2008 INFINITI FX35 Service Manual

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Page 2257 of 3924

INFINITI FX35 2008 Service Manual
DTC P0850 PNP SWITCHEC-1017
< SERVICE INFORMATION > [VK45DE]
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Diagnosis ProcedureINFOID:0000000001326878
1.CHECK DTC WITH TCM
Refer to AT-38, "
OBD-II Diagnostic Troub

Page 2258 of 3924

INFINITI FX35 2008 Service Manual
EC-1018
< SERVICE INFORMATION >[VK45DE]
DTC P0850 PNP SWITCH
1. Check harness continuity between A/T assembly terminal 9 and TCM terminal 8.
Refer to AT- 9 7
.
2. Also check harness for short to gro

Page 2259 of 3924

INFINITI FX35 2008 Service Manual
DTC P1140, P1145 IVT CONTROL POSITION SENSOR
EC-1019
< SERVICE INFORMATION > [VK45DE]
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DTC P1140, P1145 IVT CONTROL POSITION SENSOR
Component DescriptionINFOID:00000000

DTC P1140, P1145 IVT CONTROL POSITION SENSOR
EC-1019
< SERVICE INFORMATION > [VK45DE]
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DTC P1140, P1145 IVT CONTROL POSITION SENSOR
Component DescriptionINFOID:0000000001326879
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.
CONSULT-III Reference Val
ue in Data Monitor ModeINFOID:0000000001326880
Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000001326881
DTC Confirmation ProcedureINFOID:0000000001326882
NOTE:
If DTC Confirmation Procedure has been previously conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-III
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-III.
3. Start engine and drive vehicle under the following conditions for at least 10 seconds.
4. Check 1st trip DTC.
5. If 1st trip DTC is detected, go to EC-1023, "
Diagnosis Procedure".
WITH GST
Follow the procedure “WITH CONSULT-III” above.
SEF359Z
MONITOR ITEM CONDITION SPECIFICATION
INT/V TIM (B1)
INT/V TIM (B2) Engine: After warming up
Selector lever: P or N
Air conditioner switch: OFF
No load Idle
−5 ° - 5 °CA
2,000 rpm Approx. 0 ° - 20 °CA
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1140
11 4 0
(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 positi on sensor (PHASE)
Accumulation of debris to the signal pick-up portion of the camshaft sprock-
et
P1145
11 4 5
(Bank 2)
ENG SPEED More th
an idle speed
Selector lever P or N position
3AA93ABC3ACD3AC03ACA3AC03AC63AC53A913A773A893A873A873A8E3A773A983AC73AC93AC03AC3
3A893A873A873A8F3A773A9D3AAF3A8A3A8C3A863A9D3AAF3A8B3A8C

Page 2260 of 3924

INFINITI FX35 2008 Service Manual
EC-1020
< SERVICE INFORMATION >[VK45DE]
DTC P1140, P1145 IVT CO
NTROL POSITION SENSOR
Wiring Diagram
INFOID:0000000001326883
BANK 1
Specification data are reference values and are measured between ea

Page 2261 of 3924

INFINITI FX35 2008 Service Manual
DTC P1140, P1145 IVT CONTROL POSITION SENSOR
EC-1021
< SERVICE INFORMATION > [VK45DE]
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Do not use ECM ground terminals wh
en measuring input/output voltage. Doing so ma

Page 2262 of 3924

INFINITI FX35 2008 Service Manual
EC-1022
< SERVICE INFORMATION >[VK45DE]
DTC P1140, P1145 IVT CO
NTROL POSITION SENSOR
BANK 2
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is

Page 2263 of 3924

INFINITI FX35 2008 Service Manual
DTC P1140, P1145 IVT CONTROL POSITION SENSOR
EC-1023
< SERVICE INFORMATION > [VK45DE]
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: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscil

Page 2264 of 3924

INFINITI FX35 2008 Service Manual
EC-1024
< SERVICE INFORMATION >[VK45DE]
DTC P1140, P1145 IVT CO
NTROL POSITION SENSOR
1. Disconnect intake valve timing control position sensor harness connector.
2. Turn ignition switch ON.
3. Check

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