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Tiêu đề LAN MẠNG nội bộ TRÊN NISSAN VERSA SEDAN 2012
Trường học University of Automotive Technology
Chuyên ngành Automotive Engineering
Thể loại E-Document
Năm xuất bản 2012
Thành phố Hanoi
Định dạng
Số trang 74
Dung lượng 1,35 MB

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HỆ THỐNG MẠNG LAN NỘI BỘ TRÊN NISSAN VERSA SEDAN ĐỜI 2012

Trang 1

ELECTRICAL & POWER CONTROL

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CONTENTS

LAN SYSTEM

CAN FUNDAMENTAL

HOW TO USE THIS MANUAL 3

HOW TO USE THIS SECTION 3

Information 3

PRECAUTION 4

PRECAUTIONS 4

Precautions for Trouble Diagnosis .4

Precautions for Harness Repair 4

SYSTEM DESCRIPTION .5

SYSTEM 5

CAN COMMUNICATION SYSTEM 5

CAN COMMUNICATION SYSTEM : System De-scription 5

DIAG ON CAN 5

DIAG ON CAN : System Description .5

TROUBLE DIAGNOSIS 7

Component Description 7

Condition of Error Detection 7

Symptom When Error Occurs in CAN Communi-cation System 8

CAN Diagnosis with CONSULT .10

Self-Diagnosis 11

CAN Diagnostic Support Monitor .11

How to Use CAN Communication Signal Chart .13

BASIC INSPECTION .14

DIAGNOSIS AND REPAIR WORKFLOW 14

Trouble Diagnosis Flow Chart 14

Trouble Diagnosis Procedure 14

HOW TO USE THIS SECTION 19

Information 19

Abbreviation List .19

PRECAUTION 20

PRECAUTIONS 20

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TEN-SIONER" 20

Precautions for Trouble Diagnosis .20

Precautions for Harness Repair .20

SYSTEM DESCRIPTION .22

COMPONENT PARTS 22

Component Parts Location .22

SYSTEM 23

CAN COMMUNICATION SYSTEM 23

CAN COMMUNICATION SYSTEM : System De-scription 23

CAN COMMUNICATION SYSTEM : CAN Com-munication Control Circuit .26

CAN COMMUNICATION SYSTEM : CAN System Specification Chart .27

CAN COMMUNICATION SYSTEM : CAN Com-munication Signal Chart .27

WIRING DIAGRAM 30

CAN SYSTEM 30

Wiring Diagram 30

BASIC INSPECTION .35

DIAGNOSIS AND REPAIR WORKFLOW 35

Interview Sheet 35

Trang 2

Main Line .36

Branch Line .36

Short Circuit 36

MAIN LINE BETWEEN IPDM-E AND DLC CIRCUIT 37

Diagnosis Procedure .37

ECM BRANCH LINE CIRCUIT 38

Diagnosis Procedure .38

ABS BRANCH LINE CIRCUIT 39

Diagnosis Procedure .39

IPDM-E BRANCH LINE CIRCUIT 40

Diagnosis Procedure .40

TCM BRANCH LINE CIRCUIT 41

Diagnosis Procedure .41

A-BAG BRANCH LINE CIRCUIT 42

Diagnosis Procedure .42

DLC BRANCH LINE CIRCUIT 43

Diagnosis Procedure .43

EPS BRANCH LINE CIRCUIT 44

Diagnosis Procedure .44

M&A BRANCH LINE CIRCUIT 45

Diagnosis Procedure .45

STRG BRANCH LINE CIRCUIT 46

Diagnosis Procedure .46

BCM BRANCH LINE CIRCUIT 47

Diagnosis Procedure .47

CAN COMMUNICATION CIRCUIT 48

Diagnosis Procedure .48

CAN SYSTEM (TYPE 1) DTC/CIRCUIT DIAGNOSIS 50

MAIN LINE BETWEEN IPDM-E AND DLC CIRCUIT 50

Diagnosis Procedure .50

ECM BRANCH LINE CIRCUIT 51

Diagnosis Procedure .51

ABS BRANCH LINE CIRCUIT 52

Diagnosis Procedure .52

IPDM-E BRANCH LINE CIRCUIT 53

Diagnosis Procedure .53

A-BAG BRANCH LINE CIRCUIT 54

Diagnosis Procedure .54

DLC BRANCH LINE CIRCUIT 55

Diagnosis Procedure 55

EPS BRANCH LINE CIRCUIT 56

Diagnosis Procedure 56

M&A BRANCH LINE CIRCUIT 57

Diagnosis Procedure 57

STRG BRANCH LINE CIRCUIT 58

Diagnosis Procedure 58

BCM BRANCH LINE CIRCUIT 59

Diagnosis Procedure 59

CAN COMMUNICATION CIRCUIT 60

Diagnosis Procedure 60

CAN SYSTEM (TYPE 2) DTC/CIRCUIT DIAGNOSIS 62

MAIN LINE BETWEEN IPDM-E AND DLC CIRCUIT 62

Diagnosis Procedure 62

ECM BRANCH LINE CIRCUIT 63

Diagnosis Procedure 63

ABS BRANCH LINE CIRCUIT 64

Diagnosis Procedure 64

IPDM-E BRANCH LINE CIRCUIT 65

Diagnosis Procedure 65

TCM BRANCH LINE CIRCUIT 66

Diagnosis Procedure 66

A-BAG BRANCH LINE CIRCUIT 67

Diagnosis Procedure 67

DLC BRANCH LINE CIRCUIT 68

Diagnosis Procedure 68

EPS BRANCH LINE CIRCUIT 69

Diagnosis Procedure 69

