Nissan Altima HL32 Hybrid. Manual - part 285

EC-124

< COMPONENT DIAGNOSIS >

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U0418, U1023 CAN COMM DATA

1. Replace brake ECU.

2. Go to 

BRC-198, "Exploded View"

.

>> INSPECTION END

U1001 CAN COMM CIRCUIT

EC-125

< COMPONENT DIAGNOSIS >

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U1001 CAN COMM CIRCUIT

Description

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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

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DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

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

2. Check 1st trip DTC.
Is 1st trip DTC detected?

YES

>>

EC-125, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000004469057

Go to 

LAN-16, "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 com-
munication signal other than OBD (emission related 
diagnosis) for 2 seconds or more.

• Harness or connectors

(CAN communication line is open or 
shorted)

EC-126

< COMPONENT 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 

EC-141, "DTC

Logic"

.

• If DTC P0011 is displayed with DTC P0340, first perform the trouble diagnosis for 

EC-255, "DTC

Logic"

.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-

ing 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 10V and 16V at

idle.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE-I

With CONSULT-III

1. Activate “INSPECTION MODE 1” (

HBC-104

) to start engine, and warm up engine to normal operating

temperature.

2. Turn ignition switch OFF and wait at least 10 seconds.

3. Turn ignition switch ON (READY) and select “DATA MONITOR” mode with CONSULT-III.

4. Maintain the following conditions for at least 10 consecutive seconds. Hold the accelerator pedal as

steady as possible.

CAUTION:

Always drive at a safe speed.

5. Stop vehicle.

6. Check 1st trip DTC.

With GST

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

YES

>> Go to 

EC-127, "Diagnosis Procedure"

DTC No.

Trouble diagnosis 

name

DTC 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 (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 in-

take valve timing control

VHCL SPEED SE

70 km/h (43 mph) or more

ENG SPEED

800 - 2,000 rpm

COOLAN TEMP/S

70

°C (221°F) or more

Shift lever

D position

P0011 IVT CONTROL

EC-127

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>> GO TO 3.

3.

PERFORM DTC CONFIRMATION PROCEDURE-II

With CONSULT-III

1. Maintain the following conditions for at least 10 consecutive seconds.

CAUTION:

Always drive at a safe speed.

2. Check 1st trip DTC.

With GST

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

YES

>> Go to 

EC-127, "Diagnosis Procedure"

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000004211366

1.

CHECK OIL PRESSURE WARNING LAMP

1. Activate “INSPECTION MODE 1” (

HBC-104

) to 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-128, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace intake valve timing control solenoid valve.

3.

CHECK CRANKSHAFT POSITION SENSOR (POS)

Refer to 

EC-253, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace crankshaft position sensor (POS).

4.

CHECK CAMSHAFT POSITION SENSOR (PHASE)

Refer to 

EC-257, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace camshaft position sensor (PHASE).

5.

CHECK CAMSHAFT (INTAKE)

ENG SPEED

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

COOLAN TEMP/S

More than 70

°C (221°F)

Shift lever

D position

Driving location uphill

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

PBIA8559J