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>> Download pg documenatation <<Text preview - extract from the documentK ELECTRICAL
A
B
SECTION
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS C
D
E
CONTENTS
PRECAUTIONS ......................................................... 3 . Inspection with CONSULT-II (Self-Diagnosis) ....... 27 . F
Precautions for Supplemental Restraint System Removal and Installation of IPDM E/R .................. 28 .
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- REMOVAL .......................................................... 28
.
SIONER" ................................................................. 3
. INSTALLATION .................................................. 28 . G
POWER SUPPLY ROUTING CIRCUIT ..................... 4 . GROUND CIRCUIT .................................................. 29 .
Schematic ............................................................... 4
. Ground Distribution ................................................ 29
.
Wiring Diagram -- POWER -- ................................ 6 . MAIN HARNESS ................................................ 29 .
H
BATTERY POWER SUPPLY -- IGNITION SW. ENGINE ROOM HARNESS ............................... 31 .
IN ANY POSITION ............................................... 6 . ENGINE CONTROL HARNESS (QR25DE) ....... 33 .
ACCESSORY POWER SUPPLY -- IGNITION ENGINE CONTROL HARNESS (VQ35DE) ....... 35 .
SW. IN ACC OR ON ........................................... 10 . BODY HARNESS ............................................... 37 . I
IGNITION POWER SUPPLY -- IGNITION SW. BODY NO. 2 HARNESS .................................... 38 .
IN ON ..................................................................11
. HARNESS ................................................................ 40
.
IGNITION POWER SUPPLY -- IGNITION SW. Harness Layout ..................................................... 40
. J
IN ON AND/OR START ...................................... 12 . HOW TO READ HARNESS LAYOUT ................ 40 .
Fuse ...................................................................... 15
. OUTLINE ............................................................ 41
.
Fusible Link ........................................................... 15
. MAIN HARNESS ................................................ 42 . PG
Circuit Breaker (Built Into BCM) ............................ 15 . ENGINE ROOM HARNESS LH VIEW (ENGINE
IPDM E/R (INTELLIGENT POWER DISTRIBUTION COMPARTMENT) .............................................. 44 .
MODULE ENGINE ROOM) ..................................... 16 . ENGINE ROOM HARNESS RH VIEW (ENGINE
System Description ............................................... 16 . COMPARTMENT) .............................................. 47 . L
SYSTEMS CONTROLLED BY IPDM E/R .......... 16 . ENGINE CONTROL HARNESS (QR25DE) ....... 49 .
CAN COMMUNICATION LINE CONTROL ........ 16 . ENGINE CONTROL HARNESS (VQ35DE) ....... 51 .
IPDM E/R STATUS CONTROL .......................... 17 . BODY HARNESS ............................................... 53 . M
CAN Communication System Description ............. 17 . BODY NO. 2 HARNESS .................................... 55 .
Function of Detecting Ignition Relay Malfunction ... 17 ROOM LAMP HARNESS ................................... 57 .
CONSULT-II Function (IPDM E/R) ........................ 18 . FRONT DOOR LH HARNESS ........................... 58 .
CONSULT-II BASIC OPERATION ..................... 18 . FRONT DOOR RH HARNESS ........................... 58 .
SELF-DIAGNOSTIC RESULTS ......................... 19 . REAR DOOR LH HARNESS .............................. 59 .
DATA MONITOR ................................................ 19 . REAR DOOR RH HARNESS ............................. 59 .
ACTIVE TEST .................................................... 21 . Wiring Diagram Codes (Cell Codes) ..................... 60 .
Auto Active Test .................................................... 22. ELECTRICAL UNITS LOCATION ........................... 63 .
DESCRIPTION ................................................... 22 . Electrical Units Location ........................................ 63 .
OPERATION PROCEDURE .............................. 22 . ENGINE COMPARTMENT ................................. 63 .
INSPECTION IN AUTO ACTIVE TEST MODE ... 22 PASSENGER COMPARTMENT ........................ 64 .
Schematic ............................................................. 24
. HARNESS CONNECTOR ........................................ 66 .
IPDM E/R TERMINAL ARRANGEMENT ........... 25 . Description ............................................................. 66
.
IPDM E/R Power/Ground Circuit Inspection ......... 26 . HARNESS CONNECTOR (TAB-LOCKING
TYPE) ................................................................. 66
.
HARNESS CONNECTOR (SLIDE-LOCKING
Revision: July 2005 PG-1 2006 Altima
TYPE) ................................................................. 67
. MIXED TYPE RELAYS .......................................70 .
