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POWER SUPPLY, GROUND & CIRCUIT ELEMENTS


K ELECTRICAL

                                                                                                                                                                   A




   POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
                                                                                                   SECTION                    PG                                   B



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                                                                                                                                                                   D


                                                                                                                                                                   E
                                                                   CONTENTS
POWER SUPPLY ROUTING CIRCUIT ..................... 3                      .        GROUND .................................................................. 31
                                                                                                                                                          .        F
  Schematic ............................................................... 3
                                                                          .         Ground Distribution ................................................ 31
                                                                                                                                                          .
  Wiring Diagram - POWER - .................................... 4         .           MAIN HARNESS ................................................ 31    .
    BATTERY POWER SUPPLY - IGNITION SW. IN                                            ENGINE ROOM HARNESS ............................... 34              .        G
    ANY POSITION .................................................... 4   .           ENGINE HARNESS/VK ENGINE MODELS ....... 37                          .
    ACCESSORY POWER SUPPLY - IGNITION SW.                                             ENGINE HARNESS/VQ ENGINE MODELS ...... 38                           .
    IN "ACC" OR "ON" ............................................. 10     .           ENGINE CONTROL HARNESS/VK ENGINE
                                                                                                                                                                   H
    IGNITION POWER SUPPLY - IGNITION SW. IN                                           MODELS ............................................................ 39
                                                                                                                                                          .
    "ON" AND/OR "START" ...................................... 12         .           ENGINE CONTROL HARNESS/VQ ENGINE
  Fuse ...................................................................... 17
                                                                          .           MODELS ............................................................ 40
                                                                                                                                                          .
  Fusible Link ........................................................... 17
                                                                          .           BODY HARNESS ............................................... 41     .         I
  Circuit Breaker ...................................................... 17
                                                                          .           BODY NO. 2 HARNESS .................................... 44          .
IPDM E/R (INTELLIGENT POWER DISTRIBUTION                                              ROOM LAMP HARNESS ................................... 45            .
MODULE ENGINE ROOM) ..................................... 18              .        HARNESS ................................................................ 46
                                                                                                                                                          .        J
  System Description ............................................... 18   .         Harness Layout ..................................................... 46
                                                                                                                                                          .
    SYSTEMS CONTROLLED BY IPDM E/R .......... 18                          .           HOW TO READ HARNESS LAYOUT ................ 46                      .
    CAN COMMUNICATION LINE CONTROL ........ 18                            .           OUTLINE ............................................................ 47
                                                                                                                                                          .
                                                                                                                                                                   PG
    IPDM E/R STATUS CONTROL .......................... 19                 .           MAIN HARNESS ................................................ 48    .
  CAN Communication System Description ............. 19                   .           ENGINE ROOM HARNESS ............................... 51              .
  CAN Communication Unit ..................................... 19         .           ENGINE HARNESS/VK ENGINE MODELS ....... 54                          .
  Function of Detecting Ignition Relay Malfunction ... 19                             ENGINE HARNESS/VQ ENGINE MODELS ...... 55                           .        L
  CONSULT-II Function (IPDM E/R) ........................ 20              .           ENGINE CONTROL HARNESS/VK ENGINE
    CONSULT-II INSPECTION PROCEDURE ........ 20                           .           MODELS ............................................................ 56
                                                                                                                                                          .
    SELF-DIAG RESULTS ....................................... 21          .           ENGINE CONTROL HARNESS/VQ ENGINE                                             M
    DATA MONITOR ................................................ 22      .           MODELS ............................................................ 58
                                                                                                                                                          .
    ACTIVE TEST .................................................... 22   .           BODY HARNESS ............................................... 60     .
  Auto Active Test .................................................... 24.           BODY NO. 2 HARNESS .................................... 62          .
    DESCRIPTION ................................................... 24    .           ROOM LAMP HARNESS ................................... 63            .
    OPERATION PROCEDURE .............................. 24                 .           FRONT DOOR HARNESS ................................. 64             .
    INSPECTION IN AUTO ACTIVE TEST MODE ... 24                                        REAR DOOR HARNESS ................................... 65            .
  Schematic ............................................................. 26
                                                                          .           BACK DOOR HARNESS ................................... 66            .
  IPDM E/R Terminal Arrangement .......................... 27             .         Wiring Diagram Codes (Cell Codes) ..................... 67            .
  IPDM E/R Power/Ground Circuit Inspection ......... 28                   .        ELECTRICAL UNITS LOCATION ........................... 70               .
  Inspection With CONSULT-II (Self-Diagnosis) ...... 29                   .         Electrical Units Location ........................................ 70 .
  Removal and Installation of IPDM E/R .................. 30              .           ENGINE COMPARTMENT ................................. 70             .
    REMOVAL .......................................................... 30 .           PASSENGER COMPARTMENT ........................ 71                   .
    INSTALLATION .................................................. 30    .           LUGGAGE COMPARTMENT ............................. 73                .
                                                                                   HARNESS CONNECTOR ........................................ 74          .
                                                                                    Description ............................................................. 74
                                                                                                                                                          .
                                                                                      HARNESS CONNECTOR (TAB-LOCKING


