Nissan Versa Sedan. Instruction - part 290

U1001 CAN COMM CIRCUIT

EC-159

< DTC/CIRCUIT DIAGNOSIS >

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U1001 CAN COMM CIRCUIT

Description

INFOID:0000000009619956

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-

tiplex communication line with high data communication speed and excellent error detection ability. Many elec-

tronic control units are equipped onto a vehicle, and each control unit shares information and links with other

control units during operation (not independent). In CAN communication, control units are connected with 2

communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.

Each control unit transmits/receives data but selectively reads required data only.

DTC Logic

INFOID:0000000009267057

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON and wait at least 3 seconds.

2. Check DTC.
Is DTC detected?

YES

>>

EC-159, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009267058

Go to 

LAN-15, "Trouble Diagnosis Flow Chart"

.

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

U1001

CAN communication line

When ECM is not transmitting or receiving CAN communication 
signal other than OBD (emission related diagnosis) for 2 seconds 
or more.

Harness or connectors
(CAN communication line 
is open or shorted)

EC-160

< DTC/CIRCUIT DIAGNOSIS >

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P0011 IVT CONTROL

P0011 IVT CONTROL

DTC Logic

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DTC DETECTION LOGIC

NOTE:

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

EC-173, "DTC 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 between 10 V and 16 V at

idle.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE-I

With CONSULT

1. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT.

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

3. Maintain the following conditions for at least 6 consecutive seconds. Hold the accelerator pedal as steady

as possible.

4. Let engine idle for 10 seconds.

5. Check 1st trip DTC.

With GST

Follow the procedure “With CONSULT” above.
Is 1st trip DTC detected?

YES

>> Go to 

EC-161, "Diagnosis Procedure"

NO

>> GO TO 3.

3.

PERFORM DTC CONFIRMATION PROCEDURE-II

With CONSULT

1. Maintain the following conditions for at least 20 consecutive seconds.

DTC No.

Trouble diagnosis name

Detecting condition

Possible cause

P0011

Intake valve timing control 
performance

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

• Crankshaft position sensor
• Intake camshaft position sensor
• Intake valve timing 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

ENG SPEED

1,200 - 2,000 rpm

COOLAN TEMP/S

More than 60

°C (140°F)

Shift lever

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

P0011 IVT CONTROL

EC-161

< DTC/CIRCUIT DIAGNOSIS >

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CAUTION:

Always drive at a safe speed.

2. Check 1st trip DTC.

With GST

Follow the procedure “With CONSULT” above.
Is 1st trip DTC detected?

YES

>> Go to 

EC-161, "Diagnosis Procedure"

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009267060

1.

CHECK OIL PRESSURE WARNING LAMP

1. Start engine.

2. Check oil pressure warning lamp and confirm it is not illumi-

nated.

Is oil pressure warning lamp illuminated?

YES

>> Go to 

LU-8, "Inspection"

.

NO

>> GO TO 2.

2.

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE

Refer to 

EC-162, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace intake valve timing control solenoid valve.Refer to 

EM-56, "Exploded View"

.

3.

CHECK CRANKSHAFT POSITION SENSOR

Refer to 

EC-274, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace crankshaft position sensor.Refer to 

EM-94, "Exploded View"

.

4.

CHECK INTAKE CAMSHAFT POSITION SENSOR

Refer to 

EC-278, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace intake camshaft position sensor. Refer to 

EM-44, "Exploded View"

.

5.

CHECK CAMSHAFT (INTAKE)

Check the following.

ENG SPEED

1,700 - 3,175 rpm (A constant rotation is maintained.)

COOLAN TEMP/S

More than 60

°C (140°F)

Shift lever

1st or 2nd position

Driving location uphill

Driving vehicle uphill
(Increased engine load will help maintain the driving 
conditions required for this test.)

PBIA8559J

EC-162

< DTC/CIRCUIT DIAGNOSIS >

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P0011 IVT CONTROL

• Accumulation of debris to the signal plate of camshaft rear end

• Chipping signal plate of camshaft rear end
Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Remove debris and clean the signal plate of camshaft

rear end or replace camshaft. Refer to 

EM-56, "Removal

and Installation"

.

6.

CHECK TIMING CHAIN INSTALLATION

Check service records for any recent repairs that may cause timing chain misaligned.
Are there any service records that may cause timing chain misaligned?

YES

>> Check timing chain installation. Refer to 

EM-47, "Removal and Installation"

.

NO

>> GO TO 7.

7.

CHECK LUBRICATION CIRCUIT

Perform “Inspection of Camshaft Sprocket (INT) Oil Groove”. Refer to 

EM-65, "Inspection"

.

Is the inspection result normal?

YES

>> GO TO 8.

NO

>> Clean lubrication line.

8.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-45, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

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1.

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE-I

1. Turn ignition switch OFF.

2. Disconnect intake valve timing control solenoid valve harness connector.

3. Check resistance between intake valve timing control solenoid valve terminals as follows.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace intake valve timing control solenoid valve. Refer to 

EM-56, "Exploded View"

.

2.

CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE-II

1. Remove intake valve timing control solenoid valve. Refer to 

EM-56, "Exploded View"

.

2. Apply 12 V between intake valve timing control solenoid valve

terminals 1 and 2, and then interrupt it. Make sure that the

plunger moves as shown in the figure.

CAUTION:

Do not apply 12 V continuously for 5 seconds or more.

Doing so may result in damage to the coil in intake valve

timing control solenoid valve.

NOTE:

Always replace O-ring when intake valve timing control

solenoid valve is removed.

Is the inspection result normal?

JSBIA0599ZZ

Terminals

Resistance [at 20

°C (68°F)]

1 and 2

7.0 - 7.7 

Ω

1 or 2 and ground

∞ Ω

(Continuity should not exist)

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