
Terminal
Connector
Terminal
F74
3
F23
30
Existed
EC-998
< DTC/CIRCUIT DIAGNOSIS >
[MR EXCEPT FOR NISMO RS MODELS]
P044B EXHAUST GAS RECIRCULATION SYSTEM
Component Inspection (EGR Volume Control Valve)
INFOID:0000000012198490
1.
CHECK EGR VOLUME CONTROL VALVE-1
With CONSULT
1. Turn ignition switch ON and engine stopped.
2. On the CONSULT screen, select “ENGINE” >> “ACTIVE TEST” >> “EGR CONTROL VALVE”.
3. Operate “Up” or “Down”, set “EGR VALVE POSITION” to 0 deg, and check value of “EGR VALVE POSI-
TION SEN”.
Does value become 1.2
±0.15 V?
YES
>> GO TO 2.
NO
>> Replace EGR volume control valve. Refer to
EM-239, "Removal and Installation"
.
2.
CHECK EGR VOLUME CONTROL VALVE-2
With CONSULT
1. Operate “Up” or “Down”, set “EGR VALVE POSITION” to 70 deg, and check value of “EGR VALVE POSI-
TION SEN”.
Does value become 4.0
±0.15 V?
YES
>> INSPECTION END
NO
>> Replace EGR volume control valve. Refer to
EM-239, "Removal and Installation"
.
P044C, P044D EGR VOLUME CONTROL VALVE POSITION SENSOR
EC-999
< DTC/CIRCUIT DIAGNOSIS >
[MR EXCEPT FOR NISMO RS MODELS]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
P044C, P044D EGR VOLUME CONTROL VALVE POSITION SENSOR
DTC Logic
INFOID:0000000012198491
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON and wait at least 5 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Proceed to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000012198492
1.
CHECK EGR VOLUME CONTROL VALVE POSITION SENSOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect EGR volume control valve harness connector.
3. Turn ignition switch ON.
4. Check voltage between EGR volume control valve harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> GO TO 5.
2.
CHECK EGR VOLUME CONTROL VALVE POSITION SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
DTC No.
Trouble diagnosis name
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P044C
EGR SENSOR C
(EGR sensor C circuit low)
ECM detects the following status continuously
for 5 seconds or more:
A voltage signal transmitted from the EGR vol-
ume control valve position sensor is 0.32 V or
less.
• Harness or connectors
(EGR volume control valve position
sensor circuit is open or shorted.)
• EGR volume control valve
P044D
EGR SENSOR C
(EGR sensor C circuit high)
ECM detects the following status continuously
for 5 seconds or more:
A voltage signal transmitted from the EGR vol-
ume control valve position sensor is 4.67 V or
more.
+
−
Voltage
(Approx.)
EGR volume control valve
Connector
Terminal
F74
3
Ground
5 V
EC-1000
< DTC/CIRCUIT DIAGNOSIS >
[MR EXCEPT FOR NISMO RS MODELS]
P044C, P044D EGR VOLUME CONTROL VALVE POSITION SENSOR
3. Check harness continuity between EGR volume control valve harness connector and ECM harness con-
nector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected parts.
3.
CHECK EGR VOLUME CONTROL VALVE POSITION SENSOR INPUT SIGNAL CIRCUIT
1. Check harness continuity between EGR volume control valve harness connector and ECM harness con-
nector.
2. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace error-detected parts.
4.
CHECK EGR VOLUME CONTROL VALVE
Check the EGR volume control valve. Refer to
EC-961, "Component Inspection (EGR Volume Control Valve)"
.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-45, "Intermittent Incident"
.
NO
>> Replace EGR volume control valve. Refer to
EC-600, "ENGINE CONTROL SYSTEM :
.
5.
CHECK EGR VOLUME CONTROL VALVE POSITION SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between EGR volume control valve harness connector and ECM harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> Perform the trouble diagnosis for ECM power supply circuit. Refer to
.
NO
>> Repair or replace error-detected parts.
Component Inspection (EGR Volume Control Valve)
INFOID:0000000012198493
1.
CHECK EGR VOLUME CONTROL VALVE-1
With CONSULT
1. Turn ignition switch ON and engine stopped.
2. On the CONSULT screen, select “ENGINE” >> “ACTIVE TEST” >> “EGR CONTROL VALVE”.
3. Operate “Up” or “Down”, set “EGR VALVE POSITION” to 0 deg, and check value of “EGR VALVE POSI-
TION SEN”.
Does value become 1.2
±0.15 V?
EGR volume control valve
ECM
Continuity
Connector
Terminal
Connector
Terminal
F74
5
F23
43
Existed
EGR volume control valve
ECM
Continuity
Connector
Terminal
Connector
Terminal
F74
4
F24
68
Existed
EGR volume control valve
ECM
Continuity
Connector
Terminal
Connector
Terminal
F74
3
F23
30
Existed
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