M&A BRANCH LINE CIRCUIT 70

Diagnosis Procedure 70

STRG BRANCH LINE CIRCUIT 71

Diagnosis Procedure 71

BCM BRANCH LINE CIRCUIT 72

Diagnosis Procedure 72

CAN COMMUNICATION CIRCUIT 73

Diagnosis Procedure 73

Trang 3

HOW TO USE THIS SECTION

O

PN

HOW TO USE THIS MANUAL

HOW TO USE THIS SECTION

Trang 4

< PRECAUTION > [CAN FUNDAMENTAL]

Follow the instructions listed below Failure to do this may cause damage to parts:

• 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:0000000007206340

• 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)

• 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 CAN tion line

communica-SKIB8766E

SKIB8767E

Trang 5

PN

SYSTEM DESCRIPTION

SYSTEM

CAN COMMUNICATION SYSTEM

CAN COMMUNICATION SYSTEM : System Description INFOID:0000000007206341

CAN (Controller Area Network) is a serial communication line for real time application It is an on-vehicle 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 othercontrol units during operation (not independent) In CAN communication, control units are connected with 2communication 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

mul-DIAG ON CAN

DIAG ON CAN : System Description INFOID:0000000007206342

SYSTEM DIAGRAM

JSMIA0526GB

Trang 6

< SYSTEM DESCRIPTION > [CAN FUNDAMENTAL]

CAN-L

For communications with the diagnostic tool (CAN-H and CAN-L are also used for trol and diagnoses.)

Trang 7

PN

TROUBLE DIAGNOSIS

Component Description INFOID:0000000007206343

Condition of Error Detection INFOID:0000000007206344

DTC (e.g U1000 and U1001) of CAN communication is indicated on SELF-DIAG RESULTS on CONSULT if aCAN communication signal is not transmitted or received between units for 2 seconds or more

CAN COMMUNICATION SYSTEM ERROR

• CAN communication line open (CAN-H, CAN-L, or both)

• CAN communication line short (ground, between CAN communication lines, other harnesses)

• Error of CAN communication control circuit of the unit connected to CAN communication line

WHEN DTC OF CAN COMMUNICATION IS INDICATED EVEN THOUGH CAN COMMUNICATION SYSTEM IS NORMAL

• Removal/installation of parts: Error may be detected when removing and installing CAN communication unitand related parts while turning the ignition switch ON (A DTC except for CAN communication may bedetected.)

• Fuse blown out (removed): CAN communication of the unit may cease

• Voltage drop: Error may be detected if voltage drops due to discharged battery when turning the ignitionswitch ON (Depending on the control unit which carries out CAN communication)

• Error may be detected if the power supply circuit of the control unit, which carries out CAN communication,malfunctions (Depending on the control unit which carries out CAN communication)

JSMIA0527GB

Main line CAN communication line between splices

Branch line CAN communication line between splice and a control unit

Splice A point connecting a branch line with a main line

Termination circuit Circuit connected across the CAN communication system (Resistor)

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< SYSTEM DESCRIPTION > [CAN FUNDAMENTAL]

TROUBLE DIAGNOSIS

Symptom When Error Occurs in CAN Communication System INFOID:0000000007206345

In CAN communication system, multiple control units mutually transmit and receive signals Each control unitcannot transmit and receive signals if any error occurs on CAN communication line Under this condition, mul-tiple control units related to the root cause malfunction or go into fail-safe mode

ERROR EXAMPLE

NOTE:

Each vehicle differs in symptom of each control unit under fail-safe mode and CAN communication line wiring

Example: Main Line Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit) Open Circuit

JSMIA0442GB

Unit name Major symptom ECM Engine torque limiting is affected, and shift harshness increases.