Revision: 2005 July                                                          PG-1                                                                   2005 FX
   TYPE) ................................................................. 74
                                                                       .        STANDARDIZED RELAY .........................................80         .
   HARNESS CONNECTOR (SLIDE-LOCKING                                              Description .............................................................80
                                                                                                                                                       .
   TYPE) ................................................................. 75
                                                                       .           NORMAL OPEN, NORMAL CLOSED AND
ELECTRICAL UNITS ............................................... 76    .           MIXED TYPE RELAYS .......................................80         .
 Terminal Arrangement ........................................... 76   .           TYPE OF STANDARDIZED RELAYS .................80                     .
SMJ (SUPER MULTIPLE JUNCTION) .................... 78                  .        FUSE BLOCK - JUNCTION BOX (J/B) ...................82                  .
 Terminal Arrangement ........................................... 78   .         Terminal Arrangement ............................................82   .
                                                                                FUSE, FUSIBLE LINK AND RELAY BOX ...............83                     .
                                                                                 Terminal Arrangement ............................................83   .




Revision: 2005 July                                                        PG-2                                                                  2005 FX
                      POWER SUPPLY ROUTING CIRCUIT

POWER SUPPLY ROUTING CIRCUIT                          PFP:24110
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Schematic                                                  AKS007VU




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                                                     TKWM2095E




Revision: 2005 July               PG-3                 2005 FX
                      POWER SUPPLY ROUTING CIRCUIT

Wiring Diagram - POWER -                                    AKS007VV

BATTERY POWER SUPPLY - IGNITION SW. IN ANY POSITION




                                                      TKWM0708E




Revision: 2005 July                 PG-4                2005 FX
                      POWER SUPPLY ROUTING CIRCUIT


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                                                     TKWM1306E




Revision: 2005 July               PG-5                 2005 FX
                      POWER SUPPLY ROUTING CIRCUIT




                                                     TKWB0264E




Revision: 2005 July               PG-6                 2005 FX
                      POWER SUPPLY ROUTING CIRCUIT


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                                                     TKWM0711E




Revision: 2005 July               PG-7                 2005 FX
                      POWER SUPPLY ROUTING CIRCUIT




                                                     TKWM0712E




Revision: 2005 July               PG-8                 2005 FX
                      POWER SUPPLY ROUTING CIRCUIT


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                                                     TKWM0713E




Revision: 2005 July               PG-9                 2005 FX
                      POWER SUPPLY ROUTING CIRCUIT

ACCESSORY POWER SUPPLY - IGNITION SW. IN "ACC" OR "ON"




                                                         TKWM0714E




Revision: 2005 July                PG-10                   2005 FX
                      POWER SUPPLY ROUTING CIRCUIT


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                                                     TKWM2097E




Revision: 2005 July              PG-11                 2005 FX
                      POWER SUPPLY ROUTING CIRCUIT

IGNITION POWER SUPPLY - IGNITION SW. IN "ON" AND/OR "START"




                                                              TKWM2098E




Revision: 2005 July                 PG-12                       2005 FX
                      POWER SUPPLY ROUTING CIRCUIT


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                                                     TKWM2099E




Revision: 2005 July              PG-13                 2005 FX
                      POWER SUPPLY ROUTING CIRCUIT




                                                     TKWM1096E




Revision: 2005 July              PG-14                 2005 FX
                      POWER SUPPLY ROUTING CIRCUIT


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                                                     TKWM0719E




Revision: 2005 July              PG-15                 2005 FX
                      POWER SUPPLY ROUTING CIRCUIT




                                                     TKWM2525E




Revision: 2005 July              PG-16                 2005 FX
                               POWER SUPPLY ROUTING CIRCUIT

Fuse                                                                           AKS007VW

                                                                                           A
q   If fuse is blown, be sure to eliminate cause of malfunction before
    installing new fuse.
q   Use fuse of specified rating. Never use fuse of more than speci-
    fied rating.                                                                           B
q   Do not partially install fuse; always insert it into fuse holder prop-
    erly.
                                                                                           C
q   Remove fuse for "ELECTRICAL PARTS (BAT)" if vehicle is not
    used for a long period of time.

