LAN-1
LAN SYSTEM
K ELECTRICAL
CONTENTS
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SECTION LAN
A
B
LAN
Revision: June 20062007 Versa
CAN FUNDAMENTAL
PRECAUTIONS .......................................................... 3
Precautions When Using CONSULT-II ..................... 3
Precautions for Trouble Diagnosis ........................... 3
Precautions for Harness Repair ............................... 3
SYSTEM DESCRIPTION ............................................ 4
CAN Communication System ................................... 4
SYSTEM DIAGRAM .............................................. 4
CAN COMMUNICATION CONTROL CIRCUIT ..... 5
Diag on CAN ............................................................ 6
DESCRIPTION ...................................................... 6
SYSTEM DIAGRAM .............................................. 6
TROUBLE DIAGNOSIS .............................................. 7
Condition of Error Detection ..................................... 7
CAN COMMUNICATION SYSTEM ERROR ......... 7
WHEN INDICATED “U1000” OR “U1001” IS INDI-
CATED EVEN THOUGH CAN COMMUNICA-
TION SYSTEM IS NORMAL ................................. 7
Symptom When Error Occurs in CAN Communi-
cation System ........................................................... 8
ERROR EXAMPLE ............................................... 8
Self-Diagnosis ........................................................ 12
CAN Diagnostic Support Monitor ........................... 13
MONITOR ITEM (CONSULT-II) .......................... 13
MONITOR ITEM (ON-BOARD DIAGNOSIS) ...... 14
TROUBLE DIAGNOSES WORK FLOW .................. 15
Information Needed for Trouble Diagnosis ............. 15
How to Use CAN Communication Signal Chart ..... 15
Trouble Diagnosis Flow Chart ................................ 16
Trouble Diagnosis Procedure ................................. 17
INTERVIEW WITH CUSTOMER ......................... 17
INSPECTION OF VEHICLE CONDITION ........... 18
CHECK OF CAN SYSTEM TYPE (HOW TO USE
CAN SYSTEM TYPE SPECIFICATION CHART) ... 19
CREATE INTERVIEW SHEET ............................ 21
CREATE DATA SHEET ....................................... 22
CREATE DIAGNOSIS SHEET ............................ 24
DETECT THE ROOT CAUSE ............................. 25
CAN
INDEX FOR DTC ....................................................... 40
DTC No. Index ........................................................ 40
HOW TO USE THIS SECTION ................................. 41
Caution ................................................................... 41
Abbreviation List ..................................................... 41
PRECAUTIONS ........................................................ 42
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ................................................................. 42
Precautions When Using CONSULT-II ................... 42
Precautions for Trouble Diagnosis ......................... 42
Precautions for Harness Repair ............................. 42
TROUBLE DIAGNOSIS ............................................ 44
CAN Diagnostic Support Monitor ............................ 44
MONITOR ITEM LIST (CONSULT-II) .................. 44
CAN System Specification Chart ............................ 47
VEHICLE EQUIPMENT IDENTIFICATION
INFORMATION .................................................... 47
CAN Communication Signal Chart ......................... 48
TYPE 1/TYPE 2/TYPE 3/TYPE 4 ........................ 48
TYPE 5/TYPE 6 ................................................... 49
TYPE 7/TYPE 8/TYPE 9/TYPE 10 ...................... 50
Schematic ............................................................... 53
Wiring Diagram — CAN — ..................................... 54
Interview Sheet ....................................................... 56
Data Sheet .............................................................. 57
CONSULT-II DATA ATTACHMENT SHEET ........ 57
CAN System (Type 1) ............................................. 60
DIAGNOSIS SHEET ........................................... 60
CAN System (Type 2) ............................................. 61
DIAGNOSIS SHEET ........................................... 61
CAN System (Type 3) ............................................. 62
DIAGNOSIS SHEET ........................................... 62
CAN System (Type 4) ............................................. 63
DIAGNOSIS SHEET ........................................... 63
CAN System (Type 5) ............................................. 64
DIAGNOSIS SHEET ........................................... 64
CAN System (Type 6) ............................................. 65
DIAGNOSIS SHEET ........................................... 65
LAN-4
[CAN FUNDAMENTAL]
SYSTEM DESCRIPTION
Revision: June 20062007 Versa
SYSTEM DESCRIPTIONPFP:00000
CAN Communication SystemUKS005Y2
CAN communication is a multiplex communication system. This enables the system to transmit and
receive large quantities of data at high speed by connecting control units with two communication lines
(CAN-H and CAN-L).
