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K ELECTRICAL
A
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
SECTION PG B
C
D
E
CONTENTS
PRECAUTIONS ......................................................... 3 . GROUND CIRCUIT .................................................. 30 . F
Precautions for Supplemental Restraint System Ground Distribution ................................................ 30 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- MAIN HARNESS ................................................ 30 .
SIONER" ................................................................. 3
. ENGINE ROOM HARNESS ............................... 33 . G
Wiring Diagrams and Trouble Diagnosis ................. 3 . ENGINE CONTROL HARNESS ......................... 36 .
POWER SUPPLY ROUTING CIRCUIT ..................... 4 . BODY HARNESS ............................................... 37 .
Schematic ............................................................... 4
. BODY NO. 2 HARNESS .................................... 38 .
H
Wiring Diagram -- POWER -- ................................ 6 . BACK DOOR NO. 2 AND BACK DOOR HAR-
BATTERY POWER SUPPLY -- IGNITION SW. NESS .................................................................. 39
.
IN ANY POSITION ............................................... 6 . HARNESS ................................................................ 40
.
ACCESSORY POWER SUPPLY -- IGNITION Harness Layout ..................................................... 40 . I
SW. IN ACC OR ON ........................................... 12 . HOW TO READ HARNESS LAYOUT ................ 40 .
IGNITION POWER SUPPLY -- IGNITION SW. OUTLINE ............................................................ 41.
IN ON ................................................................. 13
. MAIN HARNESS ................................................ 42 . J
IGNITION POWER SUPPLY -- IGNITION SW. ENGINE ROOM HARNESS (RH VIEW) ............ 45 .
IN ON AND/OR START ...................................... 14 . ENGINE ROOM HARNESS (LH VIEW) ............. 49 .
IPDM E/R (INTELLIGENT POWER DISTRIBUTION ENGINE CONTROL HARNESS ......................... 51 .
PG
MODULE ENGINE ROOM) ..................................... 17 . CHASSIS HARNESS ......................................... 53 .
System Description ............................................... 17 . BODY HARNESS ............................................... 55 .
SYSTEMS CONTROLLED BY IPDM E/R .......... 17 . BODY NO. 2 HARNESS .................................... 57 .
CAN COMMUNICATION LINE CONTROL ........ 17 . ROOM LAMP HARNESS ................................... 59 . L
IPDM E/R STATUS CONTROL .......................... 18 . FRONT DOOR LH HARNESS ........................... 61 .
CAN Communication System Description ............. 18 . FRONT DOOR RH HARNESS ........................... 61 .
Function of Detecting Ignition Relay Malfunction ... 18 REAR DOOR LH HARNESS .............................. 62 . M
CONSULT-II Function (IPDM E/R) ........................ 19 . REAR DOOR RH HARNESS ............................. 62 .
CONSULT-II BASIC OPERATION ..................... 19 . BACK DOOR HARNESS ................................... 63 .
SELF-DIAGNOSTIC RESULTS ......................... 20 . Wiring Diagram Codes (Cell Codes) ..................... 65 .
DATA MONITOR ................................................ 20 . ELECTRICAL UNITS LOCATION ........................... 68 .
ACTIVE TEST .................................................... 21 . Electrical Units Location ........................................ 68 .
Auto Active Test .................................................... 22
. ENGINE COMPARTMENT ................................. 68 .
DESCRIPTION ................................................... 22 . PASSENGER COMPARTMENT ........................ 69 .
OPERATION PROCEDURE .............................. 22 . Fuse ....................................................................... 71
.
INSPECTION IN AUTO ACTIVE TEST MODE ... 23 Fusible Link ........................................................... 71
.
Schematic ............................................................. 25
. Circuit Breaker (Built Into BCM) ............................ 71 .
IPDM E/R Terminal Arrangement .......................... 26 . HARNESS CONNECTOR ........................................ 72 .
IPDM E/R Power/Ground Circuit Inspection ......... 27 . Description ............................................................. 72
.
Inspection with CONSULT-II (Self-Diagnosis) ....... 28 . HARNESS CONNECTOR (TAB-LOCKING
Removal and Installation of IPDM E/R .................. 29 . TYPE) ................................................................. 72
.
REMOVAL .......................................................... 29
. HARNESS CONNECTOR (SLIDE-LOCKING
INSTALLATION .................................................. 29 .
Revision: November 2005 PG-1 2005 Pathfinder
TYPE) ................................................................. 73
. MIXED TYPE RELAYS .......................................77 .
HARNESS CONNECTOR (LEVER LOCKING TYPE OF STANDARDIZED RELAYS .................77 .
TYPE) ................................................................. 74
. SUPER MULTIPLE JUNCTION (SMJ) .....................79 .
HARNESS CONNECTOR (DIRECT-CONNECT Terminal Arrangement ............................................79
.
