Infiniti F50. Manual - part 189

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INSTALLTION ....................................................115

Removal and Installation of Trunk Closure Control 
Unit ........................................................................115

REMOVAL ..........................................................115
INSTALLATION ..................................................115

Removal and Installation of Trunk Lid Weatherstrip 

..115

TRUNK LID AND FUEL FILLER LID OPENER  ......116

Component Part and Harness Connector Location 

..116

Wiring Diagram — T&FLID —  ...............................117
Wiring Diagram — T&FLID — / With Auto Trunk ..119
Terminals and Reference Value for BCM  ............. 120

TRUNK CLOSURE SYSTEM  ................................. 121

System Description  .............................................. 121
Operation Description  .......................................... 121
Removal and Installation of Auto Closure Unit ..... 121
Component Installation Location  .......................... 122
Wiring Diagram — T/CLOS —  ............................. 123
Terminal and Reference Value for Trunk Closure 
Control Unit  .......................................................... 124
Preliminary Check  ................................................ 124
Symptom Chart  .................................................... 124
Closure Control Unit Power Supply and Ground Cir-
cuit Check  ............................................................ 124
Trunk Lid Lock Switch Check  ............................... 125
Trunk Lid Striker Switch Check  ............................ 126

AUTO TRUNK SYSTEM ......................................... 128

Outline of System  ................................................. 128

OPERATING CONDITION  ................................ 128

Removal and Installation  ...................................... 128

PRECAUTIONS FOR WORK  ........................... 128
REMOVAL ......................................................... 129
INSTALLATION ................................................. 129

Component Installation Location  .......................... 130
Schematic ............................................................ 131
Wiring Diagram — A/TRNK —  ............................. 132
Terminals and Reference Value For Auto Trunk Con-
trol Unit ................................................................. 136
Preliminary Check  ................................................ 136
Symptom Chart  .................................................... 137
Auto Trunk Control Unit Power Supply and Ground 
Circuit Check  ........................................................ 137
Detention Switch Check  ....................................... 138
Trunk Motor Check ............................................... 140
Clutch Solenoid Check ......................................... 140
Trunk Lid Close Switch Check  ............................. 141
Weather strip Detection Switch System Check  .... 143
Lid Full Up Position Switch Check  ....................... 144
Trunk Lid Opener Switch Check ........................... 145
Trunk Open Signal Check  .................................... 147
Encoder Circuit Check  ......................................... 148

VEHICLE SECURITY (THEFT WARNING) SYSTEM 

. 150

Component Parts Harness Connector Location ... 150
System Description  .............................................. 151

DESCRIPTION .................................................. 151
POWER SUPPLY .............................................. 151
INITIAL CONDITION TO ACTIVATE THE SYS-
TEM ................................................................... 151
VEHICLE SECURITY SYSTEM ACTIVATION 
(WITH KEY OR ELECTRONIC KEY USED TO 

LOCK DOORS)  ................................................. 152
VEHICLE SECURITY SYSTEM ALARM OPER-
ATION ................................................................ 152
VEHICLE SECURITY SYSTEM DEACTIVATION 

. 152

PANIC ALARM OPERATION  ............................ 153

Schematic ............................................................. 154
Wiring Diagram — VEHSEC — ............................ 155
Terminal and Reference Value for BCM  ............... 163
Terminal and Reference Value for Driver Door Con-
trol Unit (LCU01) ................................................... 164
Terminal and Reference Value Passenger And Rear 
LH, RH Door Control Unit  ..................................... 164
CONSULT-II Function ........................................... 165

CONSULT-II INSPECTION PROCEDURE ........ 165

Trouble Diagnoses  ............................................... 166

WORK FLOW  .................................................... 166

Preliminary Check  ................................................ 167
Symptom Chart ..................................................... 168
Diagnostic Procedure 1  ........................................ 169

1 – 1 CHECK FRONT DOOR SWITCH ............. 169
1 – 2 CHECK REAR DOOR SWITCH  ............... 170
1 – 3 CHECK HOOD SWITCH  .......................... 172
1 – 4 CHECK TRUNK LID LOCK SWITCH  ....... 173

Diagnostic Procedure 2  ........................................ 173

CHECK SECURITY INDICATOR LAMP  ........... 173

Diagnostic Procedure 3  ........................................ 174

CHECK DOOR UNLOCK SENSOR  .................. 174

Diagnostic Procedure 4  ........................................ 177

4–1 CHECK DOOR KEY CYLINDER LOCK 
SWITCH ............................................................ 177
4–2 CHECK DOOR KEY CYLINDER UNLOCK 
SWITCH ............................................................ 179

Diagnostic Procedure 5  ........................................ 180

CHECK TRUNK LID KEY UNLOCK SIGNAL .... 180

Diagnostic Procedure 6  ........................................ 181

CHECK THEFT WARNING HORN ALARM  ...... 181

Diagnostic Procedure 7  ........................................ 183

CHECK THEFT WARNING HEADLAMP ALARM .183

Diagnostic Procedure 8  ........................................ 184

CHECK ACC POWER SUPPLY ........................ 184

ELECTRONIC KEY SYSTEM  ................................. 185

Component Parts and Connector Location  .......... 185
System Description ............................................... 185

SECURITY INDICATOR  .................................... 186
OUTLINE OF ELECTRONIC KEY OPERATION .186

Schematic ............................................................. 187
Wiring Diagram – NATS –  .................................... 188
Terminals and Reference Value for Steering Lock 
Control Unit ........................................................... 191
Terminals and Reference Value for NATS IMMU . 191
Work Flow ............................................................. 192
Diagnostic System Diagram  ................................. 193
Symptom Chart ..................................................... 193