BCM

• Reverse warning buzzer does not sound.

• The front wiper moves under continuous operation mode even though the front

wip-er switch being in the intwip-ermittent position.

EPS control unit The steering effort increases.

Combination meter

• The shift position indicator and OD OFF indicator turn OFF.

• The speedometer is inoperative.

• The odo/trip meter stops.

ABS actuator and electric unit (control unit) Normal operation.

TCM No impact on operation.

IPDM E/R

When the ignition switch is ON,

• The headlamps (Lo) turn ON.

• The cooling fan continues to rotate.

Trang 9

PN

Example: TCM Branch Line Open Circuit

BCM Reverse warning buzzer does not sound.

EPS control unit Normal operation.

Combination meter • Shift position indicator and O/D OFF indicator turn OFF.

• Warning lamps turn ON.

ABS actuator and electric unit (control unit) Normal operation.

TCM No impact on operation.

IPDM E/R Normal operation.

Error Difference of symptom Data link connector branch line open circuit Normal operation.

CAN-H, CAN-L harness short-circuit Most of the control units which are connected to the CAN

commu-nication system enter fail-safe mode or are deactivated.

Trang 10

< SYSTEM DESCRIPTION > [CAN FUNDAMENTAL]

TROUBLE DIAGNOSIS

NOTE:

When data link connector branch line is open, transmission and reception of CAN communication signals arenot affected Therefore, no symptoms occur However, be sure to repair malfunctioning circuit

Example: CAN-H, CAN-L Harness Short Circuit

CAN Diagnosis with CONSULT INFOID:0000000007206346

Unit name Major symptom ECM

• Reverse warning buzzer does not sound.

• The front wiper moves under continuous operation mode even though the front wiper switch being in the intermittent position.

• The room lamp does not turn ON.

• The engine does not start (if an error or malfunction occurs while turning the tion switch OFF.)

igni-• The steering lock does not release (if an error or malfunction occurs while turning the ignition switch OFF.)

EPS control unit The steering effort increases.

Combination meter

• The tachometer and the speedometer do not move.

• Warning lamps turn ON.

• Indicator lamps do not turn ON.

ABS actuator and electric unit (control unit) Normal operation.

TCM No impact on operation.

IPDM E/R

When the ignition switch is ON,

• The headlamps (Lo) turn ON.

• The cooling fan continues to rotate.

Trang 11

PN

• Response to the system call

• Control unit diagnosis information

com-NOTE:

The following table shows examples of CAN communication-related DTC For other DTC, refer to the ble sections

applica-CAN Diagnostic Support Monitor INFOID:0000000007206348

MONITOR ITEM (CONSULT)

Example: CAN DIAG SUPPORT MNTR indication

Without PAST

DTC Self-diagnosis item

(CONSULT indication) DTC detection condition Inspection/Action

U1000 CAN COMM CIRCUIT

ECM

When ECM is not transmitting or receiving CAN communication signal of OBD (emission-relat-

ed diagnosis) for 2 seconds or more.

Start the inspection fer to the applicable sec- tion of the indicated control unit.

Re-Except for ECM

When a control unit (except for ECM) is not transmitting or receiving CAN communication signal for 2 seconds or more.

U1001 CAN COMM CIRCUIT

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

communi-U1002 SYSTEM COMM When a control unit is not transmitting or receiving CAN

communication signal for 2 seconds or less.

U1010 CONTROL UNIT(CAN) When an error is detected during the initial diagnosis for

CAN controller of each control unit.

Replace the control unit indicating “U1010”.

JSMIA0015GB

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< SYSTEM DESCRIPTION > [CAN FUNDAMENTAL]

TROUBLE DIAGNOSIS

With PAST

Transmission diagnosis

OK Normal at present

UNKWN Unable to transmit signals for 2 seconds or more.

Diagnosis not performed

Control unit name

(Reception diagnosis)

OK Normal at present

UNKWN

Unable to receive signals for 2 seconds or more.

Diagnosis not performed

No control unit for receiving signals (No applicable optional parts)

Normal at present, but unable to transmit signals for 2 seconds or more

in the past (The number indicates the number of ignition switch cycles from OFF to ON.)