SRS COMPONENT TYPE) ................................ 75 . FUSE BLOCK-JUNCTION BOX(J/B) ......................81 .
ELECTRICAL UNITS ............................................... 76 . Terminal Arrangement ............................................81
.
Terminal Arrangement ........................................... 76 . FUSE AND FUSIBLE LINK BOX .............................82 .
STANDARDIZED RELAY ......................................... 77 . Terminal Arrangement ............................................82
.
Description ............................................................. 77
. FUSE AND RELAY BOX ..........................................83.
NORMAL OPEN, NORMAL CLOSED AND Terminal Arrangement ............................................83
.
Revision: November 2005 PG-2 2005 Pathfinder
PRECAUTIONS
PRECAUTIONS PFP:00011
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EKS009X6
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
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 C
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: D
G 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. E
G 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. F
G 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.
G
Wiring Diagrams and Trouble Diagnosis EKS009X7
When you read wiring diagrams, refer to the following:
H
G Refer to GI-15, "How to Read Wiring Diagrams" in GI section.
G Refer to PG-4, "POWER SUPPLY ROUTING CIRCUIT" for power distribution.
When you perform trouble diagnosis, refer to the following: I
G Refer to GI-11, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES" in GI section.
G Refer to GI-27, "How to Perform Efficient Diagnosis for an Electrical Incident" in GI section.
J
PG
L
M
Revision: November 2005 PG-3 2005 Pathfinder
POWER SUPPLY ROUTING CIRCUIT
POWER SUPPLY ROUTING CIRCUIT PFP:24110
Schematic EKS009X8
For detailed ground distribution, refer to PG-30, "Ground Distribution" .
WKWA3193E
Revision: November 2005 PG-4 2005 Pathfinder
POWER SUPPLY ROUTING CIRCUIT
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA2522E
Revision: November 2005 PG-5 2005 Pathfinder
POWER SUPPLY ROUTING CIRCUIT
Wiring Diagram -- POWER -- EKS009X9
BATTERY POWER SUPPLY -- IGNITION SW. IN ANY POSITION
WKWA3194E
Revision: November 2005 PG-6 2005 Pathfinder
POWER SUPPLY ROUTING CIRCUIT
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA2524E
Revision: November 2005 PG-7 2005 Pathfinder
POWER SUPPLY ROUTING CIRCUIT
WKWA2525E
Revision: November 2005 PG-8 2005 Pathfinder
POWER SUPPLY ROUTING CIRCUIT
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA3195E
Revision: November 2005 PG-9 2005 Pathfinder
POWER SUPPLY ROUTING CIRCUIT
WKWA4499E
Revision: November 2005 PG-10 2005 Pathfinder
POWER SUPPLY ROUTING CIRCUIT
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA2528E
Revision: November 2005 PG-11 2005 Pathfinder
POWER SUPPLY ROUTING CIRCUIT
ACCESSORY POWER SUPPLY -- IGNITION SW. IN ACC OR ON
WKWA2529E
Revision: November 2005 PG-12 2005 Pathfinder
POWER SUPPLY ROUTING CIRCUIT
IGNITION POWER SUPPLY -- IGNITION SW. IN ON
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA4500E
Revision: November 2005 PG-13 2005 Pathfinder
POWER SUPPLY ROUTING CIRCUIT
IGNITION POWER SUPPLY -- IGNITION SW. IN ON AND/OR START
WKWA2531E
Revision: November 2005 PG-14 2005 Pathfinder
POWER SUPPLY ROUTING CIRCUIT
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA4501E
Revision: November 2005 PG-15 2005 Pathfinder
POWER SUPPLY ROUTING CIRCUIT
WKWA3197E
Revision: November 2005 PG-16 2005 Pathfinder
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PFP:284B7 A
System Description EKS009XA
G IPDM E/R (Intelligent Power Distribution Module Engine Room) integrates the relay box and fuse block
B
which were originally placed in engine compartment. It controls integrated relays via IPDM E/R control cir-
cuits.
G IPDM E/R-integrated control circuits perform ON-OFF operation of relays, CAN communication control,
etc. C
G It controls operation of each electrical component via ECM, BCM and CAN communication lines.
CAUTION:
None of the IPDM E/R integrated relays can be removed. D
SYSTEMS CONTROLLED BY IPDM E/R
1. Lamp control E
Using CAN communication lines, it receives signals from the BCM and controls the following lamps:
G Headlamps (High, Low)
G Parking lamps F
G Tail and license plate lamps
G Front fog lamps
2. Wiper control G
Using CAN communication lines, it receives signals from the BCM and controls the front wipers.
