Nissan Versa Note. Manual - part 342

EC-350

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

P0605 ECM

2.

REPLACE ECM

1. Replace ECM. Refer to 

EC-465, "Removal and Installation"

.

2. Perform 

EC-123, "Work Procedure"

.

>> INSPECTION END

P0607 ECM

EC-351

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

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EC

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P0607 ECM

DTC Logic

INFOID:0000000009020850

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-351, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009020851

1.

INSPECTION START

1. Turn ignition switch ON.

2. Erase DTC.

3. Perform DTC confirmation procedure. Refer to 

EC-351, "DTC Logic"

.

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

YES

>> Replace ECM. Refer to 

EC-465, "Removal and Installation"

.

NO

>> INSPECTION END

DTC No.

CONSULT screen terms

(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-352

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

P0643 SENSOR POWER SUPPLY

P0643 SENSOR POWER SUPPLY

DTC Logic

INFOID:0000000009020852

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-352, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009020853

1.

CHECK GROUND CONNECTION

1. Turn ignition switch OFF.

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

GI-44, "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 content

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.)
(Camshaft position sensor circuit is shorted.)
(Exhaust valve timing control position sensor cir-
cuit is shorted.)
(Engine oil pressure sensor circuit is shorted.)

• Accelerator pedal position sensor
• Throttle position sensor
• Camshaft position sensor
• Exhaust valve timing control position sensor
• Engine oil pressure sensor

P0643 SENSOR POWER SUPPLY

EC-353

< DTC/CIRCUIT DIAGNOSIS >

[HR16DE]

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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-265, "Component Inspection"

.)

• Engine oil pressure sensor (Refer to 

EC-337, "Component Inspection"

.)

• Camshaft position sensor (Refer to 

EC-281, "Component Inspection"

.)

• Exhaust valve timing control position sensor (Refer to 

EC-281, "Component Inspection"

.)

• Accelerator pedal position sensor 1 (Refer to 

EC-413, "Component Inspection"

.)

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace malfunctioning component.

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-41, "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

Camshaft position sensor

F21

1

Exhaust valve timing control posi-
tion sensor

F56

E16

106

Accelerator pedal position sensor 1

E12

4