Nissan Juke F15. Instruction — part 404
P0850 PNP SWITCH
EC-429
< DTC/CIRCUIT DIAGNOSIS >
[MR 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 7.
NO
>> Perform the trouble diagnosis for power supply circuit.
7.
CHECK PNP SWITCH INPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between PNP switch harness connector and ECM harness connector.
4. Also check harness for short to ground and to power.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair or replace error-detected parts.
8.
CHECK PNP SWITCH
Check the PNP switch. Refer to
TM-20, "PARK/NEUTRAL POSITION (PNP) SWITCH : Component Inspec-
.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-45, "Intermittent Incident"
.
NO
>> Replace PNP switch. Refer to
TM-24, "Removal and Installation"
.
+
−
Voltage
PNP switch
Connector
Terminal
F56
2
Ground
Battery voltage
+
−
Continuity
PNP switch
ECM
Connector
Terminal
Connector
Terminal
F56
1
E18
103
Existed
EC-430
< DTC/CIRCUIT DIAGNOSIS >
[MR FOR NISMO RS MODELS]
P1078 EVT CONTROL POSITION SENSOR
P1078 EVT CONTROL POSITION SENSOR
DTC Logic
INFOID:0000000012197980
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. Start engine and let it idle for 10 seconds.
2. Check 1st trip DTC.
Is 1st trip DTC detected?
YES
>> Proceed to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000012197981
1.
CHECK EXHAUST VALVE TIMING (EVT) CONTROL POSITION SENSOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect exhaust valve timing (EVT) control position sensor harness connector.
3. Turn ignition switch ON.
4. Check the voltage between EVT control position sensor harness connector and ground.
DTC No.
Trouble diagnosis name
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P1078
EXH TIM SEN/CIRC-B1
(Exhaust valve timing con-
trol position sensor circuit)
An excessively high or low
voltage from the sensor is
sent to ECM.
• Harness or connectors
(Exhaust valve timing control position sensor circuit is open
or shorted)
(Camshaft position sensor circuit is open or shorted)
(Fuel rail pressure sensor circuit is open or shorted.)
(Battery current sensor circuit is open or shorted.)
(G sensor circuit is open or shorted.)
(Accelerator pedal position sensor 2 circuit is open or short-
ed.)
(Turbocharger boost sensor circuit is open or shorted.)
(Engine oil pressure sensor circuit is open or shorted.)
• Accumulation of debris to the signal pick-up portion of the
camshaft
• Exhaust valve timing control position sensor
• Crankshaft position sensor
• Camshaft position sensor
• Fuel rail pressure sensor
• Battery current sensor
• G sensor
• Accelerator pedal position sensor 2
• Turbocharger boost sensor
• Engine oil pressure sensor
P1078 EVT CONTROL POSITION SENSOR
EC-431
< DTC/CIRCUIT DIAGNOSIS >
[MR 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 3.
NO
>> GO TO 2.
2.
CHECK SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check harness connector for short to power and short to ground, between the following terminals.
Is inspection result normal?
YES
>> Perform the trouble diagnosis for power supply circuit.
NO
>> Repair or replace error-detected parts.
3.
CHECK EVT CONTROL POSITION SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between EVT control position sensor harness connector and ECM harness connec-
tor.
4. Also check harness for short to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace error-detected parts.
4.
CHECK EVT CONTROL POSITION SENSOR INPUT SIGNAL CIRCUIT
1. Disconnect ECM harness connector.
2. Check the continuity between EVT control position sensor harness connector and ECM harness connec-
tor.
+
−
Voltage
(Approx.)
EVT sensor
Connector
Terminal
F110
1
Ground
5 V
ECM
Sensor
Connector
Terminal
Name
Connector
Terminal
F25
39
FRP sensor
F5
1
EOP sensor
F43
3
Turbocharger boost sensor
F75
1
F26
68
Battery current sensor
F52
1
G sensor
B32
3
72
CMP sensor
F109
1
EVT control position sensor
F110
1
E18
118
APP sensor 2
E101
5
+
−
Continuity
EVT control position sensor
ECM
Connector
Terminal
Connector
Terminal
F110
2
F26
59
Existed
EC-432
< DTC/CIRCUIT DIAGNOSIS >
[MR FOR NISMO RS MODELS]
P1078 EVT CONTROL POSITION SENSOR
3. Also check harness for short to ground and to power.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace error-detected parts.
5.
CHECK EVT CONTROL POSITION SENSOR
Check the EVT control position sensor. Refer to
EC-432, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace EVT control position sensor. Refer to
EM-89, "Removal and Installation"
.
6.
CHECK CAMSHAFT (EXT)
Check the following.
• Accumulation of debris to the signal plate of camshaft rear end
• Chipping signal plate of camshaft rear end
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
NO
>> Remove debris and clean the signal plate of camshaft
rear end or replace camshaft. Refer to
.
Component Inspection
INFOID:0000000012197982
1.
EXHAUST VALVE TIMING (EVT) CONTROL POSITION SENSOR-I
1. Turn ignition switch OFF.
2. Disconnect EVT control position sensor harness connector.
3. Loosen the fixing bolt of the sensor.
4. Remove the sensor.
5. Visually check the sensor for chipping.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace EVT control position sensor. Refer to
.
2.
EVT CONTROL POSITION SENSOR-II
Check resistance EVT control position sensor terminals as shown below.
+
−
Continuity
EVT control position sensor
ECM
Connector
Terminal
Connector
Terminal
F110
3
F26
67
Existed
JSBIA0600ZZ
JMBIA0065ZZ
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