HARNESS CONNECTOR (DIRECT-CONNECT TYPE OF STANDARDIZED RELAYS .................70 .
SRS COMPONENT TYPE) ................................ 68 . FUSE BLOCK-JUNCTION BOX(J/B) ......................72 .
ELECTRICAL UNITS ............................................... 69 . Terminal Arrangement ............................................72
.
Terminal Arrangement ........................................... 69 . FUSE AND FUSIBLE LINK BOX .............................73 .
STANDARDIZED RELAY ......................................... 70 . Terminal Arrangement ............................................73
.
Description ............................................................. 70
.
NORMAL OPEN, NORMAL CLOSED AND
Revision: July 2005 PG-2 2006 Altima
PRECAUTIONS
PRECAUTIONS PFP:00011
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EKS008UA
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
q 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
q 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
q 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
H
I
J
PG
L
M
Revision: July 2005 PG-3 2006 Altima
POWER SUPPLY ROUTING CIRCUIT
POWER SUPPLY ROUTING CIRCUIT PFP:24110
Schematic EKS008UC
For detailed ground distribution, refer to PG-29, "Ground Distribution" .
WKWA3683E
Revision: July 2005 PG-4 2006 Altima
POWER SUPPLY ROUTING CIRCUIT
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA3684E
Revision: July 2005 PG-5 2006 Altima
POWER SUPPLY ROUTING CIRCUIT
Wiring Diagram -- POWER -- EKS008UD
BATTERY POWER SUPPLY -- IGNITION SW. IN ANY POSITION
WKWA3685E
Revision: July 2005 PG-6 2006 Altima
POWER SUPPLY ROUTING CIRCUIT
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA3686E
Revision: July 2005 PG-7 2006 Altima
POWER SUPPLY ROUTING CIRCUIT
WKWA3687E
Revision: July 2005 PG-8 2006 Altima
POWER SUPPLY ROUTING CIRCUIT
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA3688E
Revision: July 2005 PG-9 2006 Altima
POWER SUPPLY ROUTING CIRCUIT
ACCESSORY POWER SUPPLY -- IGNITION SW. IN ACC OR ON
WKWA3689E
Revision: July 2005 PG-10 2006 Altima
POWER SUPPLY ROUTING CIRCUIT
IGNITION POWER SUPPLY -- IGNITION SW. IN ON
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA3690E
Revision: July 2005 PG-11 2006 Altima
POWER SUPPLY ROUTING CIRCUIT
IGNITION POWER SUPPLY -- IGNITION SW. IN ON AND/OR START
WKWA3691E
Revision: July 2005 PG-12 2006 Altima
POWER SUPPLY ROUTING CIRCUIT
A
B
C
D
E
F
G
H
I
J
PG
L
M
WKWA3692E
Revision: July 2005 PG-13 2006 Altima
POWER SUPPLY ROUTING CIRCUIT
WKWA3693E
Revision: July 2005 PG-14 2006 Altima
POWER SUPPLY ROUTING CIRCUIT
Fuse EKS00GDM
A
q If fuse is blown, be sure to eliminate cause of incident 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 EKS00GDN
A melted fusible link can be detected either by visual inspection or by E
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 inci- G
dent.
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. WKIA0123E
Circuit Breaker (Built Into BCM) EKS00GDO
For example, when current is 30A, the circuit is broken within 8 to 20 I
seconds.
A circuit breaker is used for the following systems:
q Power seat J
q Power windows
q Power door locks
PG
q Remote keyless entry system
L
SBF284E
M
Revision: July 2005 PG-15 2006 Altima
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PFP:284B7
System Description EKS008UE
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-
cuits.
q IPDM E/R-integrated control circuits perform 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 individually removed.
SYSTEMS CONTROLLED BY IPDM E/R
1. Lamp control
Using CAN communication lines, it receives signals from the BCM and controls the following lamps:
q Headlamps (Hi, Lo)
q Parking lamps
q Tail lamps
q Front fog lamps
2. Wiper control
Using CAN communication lines, it receives signals from the BCM and controls the front wipers.
3. Rear window defogger relay control
Using CAN communication lines, it receives signals from the BCM and controls the rear window defogger
relay.
4. A/C compressor control
Using CAN communication lines, it receives signals from the ECM and controls the A/C compressor magnetic
clutch).
5. Cooling fan control
Using CAN communication lines, it receives signals from the ECM and controls the cooling fan relays.
6. Horn control
Using CAN communication lines, it receives signals from the BCM and controls the 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 read 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.
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
Revision: July 2005 PG-16 2006 Altima
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R STATUS CONTROL
A
In order to save power, IPDM E/R switches status by itself based on each operating condition.
