Infiniti FX35 / FX45. Manual - part 563

 

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Infiniti FX35 / FX45. Manual - part 563

 

 

DTC P0643 SENSOR POWER SUPPLY

EC-1013

< SERVICE INFORMATION >

[VK45DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

3.

Perform 

EC-663, "Throttle Valve Closed Position Learning"

.

4.

Perform 

EC-663, "Idle Air Volume Learning"

.

>> INSPECTION END

7.

CHECK INTERMITTENT INCIDENT

Refer to 

EC-717

.

>> INSPECTION END

EC-1014

< SERVICE INFORMATION >

[VK45DE]

DTC P0850 PNP SWITCH

DTC P0850 PNP SWITCH

Component Description

INFOID:0000000001326872

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-III Reference Value in Data Monitor Mode

INFOID:0000000001326873

Specification data are reference values.

On Board Diagnosis Logic

INFOID:0000000001326874

DTC Confirmation Procedure

INFOID:0000000001326875

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-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” sig-
nal under the following conditions.

If NG, go to 

EC-1017, "Diagnosis Procedure"

.

If OK, go to following step.

3.

Start engine and warm it up to normal operating temperature.

4.

Maintain the following conditions for at least 60 consecutive seconds.

5.

Check 1st trip DTC.

6.

If 1st trip DTC is detected, go to 

EC-1017, "Diagnosis 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

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

DTC P0850 PNP SWITCH

EC-1015

< SERVICE INFORMATION >

[VK45DE]

C

D

E

F

G

H

I

J

K

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A

EC

N

P

O

Overall Function Check

INFOID:0000000001326876

Use this procedure to check the overall function of the park/neutral position (PNP) switch circuit. During this
check, a 1st trip DTC might not be confirmed.

 WITH GST

1.

Turn ignition switch ON.

2.

Check voltage between ECM terminal 102 (PNP switch signal)
and ground under the following conditions.

3.

If NG, go to 

EC-1017, "Diagnosis Procedure"

.

Position (Selector lever)

Voltage (Known-good data)

P or N position

Approx. 0V

Except above position

BATTERY VOLTAGE

(11 - 14V)

MBIB0043E

EC-1016

< SERVICE INFORMATION >

[VK45DE]

DTC P0850 PNP SWITCH

Wiring Diagram

INFOID:0000000001326877

Specification data are reference values and are measured between each terminal and ground.

CAUTION:

Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.

TBWM0521E

 

 

 

 

 

 

 

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