2007 NISSAN 350Z diagram

LAN-1
LAN SYSTEM
K ELECTRICAL
CONTENTS
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SECTION LAN
A
B
LAN
Revision: 2006 November2007 350Z
LAN SYSTEM
CAN FUNDAMENTAL
PRECAUTIONS .......................................................... 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-III) ......................... 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
COLLECT DATA ................................................. 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 for Battery Service .............................. 42
Precautions for Trouble Diagnosis ......................... 42
Precautions for Harness Repair ............................. 42
TROUBLE DIAGNOSIS ............................................ 44
CAN Diagnostic Support Monitor ............................ 44
MONITOR ITEM LIST (CONSULT-III) ................. 44
CAN System Specification Chart ............................ 48
VEHICLE EQUIPMENT IDENTIFICATION
INFORMATION .................................................... 48
CAN Communication Signal Chart ......................... 49
TYPE 1 ................................................................ 49
TYPE 2/TYPE 3 ................................................... 50
TYPE 4/TYPE 5 ................................................... 51
Schematic ............................................................... 54
Wiring Diagram — CAN — ..................................... 55
Interview Sheet ....................................................... 58
CAN System (Type 1) ............................................. 59
DIAGNOSIS SHEET ........................................... 59
CAN System (Type 2) ............................................. 60
DIAGNOSIS SHEET ........................................... 60
CAN System (Type 3) ............................................. 61
DIAGNOSIS SHEET ........................................... 61
CAN System (Type 4) ............................................. 62
DIAGNOSIS SHEET ........................................... 62
CAN System (Type 5) ............................................. 63
DIAGNOSIS SHEET ........................................... 63
Component Parts Location ..................................... 64
Harness Layout ...................................................... 64
Malfunction Area Chart ........................................... 65
MAIN LINE .......................................................... 65

LAN-4
[CAN FUNDAMENTAL]
SYSTEM DESCRIPTION
Revision: 2006 November2007 350Z
SYSTEM DESCRIPTIONPFP:00000
CAN Communication SystemNKS004PC

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: 2006 November2007 350Z
Diag on CANNKS004PD
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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D
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MA
B
LAN
Revision: 2006 November2007 350Z
TROUBLE DIAGNOSES WORK FLOWPFP:00004
Information Needed for Trouble DiagnosisNKS004PI
CAN communication system performs trouble diagnosis with the following tools.
How to Use CAN Communication Signal ChartNKS004PJ
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 copying on-board diagnosis data.
Diagnosis sheetFor detecting the root cause. (Diagnosis sheet includes system diagram for every CAN system
type)
ECU list
(On the “CAN DIAG SUP-
PORT MNTR”)
For checking the condition of control units and the status of CAN communication. SELF-DIAG RESULTS
(CONSULT-III)
CAN DIAG SUPPORT MNTR
(CONSULT-III)
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

TROUBLE DIAGNOSIS
LAN-55
[CAN]
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LAN
Revision: 2006 November2007 350Z
Wiring Diagram — CAN —NKS004PX
TKWT5781E

TROUBLE DIAGNOSIS
LAN-69
[CAN]
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LAN
Revision: 2006 November2007 350Z
VDC/TCS/ABS Control Unit Branch Line CircuitNKS0054P
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).
–VDC/TCS/ABS control unit connector
–Harness connector B101
–Harness connector M73
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
2. CHECK HARNESS FOR OPEN CIRCUIT
1. Disconnect the connector of VDC/TCS/ABS control unit.
2. Check the resistance between the VDC/TCS/ABS control unit harness connector terminals.
OK or NG
OK >> GO TO 3.
NG >> Repair the VDC/TCS/ABS control unit branch line.
3. CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the VDC/TCS/ABS control unit. Refer to BRC-87, "
Wiring
Diagram — VDC —" .
OK or NG
OK >>
Present error: Replace the VDC/TCS/ABS control unit. Refer to BRC-129, "Removal and Instal-
lation" .

Past error: Error was detected in the VDC/TCS/ABS control unit branch line.
NG >> Repair the power supply and the ground circuit.
TCM Branch Line CircuitNKS0054Q
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).
–A/T assembly connector
–Harness connector F102
–Harness connector M72
OK or NG
OK >> GO TO 2.
NG >> Repair the terminal and connector.
VDC/TCS/ABS control unit harness connector
Resistance (Ω)
Connector No. Terminal No.
B114 61 63 Approx. 54 – 66