3. Daytime light relay control (Canada only)
Using CAN communication lines, it receives signals from the BCM and controls the daytime light relay. H
4. Rear window defogger relay control
Using CAN communication lines, it receives signals from the BCM and controls the rear window defogger
relay. I
5. A/C compressor control
Using CAN communication lines, it receives signals from the BCM and controls the A/C compressor
(magnetic clutch). J
6. Starter control
Using CAN communication lines, it receives signals from the BCM and controls the starter relay.
7. Cooling fan control PG
Using CAN communication lines, it receives signals from the ECM and controls the cooling fan relays.
8. Horn control
Using CAN communication lines, it receives signals from the BCM and controls the horn relay.
L
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 a maximum amount of information with minimum wiring. Each control unit can M
transmit and receive data, and reads necessary information only.
1. Fail-safe control
G When CAN communication with other control units is impossible, IPDM E/R performs fail-safe control.
After CAN communication returns to normal operation, it also returns to normal control.
G Operation of control parts by IPDM E/R during fail-safe mode is as follows:
Controlled system Fail-safe mode
G With the ignition switch ON, the headlamp (low) is ON.
Headlamp
G With the ignition switch OFF, the headlamp (low) is OFF.
Tail, license plate and parking lamps G With the ignition switch ON, the tail lamp relay is ON.
G With the ignition switch OFF, the tail lamp relay is OFF.
G With the ignition switch ON, the cooling fan HIGH operates.
Cooling fan
G With the ignition switch OFF, the cooling fan stops.
Until the ignition switch is turned off, the front wiper LOW and HIGH remains in the same
Front wiper
status it was in just before fail-safe control was initiated.
Revision: November 2005 PG-17 2005 Pathfinder
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Controlled system Fail-safe mode
Rear window defogger Rear window defogger relay OFF
A/C compressor A/C compressor OFF
Front fog lamps Front fog lamp relay OFF
IPDM E/R STATUS CONTROL
In order to save power, IPDM E/R switches status by itself based on each operating condition.
1. CAN communication status
G CAN communication is normally performed with other control units.
G Individual unit control by IPDM E/R is normally performed.
G When sleep request signal is received from BCM, mode is switched to sleep waiting status.
2. Sleep waiting status
G Process to stop CAN communication is activated.
G 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.
3. Sleep status
G IPDM E/R operates in low current-consumption mode.
G CAN communication is stopped.
G When a change in CAN communication signal is detected, mode switches to CAN communication sta-
tus.
G When a change in ignition switch signal is detected, mode switches to CAN communication status.
CAN Communication System Description EKS009XB
Refer to LAN-24, "CAN COMMUNICATION" .
Function of Detecting Ignition Relay Malfunction EKS009XC
G When the integrated ignition relay is stuck in a "closed contact" position and cannot be turned OFF, IPDM
E/R turns ON tail and parking lamps for 10 minutes to indicate IPDM E/R malfunction.
G When the state of the integrated ignition relay does not agree with the state of the ignition switch signal
received via CAN communication, the IPDM E/R activates the tail lamp relay.
Ignition switch signal Ignition relay status Tail lamp relay
ON ON --
OFF OFF --
ON OFF --
OFF ON ON (10 minutes)
NOTE:
When the ignition switch is turned ON, the tail lamps are OFF.
Revision: November 2005 PG-18 2005 Pathfinder
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
CONSULT-II Function (IPDM E/R) EKS009XD
A
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
IPDM E/R diagnostic Mode Description
SELF-DIAG RESULTS Displays IPDM E/R self-diagnosis results. B
DATA MONITOR Displays IPDM E/R input/output data in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read.
C
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
CONSULT-II BASIC OPERATION
D
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 carries out CAN communication.
1. With the ignition switch OFF, connect CONSULT-II and CON- E
SULT-II CONVERTER to the data link connector, then turn igni-
tion switch ON.
F
G
H
BBIA0538E
2. Touch "START (NISSAN BASED VHCL)".
I
J
PG
BCIA0029E
L
3. Touch "IPDM E/R" on "SELECT SYSTEM" screen.
G If "IPDM E/R" is not displayed, go to GI-39, "CONSULT-II Data
Link Connector (DLC) Circuit" . M
BCIA0030E
Revision: November 2005 PG-19 2005 Pathfinder
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
4. Select the desired part to be diagnosed on the "SELECT DIAG
MODE" screen.
BCIA0031E
SELF-DIAGNOSTIC RESULTS
Operation Procedure
1. Touch "SELF-DIAG RESULTS" on "SELECT DIAG MODE"
screen.
2. Self-diagnosis results are displayed.
WKIA1264E
Display Item List
TIME Possible
CONSULT-II
Display items Malfunction detection causes
display code CRNT PAST
NO DTC IS DETECTED.
FURTHER TESTING -- -- -- -- --
MAY BE REQUIRED.