UNKWN 0 Unable to transmit signals for 2 seconds or more at present.

Control unit name

(Reception diagnosis)

OK

OK Normal at present and in the past

1 – 39

Normal at present, but unable to receive signals for 2 seconds or more

in the past (The number indicates the number of ignition switch cycles from OFF to ON.)

UNKWN 0 Unable to receive signals for 2 seconds or more at present.

– – Diagnosis not performed.

No control unit for receiving signals (No applicable optional parts)

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PN

How to Use CAN Communication Signal Chart INFOID:0000000007206349

The CAN communication signal chart lists the signals transmitted/received among control units It is useful fordetecting the root cause by finding a signal related to the symptom, and by checking transmission and recep-tion unit

JSMIA0446GB

Trang 14

< BASIC INSPECTION > [CAN FUNDAMENTAL]

DIAGNOSIS AND REPAIR WORKFLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Trouble Diagnosis Flow Chart INFOID:0000000007206350

Trouble Diagnosis Procedure INFOID:0000000007206351

INTERVIEW WITH CUSTOMER

Interview with the customer is important to detect the root cause of CAN communication system errors and tounderstand vehicle condition and symptoms for proper trouble diagnosis

Points in interview

• What: Parts name, system name

• When: Date, Frequency

• Where: Road condition, Place

• In what condition: Driving condition/environment

• Result: Symptom

Notes for checking error symptoms:

• Check normal units as well as error symptoms

- Example: Circuit between ECM and the combination meter is judged normal if the customer indicatestachometer functions normally

JSMIA0528GB

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DIAGNOSIS AND REPAIR WORKFLOW

O

PN

• Indication of the combination meter is important to detect the root cause because it is the most obvious tothe customer, and it performs CAN communication with many units

INSPECTION OF VEHICLE CONDITION

Check whether the symptom is reproduced or not

NOTE:

Do not turn the ignition switch OFF or disconnect the battery cable while reproducing the error The error maytemporarily correct itself, making it difficult to determine the root cause

CHECK OF CAN SYSTEM TYPE (HOW TO USE CAN SYSTEM TYPE SPECIFICATION CHART)

Determine CAN system type based on vehicle equipment

NOTE:

• This chart is used if CONSULT does not automatically recognize CAN system type

• There are two styles for CAN system type specification charts Depending on the number of available tem types, either style A or style B may be used

sys-CAN System Type Specification Chart (Style A)

NOTE:

SKIB8717E

Trang 16

< BASIC INSPECTION > [CAN FUNDAMENTAL]

DIAGNOSIS AND REPAIR WORKFLOW

CAN system type is easily checked with the vehicle equipment identification information shown in the chart

CAN System Type Specification Chart (Style B)

NOTE:

JSMIA0529GB

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DIAGNOSIS AND REPAIR WORKFLOW

O

PN

CAN system type is easily checked with the vehicle equipment identification information shown in the chart

CREATE INTERVIEW SHEET

Fill out the symptom described by the customer, vehicle condition, and CAN system type on the interviewsheet

JSMIA0530GB

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< BASIC INSPECTION > [CAN FUNDAMENTAL]

DIAGNOSIS AND REPAIR WORKFLOW

Interview Sheet (Example)

DETECT THE ROOT CAUSE

CAN diagnosis function of CONSULT detects the root cause

JSMIA0531GB

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HOW TO USE THIS SECTION

O

PN

HOW TO USE THIS MANUAL

HOW TO USE THIS SECTION

Information INFOID:0000000007206352

• “CAN” of LAN Section describes information peculiar to a vehicle and inspection procedures

• For trouble diagnosis procedure, refer to LAN-14, "Trouble Diagnosis Flow Chart" of “CAN TAL”

FUNDAMEN-Abbreviation List INFOID:0000000007206353

Unit name abbreviations in CONSULT CAN diagnosis and in this section are as per the following list

A-BAG Air bag diagnosis sensor unit ABS ABS actuator and electric unit (control unit)

DLC Data link connector

M&A Combination meter STRG Steering angle sensor

Trang 20

Always observe the following items for preventing accidental activation.

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in the event of a collision that 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 “SRS AIR BAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this vice Manual SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness connectors.

Ser-PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

Always observe the following items for preventing accidental activation.

• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with

a hammer Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the battery, and wait at least 3 minutes before performing any service.