                                                                                           D
                                                                             CEL083


Fusible Link                                                                    AKS007VX

                                                                                           E
A melted fusible link can be detected either by visual inspection or by
feeling with finger tip. If its condition is questionable, use circuit
tester or test lamp.
CAUTION:                                                                                   F
q    If fusible link should melt, it is possible that critical circuit
     (power supply or large current carrying circuit) is shorted.
     In such a case, carefully check and eliminate cause of mal-                           G
     function.
q    Never wrap outside of fusible link with vinyl tape. Important:
     Never let fusible link touch any other wiring harness, vinyl                          H
     or rubber parts.                                                        CKIM0195E



Circuit Breaker                                                                 AKS007VY


The PTC thermistor generates heat in response to current flow. The                          I
temperature (and resistance) of the thermistor element varies with
current flow. Excessive current flow will cause the element's temper-
ature to rise. When the temperature reaches a specified level, the                         J
electrical resistance will rise sharply to control the circuit current.
Reduced current flow will cause the element to cool. Resistance falls
accordingly and normal circuit current flow is allowed to resume.
                                                                                           PG


                                                                                           L
                                                                             SEL109W




                                                                                           M




Revision: 2005 July                                   PG-17                  2005 FX
      IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
                                                                                                                                  PFP:284B7

System Description                                                                                                                    AKS005S9


q  IPDM E/R (Intelligent Power Distribution Module Engine Room) integrates the relay box and fuse block
   which were originally placed in engine compartment. It controls integrated relay via IPDM E/R control cir-
   cuit.
q  IPDM E/R-integrated control circuit performs ON-OFF operation of relay, CAN communication control, oil
   pressure switch signal, and hood switch signal reception, etc.
q  It controls operation of each electrical part via ECM, BCM and CAN communication lines.
CAUTION:
None of the IPDM E/R-integrated relays can be removed.
SYSTEMS CONTROLLED BY IPDM E/R
1.     Lamp control
       Using CAN communication line, it receives signal from BCM and controls the following lamps:
       q Headlamps (Hi, Lo)

       q Parking, license plate and tail lamps

       q Tail lamps

       q Front fog lamps

2.     Wiper control
       Using CAN communication line, it receives signals from BCM and controls the front wipers.
3.     Rear window defogger relay control
       Using CAN communication line, it receives signals from BCM and controls the rear window defogger
       relay.
4.     A/C compressor control
       Using CAN communication line, it receives signals from ECM and controls the A/C compressor.
5.     Cooling fan control
       Using CAN communication line, it receives signals from ECM and controls cooling fan .
6.     Horn control
       Using CAN communication line, it receives signals from BCM and controls horn relay.
CAN COMMUNICATION LINE CONTROL
With CAN communication, by connecting each control unit using two communication lines (CAN L line, CAN H
line), it is possible to transmit maximum amount of information with minimum wiring. Each control unit can
transmit and receive data, and reads necessary information only.
1. Fail-safe control
     q When CAN communication with other control units is impossible, IPDM E/R performs fail-safe control.
         After CAN communication recovers normally, it also returns to normal control.
     q Operation of control parts by IPDM E/R during fail-safe mode is as follows:

               Controlled system                                                    Fail-safe mode
                                            q   With the ignition switch ON, the headlamp (low) is ON.
    Headlamp
                                            q   With the ignition switch OFF, the headlamp (low) is OFF.
                                            q   With the ignition switch ON, the parking, license plate and tail lamps is ON.
    Parking, license plate and tail lamps
                                            q   With the ignition switch OFF, the parking, license plate and tail lamps is OFF.
                                            q   With the ignition switch ON, the cooling fan HI operates.
    Cooling fan
                                            q   With the ignition switch OFF, the cooling fan stops.
                                            Until the ignition switch is turned off, the front wiper LO and HI remains in the same status it
    Front wiper
                                            was in just before fail-safe control was initiated.
    Rear window defogger                    Rear window defogger relay is OFF
    A/C compressor                          A/C compressor is OFF
    Front fog lamps                         Front fog lamp is OFF




Revision: 2005 July                                             PG-18                                                             2005 FX
    IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

IPDM E/R STATUS CONTROL
In order to save power, IPDM E/R switches status by itself based on each operating condition.                          A
1. CAN communication status
     q CAN communication is normally performed with other control units.
                                                                                                                       B
     q Individual unit control by IPDM E/R is normally performed.

     q When sleep request signal is received from BCM, mode is switched to sleep waiting status.