Any of items
G If CAN communication reception/transmission listed below
data has a malfunction, or if any of the control have errors:
units fail, data reception/transmission cannot be
CAN COMM CIRC U1000 X X G TRANSMIT
confirmed.
DIAG
G When the data in CAN communication is not
G ECM
received before the specified time.
G BCM/SEC
NOTE:
The details for display of the period are as follows:
G CRNT: Error currently detected with IPDM E/R.
G PAST: Error detected in the past and placed in IPDM E/R memory.
DATA MONITOR
Operation Procedure
1. Touch "DATA MONITOR" on "SELECT DIAG MODE" screen.
2. Touch "ALL SIGNALS", "MAIN SIGNALS" or "SELECTION FROM MENU" on the "DATA MONITOR"
screen.
ALL SIGNALS All signals will be monitored.
MAIN SIGNALS Monitors the predetermined item(s).
SELECTION FROM MENU Selects and monitors individual signal(s).
3. Touch "START".
Revision: November 2005 PG-20 2005 Pathfinder
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
4. When "SELECTION FROM MENU" is selected, touch items to be monitored. When "ALL SIGNALS" is
selected, all the items will be monitored. When "MAIN SIGNALS" is selected, predetermined items are A
monitored.
5. Touch "RECORD" while monitoring to record the status of the item being monitored. To stop recording,
touch "STOP". B
All Signals, Main Signals, Selection From Menu
Monitor item selection
Item name
CONSULT-II
Display or unit Description
C
screen display ALL MAIN SELECTION
SIGNALS SIGNALS FROM MENU
MOTOR FAN
Motor fan request 1/2/3/4 X X X Signal status input from ECM D
REQ
Compressor
AC COMP REQ ON/OFF X X X Signal status input from BCM
request
E
Parking, license
plate, and tail TAIL & CLR REQ ON/OFF X X X Signal status input from BCM
lamp request
Headlamp low F
HL LO REQ ON/OFF X X X Signal status input from BCM
beam request
Headlamp high
HL HI REQ ON/OFF X X X Signal status input from BCM
beam request G
Front fog lamps
FR FOG REQ ON/OFF X X X Signal status input from BCM
request
Front wiper H
FR WIP REQ STOP/1LO/LO/HI X X X Signal status input from BCM
request
WIP AUTO
Wiper auto stop ACT P/STOP P X X X Output status of IPDM E/R
STOP I
OFF/LS/HS/
Wiper protection WIP PROT X X X Control status of IPDM E/R
BLOCK
Starter request ST RLY REQ ON/OFF X X Status of input signal NOTE J
Ignition relay Ignition relay status monitored
IGN RLY ON/OFF X X X
status with IPDM E/R
Rear defogger PG
RR DEF REQ ON/OFF X X X Signal status input from BCM
request
Signal status input from IPDM
Hood switch HOOD SW OFF X
E/R (function is not enabled) L
Theft warning
THFT HRN REQ ON/OFF X X Signal status input from BCM
horn request
Horn chirp HORN CHIRP ON/OFF X X Output status of IPDM E/R M
Daytime lights
DTRL REQ ON/OFF X X Signal status input from BCM
request
NOTE:
Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is in ACC position,
display may not be correct.
ACTIVE TEST
Operation Procedure
1. Touch "ACTIVE TEST" on "SELECT DIAG-MODE" screen.
2. Touch item to be tested, and check operation.
3. Touch "START".
4. Touch "STOP" while testing to stop the operation.
Revision: November 2005 PG-21 2005 Pathfinder
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Test name CONSULT-II screen display Description
With a certain ON-OFF operation, the rear defogger relay can be oper-
Rear defogger output REAR DEFOGGER
ated.
With a certain operation (OFF, HI ON, LO ON), the front wiper relay
Front wiper (HI, LO) output FRONT WIPER
(Lo, Hi) can be operated.
Cooling fan output MOTOR FAN With a certain operation (1, 2, 3, 4), the cooling fan can be operated.
Headlamp relay (HI, LO) With a certain operation (OFF, HI ON, LO ON, TAIL ON, FOG ON), the
EXTERNAL LAMPS
output lamp relay (Low, High, Tail, Fog) can be operated.
Front fog lamp relay (FOG) With a certain operation (OFF, HI ON, LO ON, TAIL ON, FOG ON), the
EXTERNAL LAMPS
output lamp relay (Low, High, Tail, Fog) can be operated.
With a certain operation (OFF, HI ON, LO ON, TAIL ON, FOG ON), the
Tail lamp relay output EXTERNAL LAMPS
lamp relay (Low, High, Tail, Fog) can be operated.
Horn output HORN With a certain ON-OFF operation, the horn relay can be operated.
Auto Active Test EKS009XE
DESCRIPTION
G In auto active test mode, operation inspection can be performed when IPDM E/R sends a drive signal to
the following systems:
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