2007 INFINITI FX35 Service Manual

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Page 2529 of 4366

INFINITI FX35 2007 Service Manual DTC P0643 SENSOR POWER SUPPLY EC-1153
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EC
Revision: 2006 July 2007 FX35/FX45
Specification data are reference values and are measured between each terminal

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INFINITI FX35 2007 Service Manual EC-1154
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DTC P0643 SENSOR POWER SUPPLY
Revision: 2006 July 2007 FX35/FX45
Diagnostic ProcedureNBS004DD
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three

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INFINITI FX35 2007 Service Manual DTC P0643 SENSOR POWER SUPPLY EC-1155
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Revision: 2006 July 2007 FX35/FX45
3. CHECK SENSOR POWER SUPPLY CIRCUITS
Check harness for short to power and sh

Page 2532 of 4366

INFINITI FX35 2007 Service Manual EC-1156
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DTC P0850 PNP SWITCH
Revision: 2006 July 2007 FX35/FX45
DTC P0850 PNP SWITCHPFP:23006
Component DescriptionNBS004EW
When the selector lever position is P or N, park/neutral position (

EC-1156
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DTC P0850 PNP SWITCH
Revision: 2006 July 2007 FX35/FX45
DTC P0850 PNP SWITCHPFP:23006
Component DescriptionNBS004EW
When the selector lever position is P or N, park/neutral position (PNP) switch is ON.
ECM detects the position because the continuity of the line (the ON signal) exists.
CONSULT-II Reference Value in Data Monitor ModeNBS004EX
Specification data are reference values.
On Board Diagnosis LogicNBS004EY
DTC Confirmation ProcedureNBS004EZ
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “P/N POSI SW” in “DATA MONITOR” mode with CON- SULT-II. Then check the “P/N POSI SW” signal under the follow-
ing conditions.
If NG, go to EC-1159, "
Diagnostic Procedure" .
If OK, go to following step.
3. Select “DATA MONITOR” mode with CONSULT-II.
4. Start engine and warm it up to normal operating temperature.
5. Maintain the following conditions for at least 60 consecutive sec- onds.
6. If 1st trip DTC is detected, go to EC-1159, "
Diagnostic Procedure" .
MONITOR ITEM CONDITION SPECIFICATION
P/N POSI SW
Ignition switch: ON Selector lever: P or N ON
Selector lever: Except above OFF
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P0850
0850 Park/neutral position
switch The signal of the park/neutral position (PNP)
switch is not changed in the process of engine
starting and driving.
Harness or connectors
[The park/neutral position (PNP) switch
circuit is open or shorted.]
Park/neutral position (PNP) switch
Unified meter and A/C amp.
TCM
Position (Selector lever) Known-good signal
N or P position ON
Except above position OFF
SEF212Y
ENG SPEED 1,200 - 6,375 rpm
COOLAN TEMP/S More than 70 °C (158 °F)
B/FUEL SCHDL 2.0 - 31.8 msec
VHCL SPEED SE More than 64 km/h (40 MPH)
Selector lever Suitable position
SEF213Y

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INFINITI FX35 2007 Service Manual DTC P0850 PNP SWITCH EC-1157
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Revision: 2006 July 2007 FX35/FX45
Overall Function CheckNBS004F0
Use this procedure to check the overall function of the

Page 2534 of 4366

INFINITI FX35 2007 Service Manual EC-1158
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DTC P0850 PNP SWITCH
Revision: 2006 July 2007 FX35/FX45
Wiring DiagramNBS004F1
TBWM0521E

Page 2535 of 4366

INFINITI FX35 2007 Service Manual DTC P0850 PNP SWITCH EC-1159
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Revision: 2006 July 2007 FX35/FX45
Specification data are reference values and are measured between each terminal and grou

Page 2536 of 4366

INFINITI FX35 2007 Service Manual EC-1160
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DTC P0850 PNP SWITCH
Revision: 2006 July 2007 FX35/FX45
5. CHECK PNP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT-II
1. Disconnect ECM harness connector.
2. Check harness continui

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