Precautions for Trouble Diagnosis INFOID:0000000007206355

CAUTION:

Follow the instructions listed below Failure to do this may cause damage to parts:

• 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:0000000007206356

• 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

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PN

• 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 CAN tion line

communica-SKIB8767E

Trang 22

< SYSTEM DESCRIPTION > [CAN]

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location INFOID:0000000007206357

1 ABS actuator and electric unit

(con-trol unit) E33

2 TCM F44 3 ECM E16

4 IPDM E/R E46 5 EPS control unit M53 6 BCM M18

7 Data link connector M22 8 Steering angle sensor M64 9 Air bag diagnosis sensor unit M35

10 Combination meter

• M82: TYPE A

• M24: TYPE B

ALMIA0536ZZ

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PN

SYSTEM

CAN COMMUNICATION SYSTEM

CAN COMMUNICATION SYSTEM : System Description INFOID:0000000007206358

SYSTEM DIAGRAM

DESCRIPTION

CAN (Controller Area Network) is a serial communication line for real time application It is an on-vehicle 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 othercontrol units during operation (not independent) In CAN communication, control units are connected with 2communication 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

mul-CAN COMMUNICATION SIGNAL GENERATION

• Termination circuits (resistors) are connected across the CAN communication system When transmitting aCAN communication signal, each control unit passes a current to the CAN-H line and the current returns tothe CAN-L line

JSMIA0800GB

JSMIA0450GB

Trang 24

< SYSTEM DESCRIPTION > [CAN]

SYSTEM

• The current flows separately into the termination circuits connected

across the CAN communication system and the termination

cir-cuits drop voltage to generate a potential difference between the

CAN-H line and the CAN-L line

NOTE:

A signal with no current passage is called “Recessive” and one

with current passage is called “Dominant”

• The system produces digital signals for signal communications, by

using the potential difference

THE CONSTRUCTION OF CAN COMMUNICATION SIGNAL (MESSAGE)

CAN Communication Line

JSMIA0543GB

JSMIA0544ZZ

JSMIA0545ZZ

1 Start of frame (1 bit) Start of message.

2 Arbitration of field (11 bit) Priorities of message-sending are shown when there is a pos-sibility that multiple messages are sent at the same time.

3 Control field (6 bit) Signal quantity in data field is shown.

4 Data field (0-64 bit) Actual signal is shown.

5 CRC field (16 bit)

• The transmitting control unit calculates sending data in vance and writes the calculated value in a message.

ad-• The receiving control unit calculates received data and

judg-es that the data reception is normal when the calculated

val-ue is the same as the valval-ue written in the sent data

6 ACK field (2 bit) The completion of normal reception is sent to the transmitting

control unit.

7 End of frame (7 bit) End of message.

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PN

The CAN communication line is a twisted pair wire consisting of

strands of CAN-L (1) and CAN-L (2) and has noise immunity

NOTE:

The CAN communication system has the characteristics of noise-resistant because this system produces ital signals by using the potential difference between the CAN-H line and the CAN-L line and has the twistedpair wire structure

dig-Since the CAN-H line and the CAN-L line are always adjacent to

each other, the same degree of noise occurs, respectively, when a

noise (1) occurs Although the noise changes the voltage, the

poten-tial difference (2) between the CAN-H line and the CAN-L line is

insensitive to noise Therefore, noise-resistant signals can be

obtained

CAN Signal Communications

Each control unit of the CAN communication system transmits signals through the CAN communication trol circuit included in the control unit and receives only necessary signals from each control unit to performvarious kinds of control

con-• Example: Transmitted signals

JSMIA0382ZZ

JSMIA0383ZZ

Trang 26

< SYSTEM DESCRIPTION > [CAN]

communi-CAN COMMUNICATION SYSTEM : communi-CAN Communication Control Circuit INFOID:0000000007206359

CAN communication control circuit is incorporated into the control unit and transmits/receives CAN cation signals

communi-JSMIA0577GB

JSMIA0453GB

Component System description

CAN controller It controls CAN communication signal transmission and reception, error detection, etc.

Transceiver IC It converts digital signal into CAN communication signal, and CAN communication signal into digital

signal.

Trang 27

PN

*: These are the only control units wired with both ends of CAN communication system.

CAN COMMUNICATION SYSTEM : CAN System Specification Chart INFOID:0000000007206360

Determine CAN system type from the following specification chart

NOTE:

Refer to LAN-14, "Trouble Diagnosis Procedure" for how to use CAN system specification chart

×: Applicable

CAN COMMUNICATION SYSTEM : CAN Communication Signal Chart INFOID:0000000007206361

Refer to LAN-13, "How to Use CAN Communication Signal Chart" for how to use CAN communication signalchart

(Resistance of approx 120 Ω) Generates a potential difference between CAN-H and CAN-L.

