Nissan Juke F15. Instruction — part 545
P044A, P044E EGR VOLUME CONTROL VALVE POSITION SENSOR
EC-993
< 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
P044A, P044E EGR VOLUME CONTROL VALVE POSITION SENSOR
DTC Logic
INFOID:0000000012198485
DTC DETECTION LOGIC
NOTE:
If DTC P044A, or P044E is displayed with DTC P0643, first perform trouble diagnosis for DTC P0643. Refer to
.
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:0000000012198486
1.
CHECK EGR VOLUME CONTROL VALVE POSITION SENSOR POWER SUPPLY CIRCUIT
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
>> Perform the trouble diagnosis for power supply circuit.
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.
DTC No.
Trouble diagnosis name
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P044A
EGR SENSOR C
(EGR sensor C circuit low)
ECM detects that a voltage signal from EGR
volume control valve position sensor is less
than 4.81 V for 5 consecutive seconds.
• Harness or connectors
(EGR volume control valve position
sensor circuit is open or shorted.)
• EGR volume control valve
P044E
EGR SENSOR C
(EGR sensor C circuit high)
ECM detects that a voltage signal from EGR
volume control valve position sensor is less
than 0.275 V for 5 consecutive seconds.
+
−
Voltage
(Approx.)
EGR volume control valve
Connector
Terminal
F74
3
Ground
5 V
EC-994
< DTC/CIRCUIT DIAGNOSIS >
[MR EXCEPT FOR NISMO RS MODELS]
P044A, P044E EGR VOLUME CONTROL VALVE POSITION SENSOR
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 :
.
Component Inspection (EGR Volume Control Valve)
INFOID:0000000012198487
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 “V1” of “EGR VALVE
POSITION SEN”.
Does “V1” become 1.2
±0.15 V?
YES
>> GO TO 2.
NO
>> Replace EGR volume control valve. Refer to
EC-600, "ENGINE CONTROL SYSTEM :
.
2.
CHECK EGR VOLUME CONTROL VALVE-2
With CONSULT
1. Operate “Up” or “Down”, set “EGR VALVE POSITION” to 70 deg, and check value “V2” of “EGR VALVE
POSITION SEN”.
Does “V2” become 4.0
±0.15 V?
YES
>> GO TO 3.
NO
>> Replace EGR volume control valve. Refer to
EC-600, "ENGINE CONTROL SYSTEM :
.
3.
CHECK EGR VOLUME CONTROL VALVE VISUALLY
1. Turn ignition switch OFF.
2. Check if any foreign objects interferes with EGR volume control valve.
Is the inspection result normal?
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
P044A, P044E EGR VOLUME CONTROL VALVE POSITION SENSOR
EC-995
< 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
YES
>> INSPECTION END
NO
>> Repair or replace the error-detected parts.
EC-996
< DTC/CIRCUIT DIAGNOSIS >
[MR EXCEPT FOR NISMO RS MODELS]
P044B EXHAUST GAS RECIRCULATION SYSTEM
P044B EXHAUST GAS RECIRCULATION SYSTEM
DTC Logic
INFOID:0000000012198488
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.
TEST CONDITION:
Before performing the following procedure, confirm that battery voltage is 11 V or more at ignition switch ON.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT.
3. Check that “COOLANT TEMP/S” indicates 65
°C (149°F) or more.
4. Check that “INT/A TEMP SE” indicates 5
°C (41°F) or more.
5. Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Proceed to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000012198489
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.
DTC No.
Trouble diagnosis name
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P044B
EGR SENSOR C
(EGR sensor C circuit range/
performance)
ECM detects the following status continuously
for 0.5 seconds or more:
A voltage signal transmitted from the EGR vol-
ume control valve position sensor is between
0.32 V and 1.08 V under the following condi-
tions:
• After the ignition switch is turned OFF and
the engine is stopped by “Self Shut-OFF”.
This diagnosis works only when the ignition
switch is turned OFF and the engine is
stopped by “Self Shut-OFF”.
• Engine coolant temperature: 65
°C (149°F)
or more
• Intake air temperature: 5
°C (41°F) or more
• EGR volume control valve is stuck
• EGR volume control valve is jammed
with foreign objects
• Improper specification of EGR vol-
ume control valve position sensor
+
−
Voltage
(Approx.)
EGR volume control valve
Connector
Terminal
F74
3
Ground
5 V
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