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K ELECTRICAL
A
B
SECTION
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS C
D
E
CONTENTS
POWER SUPPLY ROUTING CIRCUIT ..................... 3 . GROUND CIRCUIT .................................................. 27 . F
Schematic ............................................................... 3
. Ground Distribution ................................................ 27 .
Wiring Diagram -- POWER -- ................................ 5 . MAIN HARNESS ................................................ 27 .
BATTERY POWER SUPPLY -- IGNITION SW. ENGINE ROOM HARNESS ............................... 30 . G
IN ANY POSITION ............................................... 5 . ENGINE CONTROL HARNESS ......................... 32 .
ACCESSORY POWER SUPPLY -- IGNITION BODY HARNESS ............................................... 33 .
SW. IN ACC OR ON ............................................. 9 . BODY NO. 2 HARNESS .................................... 34 .
H
IGNITION POWER SUPPLY -- IGNITION SW. HARNESS ................................................................ 36
.
IN ON ................................................................. 10
. Harness Layout ..................................................... 36 .
IGNITION POWER SUPPLY -- IGNITION SW. HOW TO READ HARNESS LAYOUT ................ 36 .
IN ON AND/OR START .......................................11 . OUTLINE ............................................................ 37. I
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MAIN HARNESS ................................................ 38 .
MODULE ENGINE ROOM) ..................................... 14 . ENGINE ROOM HARNESS (LH VIEW) ............. 40 .
System Description ............................................... 14 . ENGINE ROOM HARNESS (RH VIEW) ............ 43 . J
SYSTEMS CONTROLLED BY IPDM E/R .......... 14 . ENGINE CONTROL HARNESS ......................... 45 .
CAN COMMUNICATION LINE CONTROL ........ 14 . BODY HARNESS AND TAIL HARNESS ............ 47 .
IPDM E/R STATUS CONTROL .......................... 15 . BODY NO. 2 HARNESS AND BODY NO. 3 HAR- PG
Function of Detecting Ignition Relay Malfunction ... 15 NESS .................................................................. 49
.
CONSULT-II Function ........................................... 16 . ROOM LAMP HARNESS ................................... 51 .
CONSULT-II BASIC OPERATION ...................... 16 . FRONT DOOR LH HARNESS ........................... 52 .
SELF-DIAGNOSTIC RESULTS ......................... 17 . FRONT DOOR RH HARNESS ........................... 52 . L
DATA MONITOR ................................................ 17 . REAR DOOR LH HARNESS .............................. 53 .
CAN DIAGNOSIS SUPPORT MONITOR .......... 18 . REAR DOOR RH HARNESS ............................. 53 .
ACTIVE TEST .................................................... 19 . Wiring Diagram Codes (Cell Codes) ..................... 54 . M
Auto Active Test .................................................... 19
. ELECTRICAL UNITS LOCATION ........................... 57 .
DESCRIPTION ................................................... 19 . Electrical Units Location ........................................ 57 .
OPERATION PROCEDURE .............................. 19 . ENGINE COMPARTMENT ................................. 57 .
INSPECTION IN AUTO ACTIVE TEST MODE ... 20 PASSENGER COMPARTMENT ........................ 58 .
Schematic ............................................................. 22
. Fuse ....................................................................... 60
.
IPDM E/R Terminal Arrangement .......................... 23 . Fusible Link ........................................................... 60
.
IPDM E/R Power/Ground Circuit Inspection ......... 24 . Circuit Breaker (Built Into BCM) ............................ 60 .
Inspection with CONSULT-II (Self-Diagnosis) ....... 25 . HARNESS CONNECTOR ........................................ 61 .
Removal and Installation of IPDM E/R .................. 26 . Description ............................................................. 61
.
REMOVAL .......................................................... 26
. HARNESS CONNECTOR (TAB-LOCKING
INSTALLATION .................................................. 26 . TYPE) ................................................................. 61
.
HARNESS CONNECTOR (SLIDE-LOCKING
TYPE) ................................................................. 62
.
HARNESS CONNECTOR (DIRECT-CONNECT
SRS COMPONENT TYPE) ................................ 62 .
PG-1
ELECTRICAL UNITS ............................................... 64 . MIXED TYPE RELAYS .......................................65 .
Terminal Arrangement ........................................... 64 . TYPE OF STANDARDIZED RELAYS .................65 .
STANDARDIZED RELAY ......................................... 65 . FUSE BLOCK-JUNCTION BOX(J/B) ......................67 .
Description ............................................................. 65
. Terminal Arrangement ............................................67
.
NORMAL OPEN, NORMAL CLOSED AND FUSE AND FUSIBLE LINK BOX .............................68 .
Terminal Arrangement ............................................68
.
