Nissan X-Trail 32. Manual - part 863

U1044 ENG COMM CIRCUIT

EC-581

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Is DTC detected again?

YES

>> Replace ECM. Refer to 

EC-806, "Removal and Installation"

.

NO

>> INSPECTION END

EC-582

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

U1050, U1051 LIN COMMUNICATION

U1050, U1051 LIN COMMUNICATION

DTC Description

INFOID:0000000010986301

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors

(LIN communication circuit is open or shorted.)

• Generator
• ECM

FAIL-SAFE

Not applicable

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.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition ON and wait at least 10 seconds.

2.

Check DTC.

Is DTC detected?

YES

>> Proceed to 

EC-582, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010986302

1.

CHECK LIN COMMUNICATION CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect ECM harness connector and generator harness connector.

3.

Check the continuity between ECM harness connector and generator harness connector.

4.

Also check harness for short to power and short to ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace error-detected parts.

2.

REPLACE GENERATOR

1.

Replace generator. Refer to 

CHG-46, "QR25DE : Removal and Installation"

.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

U1050

LIN COMMUNICATION
[LIN (Local Interconnect Network) commu-
nication)]

ECM detects LIN communication error.

U1051

+

−

Continuity

ECM

Generator

Connector

Terminal

Connector

Terminal

F68

85

F15

2

Existed

U1050, U1051 LIN COMMUNICATION

EC-583

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

2.

Erase DTC.

3.

Perform DTC confirmation procedure again. Refer to 

EC-582, "DTC Description"

.

Is DTC detected again?

YES

>> Replace ECM. Refer to 

EC-806, "Removal and Installation"

.

NO

>> INSPECTION END

EC-584

< DTC/CIRCUIT DIAGNOSIS >

[QR25DE]

P0011 IVT CONTROL

P0011 IVT CONTROL

DTC Description

INFOID:0000000010986303

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Crankshaft position sensor (POS)
• Camshaft position sensor (PHASE)
• Intake valve control solenoid valve
• Accumulation of debris to the signal pick-up portion of the camshaft
• Timing chain installation
• Foreign matter caught in the oil groove for intake valve timing control

FAIL-SAFE

• Device fix mode
• ECM activates the IVT intermediate lock control solenoid valve to bring the cam sprocket into an intermedi-

ate lock condition.

DTC CONFIRMATION PROCEDURE

1.

CHECK DTC PRIORITY

If DTC P0011 is displayed with DTC P0075, first perform the trouble diagnosis for DTC P0075.

Is applicable DTC detected?

YES

>> Perform diagnosis of applicable. Refer to 

EC-598, "DTC Description"

.

NO

>> GO TO 2.

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.

TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is between 11 V and 16 V at
idle.

>> GO TO 3.

3.

PERFORM DTC CONFIRMATION PROCEDURE-1

With CONSULT

1.

Turn ignition switch ON and 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 16 consecutive seconds. Hold the accelerator pedal as
steady as possible.

4.

Stop vehicle with engine running and let engine idle for 16 seconds.

5.

Check 1st trip DTC.

With GST

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

P0011

INT/V TIM CONT-B1
(

″

A

″

 Camshaft position - timing over-ad-

vanced or system performance bank 1)

There is a gap between angle of target and phase-control angle degree.

ENG SPEED

1,200 - 2,000 rpm

COOLAN TEMP/S

More than 60

°

C (140

°

F)

Selector lever

P or N position