Wiring diagrams INFINITI M35 2006 Factory Service Manual

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GENERAL INFORMATION
A GENERAL INFORMATION
CONTENTS
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SECTION GI
Revision: 2006 January2006 M35/M45
GENERAL INFORMATION
PRECAUTIONS .......................................................... 3
Description ............................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS) (If
Equipped) ................................................................. 3
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect .......................................... 4
OPERATION PROCEDURE ................................. 4
Precautions for Procedures without Cowl Top Cover ..... 4
General Precautions ................................................ 4
Precautions for Three Way Catalyst ......................... 6
Precautions for Fuel (Unleaded Premium Gasoline
Recommended) ...................................................
..... 6
Precautions for Fuel (Unleaded Premium Gasoline
Required) ................................................................. 6
Precautions for Multiport Fuel Injection System or
Engine Control System ............................................ 7
Precautions for Hoses .............................................. 7
HOSE REMOVAL AND INSTALLATION ............... 7
HOSE CLAMPING ................................................ 7
Precautions for Engine Oils ...................................... 8
HEALTH PROTECTION PRECAUTIONS ............. 8
Precautions for Air Conditioning ............................... 8
HOW TO USE THIS MANUAL ................................... 9
Description ............................................................... 9
Terms ....................................................................... 9
Units ......................................................................... 9
Contents ................................................................... 9
Relation between Illustrations and Descriptions .... 10
Components ............................................................ 11
SYMBOLS ........................................................
.... 11
How to Follow Trouble Diagnoses .......................... 12
DESCRIPTION .................................................... 12
HOW TO FOLLOW TEST GROUPS IN TROU-
BLE DIAGNOSES ............................................... 12
HARNESS WIRE COLOR AND CONNECTOR
NUMBER INDICATION ....................................... 13KEY TO SYMBOLS SIGNIFYING MEASURE-
MENTS OR PROCEDURES ............................... 14
How to Read Wiring Diagrams ............................... 16
CONNECTOR SYMBOLS ................................... 16
SAMPLE/WIRING DIAGRAM - EXAMPL - .......... 17
DESCRIPTION .................................................... 18
Abbreviations .......................................................... 24
SERVICE INFORMATION FOR ELECTRICAL INCI-
DENT ......................................................................... 25
How to Check Terminal ........................................... 25
CONNECTOR AND TERMINAL PIN KIT ............ 25
HOW TO PROBE CONNECTORS ...................... 25
How to Perform Efficient Diagnosis for an Electrical
Incident ................................................................... 28
WORK FLOW ...................................................... 28
INCIDENT SIMULATION TESTS ........................ 28
CIRCUIT INSPECTION ....................................
... 31
Control Units and Electrical Parts ........................... 36
PRECAUTIONS .................................................. 36
CONSULT-II CHECKING SYSTEM .......................... 38
Description .............................................................. 38
Function and System Application ........................... 38
Nickel Metal Hydride Battery Replacement ............ 39
Checking Equipment .............................................. 39
CONSULT-II Start Procedure .................................. 39
CONSULT-II Data Link Connector (DLC) Circuit .... 40
INSPECTION PROCEDURE .............................. 40
CIRCUIT DIAGRAM ............................................ 41
LIFTING POINT ......................................................... 42
Special Service Tools ............................................. 42
Garage Jack and Safety Stand and 2-Pole Lift ....... 42
Board-On Lift .......................................................... 43
TOW TRUCK TOWING ............................................. 44
Tow Truck Towing ................................................... 44
2WD MODELS .................................................... 44
AWD MODELS .................................................... 45
Vehicle Recovery (Freeing a Stuck Vehicle) ........... 45
FRONT ................................................................ 45
REAR .................................................................. 45
AUTOMATIC TRANSMISSION ........................... 46

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HOW TO USE THIS MANUAL
Revision: 2006 January2006 M35/M45
How to Read Wiring DiagramsNAS0007N
CONNECTOR SYMBOLS
Most of connector symbols in wiring diagrams are shown from the terminal side.
Connector symbols shown from the terminal side are enclosed
by a single line and followed by the direction mark.
Connector symbols shown from the harness side are enclosed
by a double line and followed by the direction mark.
Certain systems and components, especially those related to
OBD, may use a new style slide-locking type harness connector.
For description and how to disconnect, refer to PG section,
“Description”, “HARNESS CONNECTOR”.
Male and female terminals
Connector guides for male terminals are shown in black and
female terminals in white in wiring diagrams.
SAIA0257E
SGI363

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HOW TO USE THIS MANUAL
Revision: 2006 January2006 M35/M45
Harness Indication
Letter designations next to test meter probe indicate harness
(connector) wire color.
Connector numbers in a single circle M33 indicate harness con-
nectors.
Component Indication
Connector numbers in a double circle F211 indicate component connectors.
Switch Positions
Switches are shown in wiring diagrams as if the vehicle is in the “normal” condition.
A vehicle is in the “normal” condition when:
ignition switch is “OFF”,
doors, hood and trunk lid/back door are closed,
pedals are not depressed, and
parking brake is released.
AGI070
SGI860