PG-2
POWER SUPPLY ROUTING CIRCUIT
POWER SUPPLY ROUTING CIRCUIT PFP:24110
A
Schematic EKS003X1
For detailed ground distribution, refer to PG-27, "Ground Distribution" .
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA0930E
PG-3
POWER SUPPLY ROUTING CIRCUIT
WKWA0931E
PG-4
POWER SUPPLY ROUTING CIRCUIT
Wiring Diagram -- POWER -- EKS003X2
BATTERY POWER SUPPLY -- IGNITION SW. IN ANY POSITION A
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA0933E
PG-5
POWER SUPPLY ROUTING CIRCUIT
WKWA0460E
PG-6
POWER SUPPLY ROUTING CIRCUIT
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA0955E
PG-7
POWER SUPPLY ROUTING CIRCUIT
WKWA0462E
PG-8
POWER SUPPLY ROUTING CIRCUIT
ACCESSORY POWER SUPPLY -- IGNITION SW. IN ACC OR ON
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA0463E
PG-9
POWER SUPPLY ROUTING CIRCUIT
IGNITION POWER SUPPLY -- IGNITION SW. IN ON
WKWA0464E
PG-10
POWER SUPPLY ROUTING CIRCUIT
IGNITION POWER SUPPLY -- IGNITION SW. IN ON AND/OR START
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA0465E
PG-11
POWER SUPPLY ROUTING CIRCUIT
WKWA0466E
PG-12
POWER SUPPLY ROUTING CIRCUIT
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA0467E
PG-13
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PFP:284B7
System Description EKS005GU
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 relays via IPDM E/R control cir-
cuit.
q IPDM E/R-integrated control circuit performs ON-OFF operation of relays, CAN communication control, oil
pressure switch signal reception, etc.
q It controls operation of each electrical component via 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 lines, it receives signal from BCM and controls the following lamps:
q Head lamps (Hi, Lo)
q Parking lamps
q Tail lamps
q Cornering lamps
q Front fog lamps
2. Wiper control
Using CAN communication lines, it receives signals from BCM and controls the front wipers.
3. Rear window defogger relay control
Using CAN communication lines, it receives signals from BCM and controls the rear window defogger
relay.
4. A/C compressor control
Using CAN communication lines, it receives signals from ECM and controls the A/C compressor (mag-
netic clutch).
5. Cooling fan control
Using CAN communication lines, it receives signals from ECM and controls cooling fan.
6. Horn control
Using CAN communication lines, 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 a 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 returns to normal operation, 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.
Tail and parking lamps q With the ignition switch ON, the tail and parking lamps are ON.
q With the ignition switch OFF, the tail and parking lamps are 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 OFF
A/C compressor A/C compressor OFF
Front fog lamps Front fog lamp relay OFF
PG-14
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 1 second has elapsed after CAN communica-
tion with other control units is stopped, mode switches to sleep status. D
3. Sleep status
q IPDM E/R operates in low current-consumption mode.
q CAN communication is stopped. E
q When a change in CAN communication signal is detected, mode switches to CAN communication sta-
tus.
q When a change in ignition switch signal is detected, mode switches to CAN communication status. F
Function of Detecting Ignition Relay Malfunction EKS005GW
q When the integrated ignition relay is stuck in a "closed contact" position and cannot be turned OFF, IPDM G
E/R turns ON tail and parking lamps for 10 minutes to indicate IPDM E/R malfunction.
q 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. H
Ignition switch signal Ignition relay status Tail lamp relay
ON ON --
I
OFF OFF --
ON OFF --
OFF ON ON (10 minutes) J
NOTE:
When the ignition switch is turned ON, the tail lamps are OFF.
PG
L
M
PG-15
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
CONSULT-II Function EKS005H6
CONSULT-II executes the following functions by combining data reception and command transmission via the
CAN communication lines from the IPDM E/R.
Inspection Item, Diagnosis Mode Description
SELF-DIAG RESULTS The IPDM E/R performs diagnosis of CAN communication and self-diagnosis.
DATA MONITOR The input/output data of the IPDM E/R is displayed in real time.
ACTIVE TEST The IPDM E/R sends a drive signal to electronic components to check their operation.
CONSULT-II BASIC OPERATION
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 igni-
tion switch ON.
BBIA0002E
2. Touch "START (NISSAN BASED VHCL)".
SKIA3098E
3. Touch "IPDM E/R" on "SELECT SYSTEM" screen.
q If "IPDM E/R" is not displayed, print "SELECT SYSTEM"
screen, then refer to LAN-6, "Precautions for CAN System" .
SKIA5036E
PG-16
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
4. Select "SELF-DIAG RESULTS" or "DATA MONITOR".
A
B
C
SKIA4966E
D
SELF-DIAGNOSTIC RESULTS
Operation Procedure
1. Touch "SELF-DIAG RESULTS" on "SELECT DIAG MODE" E
screen.
