NISSAN LATIO 2008 Service Repair Manual

INSTRUMENT PANEL ASSEMBLY
IP-25
< ON-VEHICLE REPAIR >
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Remove the four screws, and then remove front cup holder from center console.
Assembly
Assembly is in the reverse order of disassembly.
COMBINATION METER
Disassembly
Disengage the eight tabs to separate front cover (1) from the unified
meter control unit assembly (2).
Assembly
Assembly is in the reverse order of disassembly.
1. Center console 2. Front cup holder
LIIA2556E
LIIA2582E

LAN-1
ELECTRICAL
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SECTION LAN
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LAN
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CONTENTS
LAN SYSTEM
CAN FUNDAMENTAL
PRECAUTION ...............................................
5
PRECAUTIONS ...................................................5
Precautions for Trouble Diagnosis ............................5
Precautions for Harness Repair ................................5
FUNCTION DIAGNOSIS ...............................6
CAN COMMUNICATION SYSTEM .....................6
System Description ...................................................6
System Diagram ........................................................6
CAN Communication Control Circuit .........................7
DIAG ON CAN .....................................................8
Description ................................................................8
System Diagram ........................................................8
TROUBLE DIAGNOSIS ......................................9
Condition of Error Detection ......................................9
Symptom When Error Occurs in CAN Communi-
cation System ............................................................
9
CAN Diagnosis with CONSULT-III ..........................12
Self-Diagnosis .........................................................12
CAN Diagnostic Support Monitor ............................12
How to Use CAN Communication Signal Chart ......14
BASIC INSPECTION ...................................15
DIAGNOSIS AND REPAIR WORKFLOW .........15
Trouble Diagnosis Flow Chart .................................15
Trouble Diagnosis Procedure ..................................15
CAN
HOW TO USE THIS MANUAL .....................
20
HOW TO USE THIS SECTION ...........................20
Caution ....................................................................20
Abbreviation List ......................................................20
PRECAUTION ..............................................21
PRECAUTIONS .................................................21
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .................................................................
21
Precautions for Trouble Diagnosis ..........................21
Precautions for Harness Repair ..............................21
BASIC INSPECTION ...................................22
DIAGNOSIS AND REPAIR WORKFLOW ........22
Interview Sheet ........................................................22
FUNCTION DIAGNOSIS ..............................23
CAN COMMUNICATION SYSTEM ...................23
CAN System Specification Chart .............................23
CAN Communication Signal Chart ..........................23
COMPONENT DIAGNOSIS .........................26
CAN COMMUNICATION SYSTEM ...................26
Component Parts Location ......................................26
Schematic ................................................................27
Wiring Diagram - CAN - ...........................................28
MALFUNCTION AREA CHART ........................30
Main Line .................................................................30
Branch Line .............................................................30
Short Circuit .............................................................30
MAIN LINE BETWEEN DLC AND ABS CIR-
CUIT ..................................................................
31
Diagnosis Procedure ...............................................31
MAIN LINE BETWEEN DLC AND TCM CIR-
CUIT ..................................................................
32
Diagnosis Procedure ...............................................32
ECM BRANCH LINE CIRCUIT .........................33
Diagnosis Procedure ...............................................33
BCM BRANCH LINE CIRCUIT .........................34
Diagnosis Procedure ...............................................34