Component System description

CAN communication unit

ABS actuator and electric unit (control unit) × ×

Air bag diagnosis sensor unit × ×

A/C compressor request signal T R

Accelerator pedal position signal T R

Closed throttle position signal T R

Cooling fan speed request signal T R

Trang 28

< SYSTEM DESCRIPTION > [CAN]

SYSTEM

Fuel consumption monitor signal T R

Malfunctioning indicator lamp signal T R

Power generation command value signal* T R

ABS malfunction signal T R

Vehicle speed signal (ABS) T R R R R

Front wiper stop position signal T R High beam status signal R T

Low beam status signal R T

Overdrive control switch signal R T

Vehicle speed signal (Meter) R R R T R

Trang 29

PN

*: With battery current sensor (with battery temperature sensor)

NOTE:

CAN data of the air bag diagnosis sensor unit is not used by usual service work, thus it is omitted

Theft warning horn request signal R T

Trang 30

< WIRING DIAGRAM > [CAN]

Trang 31

PN

ABMIA3225GB

Trang 32

< WIRING DIAGRAM > [CAN]

CAN SYSTEM

ABMIA3226GB

Trang 33

PN

ABMIA3227GB

Trang 34

< WIRING DIAGRAM > [CAN]

CAN SYSTEM

ABMIA3228GB

Trang 35

DIAGNOSIS AND REPAIR WORKFLOW

O

PN

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

Interview Sheet INFOID:0000000007206363

NOTE:

Refer to LAN-14, "Trouble Diagnosis Procedure" for how to use interview sheet

Trang 36

< DTC/CIRCUIT DIAGNOSIS > [CAN]

MALFUNCTION AREA CHART

DTC/CIRCUIT DIAGNOSIS

MALFUNCTION AREA CHART

Main Line INFOID:0000000007206364

Branch Line INFOID:0000000007206365

Short Circuit INFOID:0000000007206366

Malfunction area Reference Main line between IPDM E/R and data link connector LAN-37, "Diagnosis Procedure"

Malfunction area Reference ECM branch line circuit LAN-38, "Diagnosis Procedure"

ABS actuator and electric unit (control unit) branch line circuit LAN-39, "Diagnosis Procedure"

IPDM E/R branch line circuit LAN-40, "Diagnosis Procedure"

TCM branch line circuit LAN-41, "Diagnosis Procedure"

Air bag diagnosis sensor unit branch line circuit LAN-42, "Diagnosis Procedure"

Data link connector branch line circuit LAN-43, "Diagnosis Procedure"

EPS control unit branch line circuit LAN-44, "Diagnosis Procedure"

Combination meter branch line circuit LAN-45, "Diagnosis Procedure"

Steering angle sensor branch line circuit LAN-46, "Diagnosis Procedure"

BCM branch line circuit LAN-47, "Diagnosis Procedure"

Malfunction area Reference CAN communication circuit LAN-48, "Diagnosis Procedure"

Trang 37

MAIN LINE BETWEEN IPDM-E AND DLC CIRCUIT

O

PN

MAIN LINE BETWEEN IPDM-E AND DLC CIRCUIT

Diagnosis Procedure INFOID:0000000007206367

1.CHECK CONNECTOR

1 Turn the ignition switch OFF

2 Disconnect the battery cable from the negative terminal

3 Check the following terminals and connectors for damage, bend and loose connection (connector sideand harness side)

- Harness connector E7

- Harness connector M69

Is the inspection result normal?

YES >> GO TO 2

NO >> Repair the terminal and connector

2.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

1 Disconnect the following harness connectors

- IPDM E/R

- Harness connectors E7 and M69

2 Check the continuity between the IPDM E/R harness connector and the harness connector

Is the inspection result normal?

YES >> GO TO 3

NO >> Repair the main line between the IPDM E/R and the harness connector E7

3.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Check the continuity between the harness connector and the data link connector

Is the inspection result normal?

YES (Present error)>>Check CAN system type decision again

YES (Past error)>>Error was detected in the main line between the IPDM E/R and the data link connector

NO >> Repair the main line between the harness connector M69 and the data link connector

IPDM E/R harness connector Harness connector

Continuity Connector No Terminal No Connector No Terminal No.

Harness connector Data link connector

Continuity Connector No Terminal No Connector No Terminal No.

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