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.
E
q CAN communication is stopped.
q When a change in CAN communication signal is detected, mode switches to CAN communication sta-
tus.
F
q When a change in ignition switch signal is detected, mode switches to CAN communication status.
CAN Communication System Description EKS008UF
Refer to LAN-20, "CAN COMMUNICATION" . G
Function of Detecting Ignition Relay Malfunction EKS008UG
q When the integrated ignition relay is stuck in a "closed contact" position and cannot be turned OFF, IPDM H
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. I
Ignition switch signal Ignition relay status Tail lamp relay
ON ON --
J
OFF OFF --
ON OFF --
OFF ON ON (10 minutes) PG
NOTE:
When the ignition switch is turned ON, the tail lamps are OFF.
L
M
Revision: July 2005 PG-17 2006 Altima
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
CONSULT-II Function (IPDM E/R) EKS008UH
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.
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.
ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
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 carries 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)".
BCIA0029E
3. Touch "IPDM E/R" on "SELECT SYSTEM" screen.
q If "IPDM E/R" is not displayed then refer to GI-39, "Consult-II
Data Link Connector (DLC) Circuit" .
BCIA0030E
Revision: July 2005 PG-18 2006 Altima
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-DIAGNOSTIC RESULTS
Operation Procedure
1. Touch "SELF-DIAG RESULTS" on "SELECT DIAG MODE" E
screen.
2. Self-diagnosis results are displayed.
F
G
WKIA1264E
H
Display Item List
CONSULT-II TIME Possible causes
Display items Malfunction detection I
display code CRNT PAST
NO DTC IS DETECTED.
FURTHER TESTING -- -- -- -- --
MAY BE REQUIRED. J
q If CAN communication reception/transmis- Any of items listed
sion data has a malfunction, or if any of the below have errors:
control units fail, data reception/transmis- PG
CAN COMM CIRC U1000 X X q TRANSMIT DIAG
sion cannot be confirmed.
q ECM
q When the data in CAN communication is not
received before the specified time. q BCM/SEC
L
NOTE:
The details for display of the period are as follows:
q CRNT: Error currently detected with IPDM E/R. M
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 "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".
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
monitored.
Revision: July 2005 PG-19 2006 Altima
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
5. Touch "RECORD" while monitoring to record the status of the item being monitored. To stop recording,
touch "STOP".
Revision: July 2005 PG-20 2006 Altima
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
All Signals, Main Signals, Select From Menu
Monitor item selection
A
CONSULT-II
Item name screen display Display or unit ALL MAIN SELECTION Description
SIGNALS SIGNALS FROM MENU
B
Cooling fan MOTOR FAN
1/2/3/4 X X X Signal status input from ECM
request REQ
Compressor
AC COMP REQ ON/OFF X X X Signal status input from ECM C
request
Parking, license,
and tail lamp TAIL & CLR REQ ON/OFF X X X Signal status input from BCM
request D
Headlamp low
HL LO REQ ON/OFF X X X Signal status input from BCM
beam request
Headlamp high E
HL HI REQ ON/OFF X X X Signal status input from BCM
beam request
Front fog request FR FOG REQ ON/OFF X X X Signal status input from BCM
STOP/1LOW/ F
FR wiper request FR WIP REQ X X X Signal status input from BCM
LOW/HI
WIP AUTO
Wiper auto stop ACT P/STOP P X X X Output status of IPDM E/R
STOP G
Wiper protection WIP PROT OFF/LS/HS/Block X X X Control status of IPDM E/R
Starter request ST RLY REQ ON/OFF X X Status of input signal NOTE
H
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 I
request
Oil pressure Signal status input from IPDM
OIL P SW OPEN/CLOSE X X
switch E/R
J
Signal status input from IPDM
Hood switch HOOD SW (*1) OFF X
E/R (function is not enabled)
Theft warning
horn request
THFT HRN REQ ON/OFF X X Signal status input from BCM PG
Horn chirp HORN CHIRP ON/OFF X X Output status of IPDM E/R
NOTE: L
q Perform monitoring of IPDM E/R data with the ignition switch ON. When the ignition switch is in ACC posi-
tion, display may not be correct.
q (*1) This item is displayed, but does not function. M
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.
Test name CONSULT-II screen display Description
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
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.
Revision: July 2005 PG-21 2006 Altima
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
Test name CONSULT-II screen display Description
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.
Horn output HORN With a certain ON-OFF operation, the horn relay can be operated.
Auto Active Test EKS008UI
DESCRIPTION
q 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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