Nissan Pathfinder (2011 year). Instruction — part 346
EC-822
< DTC/CIRCUIT DIAGNOSIS >
[VK56DE]
P0643 SENSOR POWER SUPPLY
6.
REPLACE ACCELERATOR PEDAL ASSEMBLY
1. Replace accelerator pedal position assembly. Refer to
.
2. Perform
EC-593, "Accelerator Pedal Released Position Learning"
3. Perform
EC-593, "Throttle Valve Closed Position Learning"
4. Perform
EC-593, "Idle Air Volume Learning"
.
>>
INSPECTION END
7.
CHECK INTERMITTENT INCIDENT
GI-37, "Intermittent Incident"
>>
INSPECTION END
2011 Pathfinder
P0850 PNP SWITCH
EC-823
< DTC/CIRCUIT DIAGNOSIS >
[VK56DE]
C
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EC
N
P
O
P0850 PNP SWITCH
Component Description
INFOID:0000000006244487
When the selector lever position is P or N, park/neutral position (PNP) signal is sent to ECM from TCM via
combination meter (unified meter control unit).
ECM detects the position because the continuity of the line (the ON signal) exists.
On Board Diagnosis Logic
INFOID:0000000006244488
DTC Confirmation Procedure
INFOID:0000000006244489
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next step.
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.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “P/N POSI SW” in “DATA MONITOR” mode with CONSULT-III. Then check the “P/N POSI SW”
indication under the following conditions.
If NG, go to
If OK, go to following step.
3. Select “DATA MONITOR” mode with CONSULT-III.
4. Start engine and warm it up to normal operating temperature.
5. Maintain the following conditions for at least 60 consecutive seconds.
6. Check 1st trip DTC.
7. If 1st trip DTC is detected, go to
Overall Function Check
INFOID:0000000006244490
Use this procedure to check the overall function of the park/neutral position (PNP) signal circuit. During this
check, a 1st trip DTC might not be confirmed.
WITH GST
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P0850
0850
Park/neutral position
switch
The park/neutral position (PNP) signal does not
change during driving after engine is started.
• Harness or connectors
[The park/neutral position (PNP) signal
circuit is open or shorted.]
• Combination meter (unified meter control
unit)
• TCM
Selector lever position
Known-good signal
N or P position
ON
Except the above position
OFF
ENG SPEED
1,050 - 6,375 rpm
COOLAN TEMP/S
More than 70
°
C (158
°
F)
B/FUEL SCHDL
3.5 - 31.8 msec
VHCL SPEED SE
More than 64 km/h (40 MPH)
Selector lever
Suitable position
2011 Pathfinder
EC-824
< DTC/CIRCUIT DIAGNOSIS >
[VK56DE]
P0850 PNP SWITCH
1. Turn ignition switch ON.
2. Check voltage between ECM terminal 102 (PNP signal) and
ground under the following conditions.
3. If NG, go to
Diagnosis Procedure
INFOID:0000000006244491
1.
CHECK DTC WITH TCM
Refer to
TM-34, "OBD-II Diagnostic Trouble Code (DTC)"
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace malfunctioning part.
2.
CHECK STARTING SYSTEM
Turn ignition switch OFF, then turn it to START.
Does starter motor operate?
Yes or No
Yes
>> GO TO 3.
No
>> Refer to
3.
CHECK PNP SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Disconnect combination meter harness connector.
4. Check harness continuity between ECM terminal 102 and combination meter terminal 7.
Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 4.
4.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors M31, E152
• Harness for open or short between ECM and combination meter
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK INTERMITTENT INCIDENT
GI-37, "Intermittent Incident"
OK or NG
OK
>> GO TO 6.
NG
>> Repair or replace malfunctioning part.
6.
REPLACE COMBINATION METER FUNCTION
MWI-88, "Removal and Installation"
Selector lever position
Voltage (Known good data)
P or N position
Approx. 0 V
Except the above position
BATTERY VOLTAGE
(11 - 14 V)
MBIB0043E
Continuity should exist.
2011 Pathfinder
P0850 PNP SWITCH
EC-825
< DTC/CIRCUIT DIAGNOSIS >
[VK56DE]
C
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EC
N
P
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>>
INSPECTION END
2011 Pathfinder
EC-826
< DTC/CIRCUIT DIAGNOSIS >
[VK56DE]
P1140, P1145 IVT CONTROL POSITION SENSOR
P1140, P1145 IVT CONTROL POSITION SENSOR
Component Description
INFOID:0000000006244492
Intake valve timing control position sensors are located in the front of
cylinder heads in both bank 1 and bank 2.
This sensor uses a Hall IC.
The cam position is determined by the intake camshaft sprocket con-
cave (in four places). The ECM provides feedback to the intake valve
timing control for appropriate target valve open-close timing accord-
ing to drive conditions based on detected cam position.
On Board Diagnosis Logic
INFOID:0000000006244493
DTC Confirmation Procedure
INFOID:0000000006244494
1. If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next step.
a. Turn ignition switch OFF and wait at least 10 seconds.
b. Turn ignition switch ON.
c.
Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Select “DATA MONITOR” mode with CONSULT-III.
4. Maintain the following conditions for at least 10 seconds.
5. Check 1st trip DTC.
6. If 1st trip DTC is detected, go to
Diagnosis Procedure
INFOID:0000000006244495
1.
CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground screws on the body.
SEF359Z
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P1140
1140
(Bank 1)
Intake valve timing control
position sensor circuit
An excessively high or low voltage from
the sensor is sent to ECM.
• Harness or connectors
(Intake valve timing control position sensor
circuit is open or shorted)
• Intake valve timing control position sensor
• Crankshaft position sensor (POS)
• Camshaft position sensor (PHASE)
• Accumulation of debris to the signal pick-up
portion of the camshaft sprocket
P1145
1145
(Bank 2)
Engine speed
More than idle speed
Selector lever
P or N position
2011 Pathfinder
P1140, P1145 IVT CONTROL POSITION SENSOR
EC-827
< DTC/CIRCUIT DIAGNOSIS >
[VK56DE]
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EC
N
P
O
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace ground connections.
2.
CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR POWER SUPPLY CIRCUIT
1. Disconnect intake valve timing control position sensor harness connector.
2. Turn ignition switch ON.
3. Check voltage between intake valve timing control position sen-
sor terminal 3 and ground with CONSULT-III or tester.
OK or NG
OK
>> GO TO 4.
NG
>> GO TO 3.
3.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E2, F32
• IPDM E/R harness connector E19
• Harness for open or short between intake valve timing control position sensor and IPDM E/R
• Harness for open or short between intake valve timing control position sensor and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR GROUND CIRCUIT FOR OPEN AND
SHORT
1. Turn ignition switch OFF.
BBIA0539E
1.
Intake valve timing control position
sensor (bank 2)
2.
Intake valve timing control solenoid
valve (bank 2)
3.
Drive belt
4.
Radiator hose
5.
Intake valve timing control solenoid
valve (bank 1)
6.
Intake valve timing control position
sensor (bank 1)
Voltage: Battery voltage
BBIA0771E
SEF509Y
2011 Pathfinder
EC-828
< DTC/CIRCUIT DIAGNOSIS >
[VK56DE]
P1140, P1145 IVT CONTROL POSITION SENSOR
2. Check harness continuity between intake valve timing control position sensor terminal 1 and ground.
Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK
>> GO TO 6.
NG
>> GO TO 5.
5.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E2, F32
• Harness for open or short between intake valve timing control position sensor and ground
>> Repair open circuit or short to power in harness or connectors.
6.
CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN
AND SHORT
1. Disconnect ECM harness connector.
2. Check harness continuity between the following;
ECM terminal 72 and intake valve timing control position sensor (bank 1) terminal 2 or
ECM terminal 53 and intake valve timing control position sensor (bank 2) terminal 2.
Refer to Wiring Diagram.
3. Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 7.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
7.
CHECK INTAKE VALVE TIMING CONTROL POSITION SENSOR
EC-829, "Component Inspection"
OK or NG
OK
>> GO TO 8.
NG
>> Replace malfunctioning intake valve timing control position sensor. Refer to
.
8.
CHECK CRANKSHAFT POSITION SENSOR (POS)
EC-734, "Component Inspection"
OK or NG
OK
>> GO TO 9.
NG
>> Replace crankshaft position sensor (POS). Refer to
.
9.
CHECK CAMSHAFT POSITION SENSOR (PHASE)
EC-738, "Component Inspection"
OK or NG
OK
>> GO TO 10.
NG
>> Replace camshaft position sensor (PHASE). Refer to
10.
CHECK CAMSHAFT SPROCKET
Check accumulation of debris to the signal pick-up portion of the camshaft sprocket. Refer to
"Inspection after Installation"
OK or NG
OK
>> GO TO 11.
NG
>> Remove debris and clean the signal pick-up cutout of camshaft sprocket.
11.
CHECK INTERMITTENT INCIDENT
Continuity should exist.
Continuity should exist.
2011 Pathfinder
P1140, P1145 IVT CONTROL POSITION SENSOR
EC-829
< DTC/CIRCUIT DIAGNOSIS >
[VK56DE]
C
D
E
F
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EC
N
P
O
GI-37, "Intermittent Incident"
.
>>
INSPECTION END
Component Inspection
INFOID:0000000006244496
INTAKE VALVE TIMING CONTROL POSITION SENSOR
1. Disconnect intake valve timing control position sensor harness connector.
2. Loosen the fixing bolt of the sensor.
3. Remove the sensor.
4. Visually check the sensor for chipping.
5. Check resistance as shown below.
6. If NG, replace intake valve timing control position sensor. Refer
.
SEF362Z
Terminal No. (Polarity)
Resistance [at 25
°
C (77
°
F)]
3 (+) - 1 (-)
Except 0 or
∞
Ω
2 (+) - 1 (-)
3 (+) - 2 (-)
PBIB0194E
2011 Pathfinder
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