LAN-2
DLC BRANCH LINE CIRCUIT ...........................35
Diagnosis Procedure ..............................................35
EPS BRANCH LINE CIRCUIT ...........................36
Diagnosis Procedure ..............................................36
I-KEY BRANCH LINE CIRCUIT ........................37
Diagnosis Procedure ..............................................37
M&A BRANCH LINE CIRCUIT ..........................38
Diagnosis Procedure ..............................................38
ABS BRANCH LINE CIRCUIT ..........................39
Diagnosis Procedure ..............................................39
TCM BRANCH LINE CIRCUIT ..........................40
Diagnosis Procedure ..............................................40
IPDM-E BRANCH LINE CIRCUIT .....................41
Diagnosis Procedure ..............................................41
CAN COMMUNICATION CIRCUIT ....................42
Diagnosis Procedure ..............................................42
CAN SYSTEM (TYPE 1)
COMPONENT DIAGNOSIS ........................
44
ECM BRANCH LINE CIRCUIT ..........................44
Diagnosis Procedure ..............................................44
BCM BRANCH LINE CIRCUIT ..........................45
Diagnosis Procedure ..............................................45
DLC BRANCH LINE CIRCUIT ...........................46
Diagnosis Procedure ..............................................46
EPS BRANCH LINE CIRCUIT ...........................47
Diagnosis Procedure ..............................................47
M&A BRANCH LINE CIRCUIT ..........................48
Diagnosis Procedure ..............................................48
IPDM-E BRANCH LINE CIRCUIT .....................49
Diagnosis Procedure ..............................................49
CAN COMMUNICATION CIRCUIT ....................50
Diagnosis Procedure ..............................................50
CAN SYSTEM (TYPE 2)
COMPONENT DIAGNOSIS ........................
52
ECM BRANCH LINE CIRCUIT ..........................52
Diagnosis Procedure ..............................................52
BCM BRANCH LINE CIRCUIT ..........................53
Diagnosis Procedure ..............................................53
DLC BRANCH LINE CIRCUIT ...........................54
Diagnosis Procedure ..............................................54
EPS BRANCH LINE CIRCUIT ...........................55
Diagnosis Procedure ..............................................55
I-KEY BRANCH LINE CIRCUIT ........................56
Diagnosis Procedure ...............................................56
M&A BRANCH LINE CIRCUIT ..........................57
Diagnosis Procedure ...............................................57
IPDM-E BRANCH LINE CIRCUIT .....................58
Diagnosis Procedure ...............................................58
CAN COMMUNICATION CIRCUIT ...................59
Diagnosis Procedure ...............................................59
CAN SYSTEM (TYPE 3)
COMPONENT DIAGNOSIS .......................
61
MAIN LINE BETWEEN DLC AND ABS CIR-
CUIT ...................................................................
61
Diagnosis Procedure ...............................................61
ECM BRANCH LINE CIRCUIT ..........................62
Diagnosis Procedure ...............................................62
BCM BRANCH LINE CIRCUIT ..........................63
Diagnosis Procedure ...............................................63
DLC BRANCH LINE CIRCUIT ..........................64
Diagnosis Procedure ...............................................64
EPS BRANCH LINE CIRCUIT ...........................65
Diagnosis Procedure ...............................................65
M&A BRANCH LINE CIRCUIT ..........................66
Diagnosis Procedure ...............................................66
ABS BRANCH LINE CIRCUIT ..........................67
Diagnosis Procedure ...............................................67
IPDM-E BRANCH LINE CIRCUIT .....................68
Diagnosis Procedure ...............................................68
CAN COMMUNICATION CIRCUIT ...................69
Diagnosis Procedure ...............................................69
CAN SYSTEM (TYPE 4)
COMPONENT DIAGNOSIS .......................
71
MAIN LINE BETWEEN DLC AND ABS CIR-
CUIT ...................................................................
71
Diagnosis Procedure ...............................................71
ECM BRANCH LINE CIRCUIT ..........................72
Diagnosis Procedure ...............................................72
BCM BRANCH LINE CIRCUIT ..........................73
Diagnosis Procedure ...............................................73
DLC BRANCH LINE CIRCUIT ..........................74
Diagnosis Procedure ...............................................74
EPS BRANCH LINE CIRCUIT ...........................75
Diagnosis Procedure ...............................................75
I-KEY BRANCH LINE CIRCUIT .....................