2. Sleep waiting status                                                                                                C
     q Process to stop CAN communication is activated.

     q All systems controlled by IPDM E/R are stopped. When 3 seconds have elapsed after CAN communi-
       cation with other control units is stopped, mode switches to sleep status.                                      D
3. Sleep status
     q IPDM E/R operates in low power mode.

     q CAN communication is stopped.                                                                                   E
     q When a change in CAN communication line is detected, mode switches to CAN communication status.

     q When a change hood switch or ignition switch signal is detected, mode switches to CAN communica-
       tion status.                                                                                                    F

CAN Communication System Description                                                                        AKS005SA


CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-       G
tiplex communication line with high data communication speed and excellent error detection ability. Modern
vehicles are equipped with many electronic control units and each control unit shares information and links
with other control units during operation (not independent). In CAN communication, control units are con-
nected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission            H
with less wiring. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication Unit                                                                                      AKS00AOF
                                                                                                                       I
Refer to LAN-30, "CAN Communication Unit" .
Function of Detecting Ignition Relay Malfunction                                                            AKS005SB
                                                                                                                     J
q   When contact point of integrated ignition relay is stuck and cannot be turned OFF, IPDM E/R turns ON tail
    and parking lamps for 10 minutes to indicate ignition relay malfunction.
q   When a state of ignition relay having built-in does not agree with a state of Ignition switch signal input by a PG
    CAN communication from BCM, IPDM E/R lets tail lamp relay operate.
           Ignition switch signal                        Ignition relay status          Tail lamp relay
                    ON                                           ON                           --                       L
                   OFF                                           OFF                          --
                    ON                                           OFF                          --
                                                                                                                       M
                   OFF                                           ON                    ON (10 minutes)
    NOTE:
    When the ignition switch is turned ON, the tail lamps are OFF.




Revision: 2005 July                                          PG-19                                        2005 FX
     IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

CONSULT-II Function (IPDM E/R)                                                                                            AKS005SC


CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.
     Inspection Item, Diagnosis Mode                                           Description
 SELF-DIAG RESULTS                     The IPDM E/R performs diagnosis of the CAN communication and self-diagnosis.
 DATA MONITOR                          The input/output data of the IPDM E/R is displayed in real time.
 CAN DIAG SUPPORT MNTR                 The result of transmit/receive diagnosis of CAN communication can be read.
 ACTIVE TEST                           The IPDM E/R sends a drive signal to electronic components to check their operation.


CONSULT-II INSPECTION PROCEDURE
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. With the ignition switch OFF, connect CONSULT-II and CON-
    SULT-II CONVERTER to the data link connector, then turn the
    ignition switch ON.




                                                                                                                       PBIB1503E



2.   Touch "START (NISSAN BASED VHCL)".




                                                                                                                       BCIA0029E



3.   Touch "IPDM E/R" on "SELECT SYSTEM" screen.
     If "IPDM E/R" is not indicated, refer to GI-39, "CONSULT-II Data
     Link Connector (DLC) Circuit" .




                                                                                                                       BCIA0030E




Revision: 2005 July                                      PG-20                                                        2005 FX
      IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)

4.    Select the desired part to be diagnosed on the "SELECT DIAG
      MODE" screen.                                                                                                                         A


                                                                                                                                            B



                                                                                                                                            C

                                                                                                                                BCIA0031E

                                                                                                                                            D
SELF-DIAG RESULTS
Operation Procedure
1.    Touch "SELF-DIAG RESULTS" on "SELECT DIAG MODE" screen.                                                                               E
2.    Check display content in self-diagnostic results.
Display Item List
                                                                                                     TIME                                   F
                            CONSULT-II
       Display Items                                  Malfunction detecting condition                                Possible causes
                            display code                                                       CRNT     PAST
 NO DTC IS
                                                                                                                                            G
 DETECTED.FURTHER
                                 --                                 --                          --          --             --
 TESTING MAY BE
 REQUIRED.
                                           q   If CAN communication reception/transmis-                                                     H
                                                                                                                 Any of or several items
                                               sion data has a malfunction, or if any of the                     below have errors.
                                               control units malfunction, data reception/
 CAN COMM CIRC                 U1000           transmission cannot be confirmed.                



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