Control units on the CAN network transmit signals using the CAN communication control circuit. They
receive only necessary signals from other control units to operate various functions.
CAN communication lines adopt twisted-pair line style (two lines twisted) for noise immunity.
SYSTEM DIAGRAM
Each control unit passes an electric current to the termination circuits when transmitting CAN communication
signal. The termination circuits produce an electrical potential difference between CAN-H and CAN-L. CAN
communication system transmits and receives CAN communication signals by the potential difference.
SKIB8887E
Component Description
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 Refer to LAN-5, "
CAN COMMUNICATION CONTROL CIRCUIT" .
LAN-6
[CAN FUNDAMENTAL]
SYSTEM DESCRIPTION
Revision: June 20062007 Versa
Diag on CANUKS005Y3
DESCRIPTION
“Diag on CAN” is a diagnosis using CAN communication instead of previous DDL1 and DDL2 communication
line, between control unit and diagnosis unit.
SYSTEM DIAGRAM
SKIB8714E
Name Harness Description
DDL1Tx
RxIt is used for trouble diagnosis. (CAN-H and CAN-L are used for controlling)
DDL2 K-LINE It is used for trouble diagnosis. (CAN-H and CAN-L are used for controlling)
Diag on CANCAN-H
CAN-LIt is used for trouble diagnosis and control.
TROUBLE DIAGNOSES WORK FLOW
LAN-15
[CAN FUNDAMENTAL]
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Revision: June 20062007 Versa
TROUBLE DIAGNOSES WORK FLOWPFP:00004
Information Needed for Trouble DiagnosisUKS005Y8
CAN communication system performs trouble diagnosis with the following tools.
How to Use CAN Communication Signal ChartUKS005Y9
The CAN communication signal chart lists the signals needed for trouble diagnosis. It is useful for detecting
the root cause by finding a signal related to the symptom, and by checking transmission and reception unit.
Tool Usage
Interview sheet For filling in vehicle information and interview with customer.
Data sheet For attaching CONSULT-II data or on-board diagnosis data.
Diagnosis sheetFor detecting the root cause. (Diagnosis sheet includes system diagram for every CAN system
type)
SELECT SYSTEM
(CONSULT-II)
For checking the condition of control units and the status of CAN communication. SELF-DIAG RESULTS
(CONSULT-II)
CAN DIAG SUPPORT MNTR
(CONSULT-II)
CAN communication signal
chartFor converting information received from a customer into CAN communication signal transmission
and reception. This information can be used to judge whether a circuit between control units is nor-
mal or abnormal.
Abbreviation list For checking abbreviations in CAN communication signal chart and diagnosis sheet.
SKIB8715E
LAN-54
[CAN]
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
Wiring Diagram — CAN —UKS005VS
BKWA0701E
LAN-76
[CAN]
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
EPS Control Unit Branch Line CircuitUKS005WM
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the EPS control unit for damage, bend and loose connection (unit
side and connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of EPS control unit.
2. Check the resistance between the EPS control unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the EPS control unit branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of EPS control unit. Refer to STC-9, "
Wiring Diagram — EPS
—" .
OK or NG
OK >>Present error: Replace the EPS control unit. Refer to PS-9, "Removal and Installation" .
Past error: Error was detected in the EPS control unit branch line.
NG >> Repair the power supply and the ground circuit.
Intelligent Key Unit Branch Line CircuitUKS005WN
INSPECTION PROCEDURE
1. CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the Intelligent Key unit for damage, bend and loose connection
(unit side and connector side).
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
EPS control unit harness connector
Resistance (Ω)
Connector No. Terminal No.
M53 9 16 Approx. 54 – 66
TROUBLE DIAGNOSIS
LAN-79
[CAN]
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LAN
Revision: June 20062007 Versa
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of TCM.
2. Check the resistance between the TCM harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the TCM branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of TCM. Refer to AT-183, "
MAIN POWER SUPPLY AND
GROUND CIRCUIT" (Models with A/T), CVT-42, "Circuit Diagram" (Models with CVT).
OK or NG
OK >>Present error: Replace the TCM. Refer to AT-228, "Removal and Installation" (Models with A/
T), CVT-190, "
Removal and Installation" (Models with CVT).
Past error: Error was detected in the TCM branch line.
NG >> Repair the power supply and the ground circuit.
IPDM E/R Branch Line CircuitUKS005WR
INSPECTION PROCEDURE
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 (unit side and con-
nector side).