HOW TO USE THIS MANUAL
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Detectable Lines and Non-Detectable Lines
In some wiring diagrams, two kinds of lines, representing wires, with different weight are used.
A line with regular weight (wider line) represents a “detectable
line for DTC (Diagnostic Trouble Code)”. A “detectable line for
DTC” is a circuit in which ECM can detect its malfunctions with
the on board diagnostic system.
A line with less weight (thinner line) represents a “non-detect-
able line for DTC”. A “non-detectable line for DTC” is a circuit in
which ECM cannot detect its malfunctions with the on board
diagnostic system.
SGI862-B

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HOW TO USE THIS MANUAL
Revision: 2006 January2006 M35/M45
Multiple Switch
The continuity of multiple switch is described in two ways as shown below.
The switch chart is used in schematic diagrams.
The switch diagram is used in wiring diagrams.
SGI875

SERVICE INFORMATION FOR ELECTRICAL INCIDENT
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Freezing
Water intrusion
Electrical load
Cold or hot start up
Get a thorough description of the incident from the customer. It is important for simulating the conditions of the
problem.
Vehicle Vibration
The problem may occur or become worse while driving on a rough road or when engine is vibrating (idle with
A/C on). In such a case, you will want to check for a vibration related condition. Refer to the following illustra-
tion.
CONNECTORS & HARNESS
Determine which connectors and wiring harness would affect the electrical system you are inspecting. Gently
shake each connector and harness while monitoring the system for the incident you are trying to duplicate.
This test may indicate a loose or poor electrical connection.
HINT
Connectors can be exposed to moisture. It is possible to get a thin film of corrosion on the connector termi-
nals. A visual inspection may not reveal this without disconnecting the connector. If the problem occurs inter-
mittently, perhaps the problem is caused by corrosion. It is a good idea to disconnect, inspect and clean the
terminals on related connectors in the system.
SENSORS & RELAYS
Gently apply a slight vibration to sensors and relays in the system you are inspecting.
This test may indicate a loose or poorly mounted sensor or relay.
ENGINE COMPARTMENT
There are several reasons a vehicle or engine vibration could cause an electrical complaint. Some of the
things to check for are:
Connectors not fully seated.
Wiring harness not long enough and is being stressed due to engine vibrations or rocking.
Wires laying across brackets or moving components.
Loose, dirty or corroded ground wires.
Wires routed too close to hot components.
To inspect components under the hood, start by verifying the integrity of ground connections. (Refer to Ground
Inspection described later.) First check that the system is properly grounded. Then check for loose connection
by gently shaking the wiring or components as previously explained. Using the wiring diagrams inspect the
wiring for continuity.
BEHIND THE INSTRUMENT PANEL
An improperly routed or improperly clamped harness can become pinched during accessory installation. Vehi-
cle vibration can aggravate a harness which is routed along a bracket or near a screw.
SGI839

IDX-8
ALPHABETICAL INDEX
U
Unified meter and A/C amp. ............................... DI-28
Upper link (front susp.) ..................... FSU-16, FSU-33
V
Vacuum hose (brake system) ............................ BR-21
Valve clearance(VK45DE) .............................. EM-222
Valve clearance(VQ35DE) ................................ EM-93
Valve guide ..................................................... EM-108
Valve guide(VK45DE) ..................................... EM-240
Valve lifter ......................................................... EM-88
Valve seat(VK45DE) ....................................... EM-242
Valve seat(VQ35DE) ...................................... EM-110
Valve spring(VK45DE) .................................... EM-243
Valve spring(VQ35DE) ................................... EM-111
Variable induction air control system (VIAS) EC-1324,
EC-1398
Vehicle security (theft warning) system ........... BL-220
Vehicle speed sensor (VSS) ............. EC-481, EC-597,
EC-1200
VEHSEC - Wiring diagram ............................... BL-226
VENT/V - Wiring diagram EC-429, EC-436, EC-1149,
EC-1156
VIAS - Wiring diagram ................................... EC-1400
VIAS/V - Wiring diagram ................................ EC-1325
VIN registration .................................... EC-95, EC-806
VSS A/T - Wiring diagram ................................ AT-121
W
WARN - Wiring diagram ..................................... DI-43
Warning chime .................................................... DI-60
Warning lamps .................................................... DI-40
Washer, front ..................................................... WW-4
Water control valve(VK45DE) ........................... CO-55
Water pump(VK45DE) ...................................... CO-53
Water pump(VQ35DE) ...................................... CO-24
Water temperature gauge ..................................... DI-5
Wheel alignment (front) ...................... FSU-6, FSU-23
Wheel alignment (rear) ..................................... RSU-5
Wheel balance ........................................ WT-7, MA-33
Wheel bearing (rear) ......................................... RAX-5
Wheel hub (rear) ............................................... RAX-5
Wheel sensor (VDC) ....................................... BRC-57
WINDOW - Wiring diagram ............................... GW-21
Window, door ...................................... GW-63, GW-67
Window, rear ..................................................... GW-61
Windshield ........................................................ GW-11
WIPER - Wiring diagram .................................. WW-13
Wiper, front ........................................................ WW-4
Wiring Diagram (Cell code) list .......................... PG-93
Wiring diagrams .................................................. GI-16