Nissan Altima HL32 Hybrid. Manual - part 774

LAN-50

< HOW TO USE THIS MANUAL >

[HEV SYSTEM CAN]

HOW TO USE THIS SECTION

HOW TO USE THIS SECTION

Caution

INFOID:0000000004219051

For trouble diagnosis procedure, refer to 

LAN-53, "Trouble Diagnosis Procedure"

.

Abbreviation List

INFOID:0000000004219052

Unit name abbreviations in HEV SYSTEM CAN diagnosis are as per the following list.

Abbreviation

Unit name

All DTC Reading

(CONSULT-III)

ABS

Brake ECU

ABS

DLC

Data link connector

—

ECM

ECM

ENGINE

EPS

EPS control unit

EPS

HV ECU

Hybrid vehicle control ECU

HYBRID SYSTEM

STRG

Steering angle sensor

—

YAW

Yaw rate/side/decel G sensor

—

LAN

PRECAUTIONS

LAN-51

< PRECAUTION >

[HEV SYSTEM CAN]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

PRECAUTION

PRECAUTIONS

Precautions For High-Voltage System

INFOID:0000000004219053

Refer to 

GI-24, "Precautions For High-Voltage System"

.

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

INFOID:0000000004219054

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along

with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain

types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS

system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front

air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.

Information necessary to service the system safely is included in the “SRS AIRBAG” and “SEAT BELT” of this

Service Manual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed by

an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag

Module, see the “SRS AIRBAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness

connectors.

Precautions for Trouble Diagnosis

INFOID:0000000004219055

CAUTION:

• Never apply 7.0 V or more to the measurement terminal.

• Use a tester with open terminal voltage of 7.0 V or less.

• Turn the ignition switch OFF and disconnect the battery cable from the negative terminal when

checking the harness. 

Precautions for Harness Repair

INFOID:0000000004219056

• Solder the repaired area and wrap tape around the soldered area.

NOTE:

A fray of twisted lines must be within 110 mm (4.33 in).

SKIB8766E

LAN-52

< PRECAUTION >

[HEV SYSTEM CAN]

PRECAUTIONS

• Bypass connection is never allowed at the repaired area.

NOTE:

Bypass connection may cause CAN communication error. The

spliced wire becomes separated and the characteristics of twisted

line are lost. 

• Replace the applicable harness as an assembly if error is detected on the shield lines of HEV SYSTEMCAN

communication line.

SKIB8767E

LAN

DIAGNOSIS AND REPAIR WORKFLOW

LAN-53

< BASIC INSPECTION >

[HEV SYSTEM CAN]

C

D

E

F

G

H

I

J

K

L

B

A

O

P

N

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Information Needed for Trouble Diagnosis

INFOID:0000000004219057

HEV SYSTEM CAN performs trouble diagnosis with the following tools.

Trouble Diagnosis Flow Chart

INFOID:0000000004219058

Trouble Diagnosis Procedure

INFOID:0000000004219059

CHECK VEHICLE CONDITION

Check whether or not the DTC related to HEV SYSTEM CAN indicated on “All DTC Reading” by CONSULT-III.

NOTE:

Root cause cannot be detected using the procedure in this section if the DTC related to HEV SYSTEM CAN is

not indicated. Refer to 

LAN-59, "DTC Related to HEV SYSTEM CAN List"

.

OUTPUT OF DATA

Print out or save “All DTC Reading”.

CREATE DIAGNOSIS SHEET

Print out diagnosis sheet. Refer to 

LAN-59, "Diagnosis Sheet"

.

NOTE:

Tool

Usage

Diagnosis sheet

For detecting the root cause.

All DTC Reading
(CONSULT-III)

For checking the condition of control units and the status of HEV SYSTEM CAN communication.

Abbreviation list

For checking abbreviations in diagnosis sheet.

JPMIA0252GB