2. Self-diagnosis results are displayed.
F
G
SKIA4956E
H
Display Item List
TIME Possible
CONSULT-II
Display items Error return condition causes I
display code CRNT PAST
NO DTC IS DETECTED.
FURTHER TESTING -- -- -- -- -- J
MAY BE REQUIRED.
Any of items
q If CAN communication reception/transmission listed below
data has an error, or if any of the control units fail, PG
have errors:
CAN COMM CIRC U1000 data reception/transmission cannot be confirmed. X X q CAN CIRC 1
q When the data in CAN communication is not
q CAN CIRC 2
received before the specified time. L
q CAN CIRC 3
NOTE:
The details for display of the period are as follows: M
q CRNT: Error currently detected with IPDM E/R.
q 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 "SELECT FROM MENU" on the "DATA MONITOR" screen.
ALL SIGNALS All signals will be monitored.
MAIN SIGNALS Monitors the predetermined item(s).
SELECT FROM MENU Selects and monitors individual signal(s).
3. Touch "START".
4. Touch the required monitoring item on "SELECT ITEM MENU".
5. Touch "RECORD" while monitoring to record the status of the item being monitored. To stop recording,
touch "STOP".
PG-17
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
All Signals, Main Signals, Select From Menu
CONSULT-II Monitor item selection
Item name screen display Display or unit ALL MAIN SELECT Description
SIGNALS SIGNALS FROM MENU
MOTOR FAN
Motor fan request 1/2/3/4 X X X Signal status input from ECM
REQ
Compressor
AC COMP REQ ON/OFF X X X Signal status input from ECM
request
Tail & clear
TAIL & CLR REQ ON/OFF X X X Signal status input from BCM
request
H/L LO request HL LO REQ ON/OFF X X X Signal status input from BCM
H/L HI request HL HI REQ ON/OFF X X X Signal status input from BCM
FR fog request FR FOG REQ ON/OFF X X X Signal status input from BCM
FR wiper request FR WIP REQ STOP/1LO/LO/HI X X X Signal status input from BCM
WIP AUTO
Wiper auto stop ACT P/STOP P X X X Output status of IPDM E/R
STOP
Wiper protection WIP PROT OFF/LS/HS/Block X X Control status of IPDM E/R
Starter request ST RLY REQ ON/OFF X X Status of input signal NOTE
Ignition relay Ignition relay status monitored
IGN RLY ON/OFF X X X
status with IPDM E/R
Rear defogger
RR DEF REQ ON/OFF X X X Signal status input from BCM
request
Oil pressure Signal status input from IPDM
OIL P SW OPEN/CLOSE X X
switch E/R
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
Cornering lamp CRNRNG LMP
OFF/LEFT/RIGHT X X Signal status input from BCM
request REQ
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.
CAN DIAGNOSIS SUPPORT MONITOR
Operation Procedure
1. Touch "DATA MONITOR" on "SELECT MONITOR ITEM" screen.
2. Touch "CAN DIAG SUPPORT MNTR" on the "DATA MONITOR" screen.
3. Touch "START".
4. Touch "RECORD" while monitoring to record the status of the item being monitored. To stop recording,
touch "STOP".
Item name Display
CAN CIRC 1 OK/UNKWN
CAN CIRC 2 OK/UNKWN
CAN CIRC 3 OK/UNKWN
CAN 1 STAT 0 - 40
CAN 2 STAT 0 - 40
CAN 3 STAT 0 - 40
NOTE:
q 0: Normal
q 1 - 40: Error detected in the past and stored in IPDM E/R memory.
PG-18
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
ACTIVE TEST
Operation Procedure A
1. Touch "ACTIVE TEST" on "SELECT DIAG-MODE" screen.
2. Touch item to be tested, and check operation.
B
3. Touch "START".
4. Touch "STOP" while testing to stop the operation.
Test name CONSULT-II screen display Description C
Tail lamp output TAIL LAMP With a certain ON-OFF operation, the tail lamp relay can be operated.
With a certain ON-OFF operation, the rear defogger relay can be oper-
Rear defogger output REAR DEFOGGER D
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.
E
Cooling fan output MOTOR FAN With a certain operation (1, 2, 3, 4), the cooling fan can be operated.
With a certain operation (OFF, HI ON, LO ON, FOG ON), the lamp
Lamp (HI, LO, FOG) output LAMPS
relay (Lo, Hi, Fog) can be operated.
F
Cornering lamp output CORNERING LAMP --
Horn output HORN With a certain ON-OFF operation, the horn relay can be operated.
G
Auto Active Test EKS005GX
DESCRIPTION
q In auto active test mode, operation inspection can be performed when IPDM E/R sends a drive signal to H
the following systems:
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