SYMPTOM 1: ELECTRONIC KEY DOES NOT 
TURN ................................................................ 193
SYMPTOM 2: SECURITY INDICATOR DOES 
NOT FLASH  ...................................................... 193

Diagnostic Procedure 1  ........................................ 194

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Diagnostic Procedure 2  ........................................ 195
Diagnostic Procedure 3  ........................................ 196

IVIS (INFINITI VEHICLE IMMOBILIZER SYSTEM-
NATS) ...................................................................... 198

Component Parts and Harness Connector Location .198
System Description ............................................... 198
System Composition ............................................. 199

OUTLINE OF IVIS (NATS) FUNCTION  ............. 199

ECM Re-communicating Function  ........................ 200
Schematic ............................................................. 201
Wiring Diagram – NATS – ..................................... 202
Terminals and Reference Value for Steering Lock 
Control Unit ........................................................... 205
Terminals and Reference Value for NATS IMMU .. 205
CONSULT-II .......................................................... 206

CONSULT-II INSPECTION PROCEDURE ........ 206
CONSULT-II DIAGNOSTIC TEST MODE FUNC-
TION .................................................................. 206
HOW TO READ SELF-DIAGNOSTIC RESULTS .207
NATS SELF-DIAGNOSTIC RESULT ITEM 
CHART .............................................................. 207

Work Flow ............................................................. 208
Symptom Chart 1 .................................................. 209
Symptom Chart 2 .................................................. 210
Diagnostic System Diagram  ................................. 210
Diagnostic Procedure 1  ........................................ 210
Diagnostic Procedure 2  ........................................ 211
Diagnostic Procedure 3  ........................................ 213
Diagnostic Procedure 4  ........................................ 213
Diagnostic Procedure 5  ........................................ 214
Diagnostic Procedure 6  ........................................ 215
Removal and Installation NATS Antenna Amp.  .... 217

REMOVAL ......................................................... 217
INSTALLATION .................................................. 217

HOMELINK UNIVERSAL TRANSCEIVER  ............. 218

Wiring Diagram – TRNSCV –  ............................... 218
Trouble Diagnoses ................................................ 219

DIAGNOSTIC PROCEDURE  ............................ 219

BODY REPAIR  ........................................................ 221

Body Exterior Paint Color  ..................................... 221
Body Component Parts ......................................... 222

UNDERBODY COMPONENT PARTS  ...............222
BODY COMPONENT PARTS ............................224

Corrosion Protection  .............................................226

DESCRIPTION ..................................................226
ANTI-CORROSIVE WAX  ...................................227
UNDERCOATING ..............................................228

Body Sealing .........................................................229

DESCRIPTION ..................................................229

Body Construction .................................................232

BODY CONSTRUCTION ...................................232

Body Alignment .....................................................233

BODY CENTER MARKS  ...................................233
PANEL PARTS MATCHING MARKS  .................234
DESCRIPTION ..................................................235
ENGINE COMPARTMENT  ................................236
UNDERBODY ....................................................238
PASSENGER COMPARTMENT  ........................240
REAR BODY ......................................................242

Handling Precautions for Plastics  .........................244

HANDLING PRECAUTIONS FOR PLASTICS  ..244
LOCATION OF PLASTIC PARTS  ......................245

Precautions in Repairing High Strength Steel  .......247

HIGH STRENGTH STEEL (HSS) USED IN NIS-
SAN VEHICLES .................................................247

Replacement Operations  ......................................250

DESCRIPTION ..................................................250
RADIATOR CORE SUPPORT  ...........................253
RADIATOR CORE SUPPORT (PARTIAL 
REPLACEMENT) ...............................................254
HOODLEDGE ....................................................255
HOODLEDGE (PARTIAL REPLACEMENT)  ......256
FRONT SIDE MEMBER  ....................................257
FRONT SIDE MEMBER (PARTIAL REPLACE-
MENT) ................................................................258
FRONT PILLAR  .................................................259
CENTER PILLAR ...............................................261
OUTER SILL  ......................................................262
REAR FENDER  .................................................263
REAR PANEL  ....................................................264
REAR FLOOR REAR .........................................265
REAR SIDE MEMBER EXTENSION  .................266

PRECAUTIONS

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PRECAUTIONS

PFP:00001

Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT 
BELT PRE-TENSIONER”

EIS0043C

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.

WARNING:

●

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

●

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

●

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.

Precautions for work

EIS000G9

●

After removing and installing the opening/closing parts, be sure to carry out fitting adjustments to check
their operational.

●

Check the lubrication level, damage, and wear of each part. If necessary, grease or replace it.

Wiring Diagnosis and trouble Diagnosis

EIS000GA

When you read wiring diagrams, refer to the followings:

●

GI-13, "How to Read Wiring Diagrams"

.

●

PG-2, "POWER SUPPLY ROUTING"

.

When you perform trouble diagnosis, refer to the followings: 

●

GI-9, "How to Follow Trouble Diagnoses"

.

●

GI-26, "How to Perform Efficient Diagnosis for an Electrical Incident"

.

Check for any Service bulletins before servicing the vehicle.

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PREPARATION

PREPARATION

PFP:00002

Special Service Tool

EIS000YZ

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Commercial Service Tool

EIS000Z0

Tool number
(Kent-Moore No.)
Tool name

Description

(J-39570)
Chassis ear

Location the noise

(J-43980)
NISSAN Squeak and 
Rattle Kit

Repairing the cause of noise

SIIA0993E

SIIA0994E

Tool name

Description

Engine ear

Location the noise

SIIA0995E