LAN-3
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LAN
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M&A BRANCH LINE CIRCUIT ..........................77
Diagnosis Procedure ...............................................77
ABS BRANCH LINE CIRCUIT ...........................78
Diagnosis Procedure ...............................................78
IPDM-E BRANCH LINE CIRCUIT ......................79
Diagnosis Procedure ...............................................79
CAN COMMUNICATION CIRCUIT ....................80
Diagnosis Procedure ...............................................80
CAN SYSTEM (TYPE 5)
COMPONENT DIAGNOSIS .........................
82
MAIN LINE BETWEEN DLC AND TCM CIR-
CUIT ....................................................................
82
Diagnosis Procedure ...............................................82
ECM BRANCH LINE CIRCUIT ...........................83
Diagnosis Procedure ...............................................83
BCM BRANCH LINE CIRCUIT ..........................84
Diagnosis Procedure ...............................................84
DLC BRANCH LINE CIRCUIT ...........................85
Diagnosis Procedure ...............................................85
EPS BRANCH LINE CIRCUIT ...........................86
Diagnosis Procedure ...............................................86
M&A BRANCH LINE CIRCUIT ..........................87
Diagnosis Procedure ...............................................87
TCM BRANCH LINE CIRCUIT ...........................88
Diagnosis Procedure ...............................................88
IPDM-E BRANCH LINE CIRCUIT ......................89
Diagnosis Procedure ...............................................89
CAN COMMUNICATION CIRCUIT ....................90
Diagnosis Procedure ...............................................90
CAN SYSTEM (TYPE 6)
COMPONENT DIAGNOSIS .........................
92
MAIN LINE BETWEEN DLC AND TCM CIR-
CUIT ....................................................................
92
Diagnosis Procedure ...............................................92
ECM BRANCH LINE CIRCUIT ...........................93
Diagnosis Procedure ...............................................93
BCM BRANCH LINE CIRCUIT ..........................94
Diagnosis Procedure ...............................................94
DLC BRANCH LINE CIRCUIT ...........................95
Diagnosis Procedure ...............................................95
EPS BRANCH LINE CIRCUIT ...........................96
Diagnosis Procedure ...............................................96
M&A BRANCH LINE CIRCUIT .........................97
Diagnosis Procedure ...............................................97
ABS BRANCH LINE CIRCUIT ..........................98
Diagnosis Procedure ...............................................98
TCM BRANCH LINE CIRCUIT ..........................99
Diagnosis Procedure ...............................................99
IPDM-E BRANCH LINE CIRCUIT ...................100
Diagnosis Procedure .............................................100
CAN COMMUNICATION CIRCUIT .................101
Diagnosis Procedure .............................................101
CAN SYSTEM (TYPE 7)
COMPONENT DIAGNOSIS .......................
103
MAIN LINE BETWEEN DLC AND TCM CIR-
CUIT ................................................................
103
Diagnosis Procedure .............................................103
ECM BRANCH LINE CIRCUIT .......................104
Diagnosis Procedure .............................................104
BCM BRANCH LINE CIRCUIT .......................105
Diagnosis Procedure .............................................105
DLC BRANCH LINE CIRCUIT ........................106
Diagnosis Procedure .............................................106
EPS BRANCH LINE CIRCUIT ........................107
Diagnosis Procedure .............................................107
M&A BRANCH LINE CIRCUIT .......................108
Diagnosis Procedure .............................................108
TCM BRANCH LINE CIRCUIT ........................109
Diagnosis Procedure .............................................109
IPDM-E BRANCH LINE CIRCUIT ...................110
Diagnosis Procedure .............................................110
CAN COMMUNICATION CIRCUIT .................111
Diagnosis Procedure .............................................111
CAN SYSTEM (TYPE 8)
COMPONENT DIAGNOSIS .......................
113
MAIN LINE BETWEEN DLC AND TCM CIR-
CUIT ................................................................
113
Diagnosis Procedure .............................................113
ECM BRANCH LINE CIRCUIT .......................114
Diagnosis Procedure .............................................114
BCM BRANCH LINE CIRCUIT .......................115
Diagnosis Procedure .............................................115
DLC BRANCH LINE CIRCUIT ........................116
Diagnosis Procedure .............................................116
EPS BRANCH LINE CIRCUIT ........................117

LAN-4
Diagnosis Procedure .............................................117
I-KEY BRANCH LINE CIRCUIT ......................118
Diagnosis Procedure .............................................118
M&A BRANCH LINE CIRCUIT ........................119
Diagnosis Procedure .............................................119
TCM BRANCH LINE CIRCUIT ........................120
Diagnosis Procedure .............................................120
IPDM-E BRANCH LINE CIRCUIT ...................121
Diagnosis Procedure .............................................121
CAN COMMUNICATION CIRCUIT ..................122
Diagnosis Procedure .............................................122
CAN SYSTEM (TYPE 9)
COMPONENT DIAGNOSIS .......................
124
MAIN LINE BETWEEN DLC AND TCM CIR-
CUIT .................................................................
124
Diagnosis Procedure .............................................124
ECM BRANCH LINE CIRCUIT ........................125
Diagnosis Procedure .............................................125
BCM BRANCH LINE CIRCUIT ........................126
Diagnosis Procedure .............................................126
DLC BRANCH LINE CIRCUIT .........................127
Diagnosis Procedure .............................................127
EPS BRANCH LINE CIRCUIT .........................128
Diagnosis Procedure .............................................128
M&A BRANCH LINE CIRCUIT ........................129
Diagnosis Procedure .............................................129
ABS BRANCH LINE CIRCUIT ........................130
Diagnosis Procedure .............................................130
TCM BRANCH LINE CIRCUIT ........................131
Diagnosis Procedure .............................................131
IPDM-E BRANCH LINE CIRCUIT ....................132
Diagnosis Procedure .............................................132
CAN COMMUNICATION CIRCUIT ..................133
Diagnosis Procedure .............................................133
CAN SYSTEM (TYPE 10)
COMPONENT DIAGNOSIS ......................
135
MAIN LINE BETWEEN DLC AND TCM CIR-
CUIT ..................................................................
135
Diagnosis Procedure .............................................135
ECM BRANCH LINE CIRCUIT .........................136
Diagnosis Procedure .............................................136
BCM BRANCH LINE CIRCUIT .........................137
Diagnosis Procedure .............................................137
DLC BRANCH LINE CIRCUIT .........................138
Diagnosis Procedure .............................................138
EPS BRANCH LINE CIRCUIT ..........................139
Diagnosis Procedure .............................................139
I-KEY BRANCH LINE CIRCUIT .......................140
Diagnosis Procedure .............................................140
M&A BRANCH LINE CIRCUIT .........................141
Diagnosis Procedure .............................................141
ABS BRANCH LINE CIRCUIT .........................142
Diagnosis Procedure .............................................142
TCM BRANCH LINE CIRCUIT .........................143
Diagnosis Procedure .............................................143
IPDM-E BRANCH LINE CIRCUIT ....................144
Diagnosis Procedure .............................................144
CAN COMMUNICATION CIRCUIT ..................145
Diagnosis Procedure .............................................145

