Nissan X-Trail 32. Instruction — part 895

P0643 SENSOR POWER SUPPLY

EC-709

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

NO

>> Repair or replace malfunctioning component.

5.

CHECK APP SENSOR

Refer to

EC-759, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace accelerator pedal assembly. Refer to

ACC-4, "Removal and Installation"

.

6.

CHECK INTERMITTENT INCIDENT

Refer to

GI-44, "Intermittent Incident"

.

>> INSPECTION END

EC-710

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

P0850 PNP SWITCH

P0850 PNP SWITCH

Description

INFOID:0000000010986415

Transmission range switch is turn ON when the selector lever is P or N.
ECM detects the position because the continuity of the line (the ON) exists.

DTC Description

INFOID:0000000010986416

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors (The transmission range switch circuit is open or shorted.)
• Transmission range switch

FAIL-SAFE

Not applicable

DTC CONFIRMATION PROCEDURE

1.

INSPECTION START

Do you have CONSULT?
Do you have CONSULT?

YES

>> GO TO 2.

NO

>> GO TO 5.

2.

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 3.

3.

CHECK PNP SIGNAL FUNCTION

With CONSULT

1.

Turn ignition switch ON.

2.

Select “P/N POSI SW” in “DATA MONITOR” mode of “ENGINE” using CONSULT. Then check the “P/N
POSI SW” signal as per the following conditions.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Proceed to

EC-711, "Diagnosis Procedure"

.

4.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Select “DATA MONITOR” mode of “ENGINE” using CONSULT.

2.

Start engine and warm it up to normal operating temperature.

3.

Maintain the following conditions for at least 60 consecutive seconds.

CAUTION:

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P0850

P-N POS SW/CIRCUIT
(Park/neutral switch input circuit)

The signal of transmission range switch is not changed in the process of
engine starting and driving.

Selector lever position

Known-good signal

N or P position

ON

Except above position

OFF

P0850 PNP SWITCH

EC-711

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Always drive vehicle at a safe speed.

4.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Proceed to

EC-711, "Diagnosis Procedure"

.

NO

>> INSPECTION END

5.

PERFORM COMPONENT FUNCTION CHECK

1.

Turn ignition switch ON.

2.

Check the voltage between ECM harness connector terminals as per the following conditions.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to

EC-711, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010986417

1.

CHECK TRANSMISSION RANGE SWITCH POWER SUPPLY

1.

Turn ignition switch OFF.

2.

Disconnect transmission range switch harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between transmission range switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK TRANSMISSION RANGE SWITCH POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R harness connector.

3.

Check the continuity between transmission range switch harness connector and IPDM E/R harness con-
nector.

ENG SPEED

1,000 - 6,375 rpm

COOLAN TEMP/S

More than 70

°

C (158

°

F)

B/FUEL SCHDL

3.25 - 31.8 msec

VHCL SPEED SE

More than 64 km/h (40 mph)

Selector lever

Suitable position

ECM

Condition

Voltage

(Approx.)

Connector

+

−

Terminal

E60

117

128

Selector lever

P or N

Battery voltage

Except above

0 V

+

−

Voltage

Transmission range switch

Connector

Terminal

F22

1

Ground

Battery voltage

+

−

Continuity

Transmission range switch

IPDM E/R

Connector

Terminal

Connector

Terminal

F22

1

F72

70

Existed

EC-712

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

P0850 PNP SWITCH

4.

Also check harness for short to ground.

Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

3.

CHECK TRANSMISSION RANGE SWITCH SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector.

3.

Check the continuity between transmission range 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 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK TRANSMISSION RANGE SWITCH

Check the transmission range switch. Refer to

TM-325, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace transmission range switch. Refer to

TM-450, "Removal and Installation"

.

5.

CHECK INTERMITTENT INCIDENT

Refer to

GI-44, "Intermittent Incident"

.

>> INSPECTION END

+

−

Continuity

Transmission range switch

ECM

Connector

Terminal

Connector

Terminal

F22

2

E60

117

Existed