Nissan Versa Sedan. Manual - part 336

P0607 ECM

EC-343

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

P0607 ECM

DTC Logic

INFOID:0000000009267231

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON.

2. Check DTC.
Is DTC detected?

YES

>> Proceed to 

EC-343, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009267232

1.

INSPECTION START

1. Turn ignition switch ON.

2. Erase DTC.

3. Perform DTC confirmation procedure. Refer to 

EC-343, "DTC Logic"

.

4. Check DTC.
Is the DTC P0607 displayed again?

YES

>> Replace ECM. Refer to 

EC-463, "Removal and Installation"

.

NO

>> INSPECTION END

DTC No.

Trouble diagnosis name

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0607

ECM
(CAN communication bus)

When detecting error during the initial diagnosis 
of CAN controller of ECM.

ECM

EC-344

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

P0643 SENSOR POWER SUPPLY

P0643 SENSOR POWER SUPPLY

DTC Logic

INFOID:0000000009267233

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

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.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 10 V at idle.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1. Start engine and let it idle for 1 second.

2. Check DTC.
Is DTC detected?

YES

>> Go to 

EC-344, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009267234

1.

CHECK GROUND CONNECTION

1. Turn ignition switch OFF.

2. Check ground connection E15. Refer to Ground Inspection in 

GI-48, "Circuit Inspection"

. 

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace ground connection.

2.

CHECK SENSOR POWER SUPPLY

1. Turn ignition switch ON.

2. Check the voltage between ECM harness connector and ground.

DTC No. Trouble diagnosis name

DTC detecting condition

Possible cause

P0643

Sensor power supply 
circuit short

ECM detects a voltage of power source 
for sensor is excessively low or high.

• Harness or connectors

(Accelerator pedal position 1 circuit is shorted.)
(Throttle position sensor 1 circuit is shorted.)
(Intake camshaft position sensor circuit is shorted.)
(Exhaust camshaft position sensor circuit is shorted.)
(Engine oil pressure sensor circuit is shorted.)

• Accelerator pedal position sensor
• Throttle position sensor
• Intake camshaft position sensor
• Exhaust camshaft position sensor
• Engine oil pressure sensor

P0643 SENSOR POWER SUPPLY

EC-345

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 3.

3.

CHECK SENSOR POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Check harness for short to power and short to ground, between the following terminals.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair short to ground or short to power in harness or connectors.

4.

CHECK COMPONENTS 

Check the following.

• Throttle position sensor 1 (Refer to 

EC-262, "Component Inspection"

.)

• Engine oil pressure sensor (Refer to 

EC-335, "Component Inspection"

.)

• Intake camshaft position sensor (Refer to 

EC-278, "Component Inspection"

.)

• Exhaust camshaft position sensor (Refer to 

EC-278, "Component Inspection"

.)

• Accelerator pedal position sensor 1 (Refer to 

EC-410, "Component Inspection"

.)

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace malfunctioning component.

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-45, "Intermittent Incident"

.

>> INSPECTION END

ECM

Ground

Voltage

(Approx.)

Connector

Terminal

F11

72

Ground

5 V

74

78

E16

106

ECM

Sensor

Connector

Terminal

Item

Connector

Terminal

F11

72

Throttle position sensor 1

F7

2

74

Engine oil pressure sensor

F38

1

78

Intake camshaft position sensor

F21

1

Exhaust camshaft position sensor

F56

E16

106

Accelerator pedal position sensor 1

E12

4

EC-346

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

P0850 PNP SWITCH

P0850 PNP SWITCH

Description

INFOID:0000000009267235

For A/T models or CVT models, transmission range switch is turn ON when the selector lever is P or N.

For M/T models, park/neutral position (PNP) range switch is ON when the selector lever is Neutral position.

ECM detects the position because the continuity of the line (the ON) exists.

DTC Logic

INFOID:0000000009267236

DTC DETECTION LOGIC

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 with CONSULT. Then check “P/N POSI SW” signal

under the following conditions.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Go to 

EC-347, "Diagnosis Procedure"

.

4.

PERFORM DTC CONFIRMATION PROCEDURE

1. Select “DATA MONITOR” mode with CONSULT.

2. Start engine and warm it up to normal operating temperature.

3. Maintain the following conditions for at least 50 consecutive seconds.

CAUTION:

Always drive vehicle at a safe speed.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P0850

Park/neutral position 
signal

The park/neutral position (PNP) signal is 
not changed in the process of engine 
starting and driving.

• Harness or connectors

[The park/neutral position (PNP) signal circuit is 
open or shorted.]

• Transmission range switch (A/T models or CVT 

models)

• Park/neutral position (PNP) switch (M/T models)

Shift lever position

Known-good signal

P or N position (A/T or CVT)
Neutral position (M/T)

ON

Except above position

OFF