PRECAUTIONS
LAN-5
< PRECAUTION >[CAN FUNDAMENTAL]
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PRECAUTION
PRECAUTIONS
Precautions for Trouble DiagnosisINFOID:0000000001711198
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 RepairINFOID:0000000001711199
• 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 communica-
tion line.
SKIB8766E
SKIB8767E

LAN-6
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
CAN COMMUNICATION SYSTEM
FUNCTION DIAGNOSIS
CAN COMMUNICATION SYSTEM
System DescriptionINFOID:0000000001711200
• 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 DiagramINFOID:0000000001711201
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-7, "
CAN Communication Control Circuit".

CAN COMMUNICATION SYSTEM
LAN-7
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
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CAN Communication Control CircuitINFOID:0000000001711202
*: These are the only control units wired with both ends of CAN communication system.
SKIB8713E
Component System description
CAN controller It controls CAN communication signal transmission and reception, error detection, etc.
Transceiver ICIt converts digital signal into CAN communication signal, and CAN communication signal into digital
signal.
Noise filter It eliminates noise of CAN communication signal.
Termination circuit
*
(Resistance of approx. 120 Ω)It produces potential difference.

LAN-8
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
DIAG ON CAN
DIAG ON CAN
DescriptionINFOID:0000000001711203
“Diag on CAN” is a diagnosis using CAN communication instead of previous DDL1 and DDL2 communication
lines, between control units and diagnosis unit.
System DiagramINFOID:0000000001711204
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 DIAGNOSIS
LAN-9
< FUNCTION DIAGNOSIS >[CAN FUNDAMENTAL]
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TROUBLE DIAGNOSIS
Condition of Error DetectionINFOID:0000000001711205
“U1000” or “U1001” is indicated on SELF-DIAG RESULTS on CONSULT-III if CAN 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 “U1000” OR “U1001” IS INDICATED EVEN THOUGH CAN COMMUNICATION SYSTEM IS
NORMAL
• Removal/installation of parts: Error may be detected when removing and installing CAN communication unit
and related parts while turning the ignition switch ON. (A DTC except for CAN communication may be
detected.)
• 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 ignition
switch 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).
• Error may be detected if reprogramming is not completed normally.
NOTE:
CAN communication system is normal if “U1000” or “U1001” is indicated on SELF-DIAG RESULTS of CON-
SULT-III under the above conditions. Erase the memory of the self-diagnosis of each unit.
Symptom When Error Occurs in CAN Communication SystemINFOID:0000000001711206
In CAN communication system, multiple units mutually transmit and receive signals. Each unit cannot transmit
and receive signals if any error occurs on CAN communication line. Under this condition, multiple control units
related to the root cause malfunction or go into fail-safe mode.
ERROR EXAMPLE
NOTE:
• Each vehicle differs in symptom of each unit under fail-safe mode and CAN communication line wiring.
• Refer to LAN-20, "
Abbreviation List" for the unit abbreviation.
Example: TCM branch line open circuit
SKIB8738E
Unit name Symptom
ECM Engine torque limiting is affected, and shift harshness increases.
BCM Reverse warning chime does not sound.