–Models with ABS and/or TCM:
IPDM E/R connector
–Models without ABS and TCM:
IPDM E/R connector
Harness connector E7
Harness connector M69
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of IPDM E/R.
2. Check the resistance between the IPDM E/R harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the IPDM E/R branch line.
TCM harness connector
Resistance (Ω)
Connector No. Terminal No.
E31 5 6 Approx. 54 – 66
IPDM E/R harness connector
Resistance (Ω)
Connector No. Terminal No.
E46 41 40 Approx. 108 – 132
LT-1
LIGHTING SYSTEM
K ELECTRICAL
CONTENTS
C
D
E
F
G
H
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L
M
SECTION LT
A
B
LT
Revision: June 20062007 Versa PRECAUTIONS .......................................................... 4
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 4
HEADLAMP (FOR USA) ............................................ 5
Component Parts and Harness Connector Location ..... 5
System Description .................................................. 5
OUTLINE ............................................................... 5
HEADLAMP OPERATION .................................... 6
COMBINATION SWITCH READING FUNCTION ..... 6
EXTERIOR LAMP BATTERY SAVER CONTROL ..... 6
CAN COMMUNICATION SYSTEM DESCRIP-
TION ......................................................................... 6
Schematic ................................................................ 7
Wiring Diagram ........................................................ 8
Terminals and Reference Values for BCM ............. 12
Terminals and Reference Values for IPDM E/R ..... 12
How to Perform Trouble Diagnoses ....................... 12
Preliminary Check .................................................. 12
CHECK POWER SUPPLY AND GROUND CIR-
CUIT FOR BCM .................................................. 12
CHECK POWER SUPPLY AND GROUND CIR-
CUIT FOR IPDM E/R .......................................... 12
CONSULT-II Function (BCM) ................................. 12
CONSULT-II START PROCEDURE .................... 12
WORK SUPPORT ............................................... 12
DATA MONITOR ................................................. 12
ACTIVE TEST ..................................................... 13
SELF-DIAGNOSTIC RESULTS .......................... 13
CONSULT-II Function (IPDM E/R) ......................... 13
CONSULT-II START PROCEDURE .................... 13
DATA MONITOR ................................................. 14
ACTIVE TEST ..................................................... 14
Headlamp High Beam Does Not Illuminate (Both
Sides) ..................................................................... 14
Headlamp High Beam Does Not Illuminate (One
Side) ....................................................................... 17
High Beam Indicator Lamp Does Not Illuminate .... 18
Headlamp Low Beam Does Not Illuminate (Both
Sides) ..................................................................... 18Headlamp Low Beam Does Not Illuminate (One
Side) ....................................................................... 21
Headlamps Do Not Turn OFF ................................. 22
Aiming Adjustment .................................................. 23
PREPARATION BEFORE ADJUSTING .............. 23
LOW BEAM AND HIGH BEAM ........................... 23
ADJUSTMENT USING AN ADJUSTMENT
SCREEN (LIGHT/DARK BORDERLINE) ............ 24
Bulb Replacement .................................................. 25
HEADLAMP (HIGH/LOW) ................................... 25
PARKING (CLEARANCE) LAMP ........................ 25
FRONT TURN SIGNAL LAMP ............................ 25
Removal and Installation ........................................ 25
REMOVAL ........................................................... 25
INSTALLATION ................................................... 25
Disassembly and Assembly .................................... 26
DISASSEMBLY ................................................... 26
ASSEMBLY ......................................................... 26
HEADLAMP (FOR CANADA) - DAYTIME LIGHT
SYSTEM - .................................................................. 27
Component Parts and Harness Connector Location ... 27
System Description ................................................. 27
OUTLINE ............................................................. 27
HEADLAMP OPERATION ................................... 28
COMBINATION SWITCH READING FUNCTION ... 29
EXTERIOR LAMP BATTERY SAVER CONTROL ... 29
CAN Communication System Description .............. 29
Schematic ............................................................... 30
Wiring Diagram — DTRL — ................................... 31
Terminals and Reference Values for BCM .............. 35
Terminals and Reference Values for IPDM E/R ...... 35
How to Perform Trouble Diagnoses ....................... 35
Preliminary Check .................................................. 35
CHECK BCM CONFIGURATION ........................ 35
CHECK POWER SUPPLY AND GROUND CIR-
CUIT FOR BCM .................................................. 35
CHECK POWER SUPPLY AND GROUND CIR-
CUIT FOR IPDM E/R .......................................... 35
CONSULT-II Function (BCM) ................................. 35
CONSULT-II Function (IPDM E/R) ......................... 35