can NISSAN TEANA 2003 Service Manual

PG-1
POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
K ELECTRICAL
CONTENTS
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POWER SUPPLY, GROUND & CIRCUIT ELEMENTS
POWER SUPPLY ROUTING CIRCUIT ...................... 3
Schematic ................................................................ 3
Wiring Diagram — POWER — ................................. 4
BATTERY POWER SUPPLY — IGNITION SW.
IN ANY POSITION ................................................ 4
ACCESSORY POWER SUPPLY — IGNITION
SW. IN “ACC” OR “ON” ....................................... 10
IGNITION POWER SUPPLY — IGNITION SW.
IN “ON” AND/OR “START” ................................... 11
Fuse ....................................................................... 16
Fusible Link ............................................................ 16
Circuit Breaker ....................................................... 16
IPDM E/R (INTELLIGENT POWER DISTRIBUTION
MODULE ENGINE ROOM) ...................................... 17
System Description ................................................ 17
SYSTEMS CONTROLLED BY IPDM E/R ........... 17
FAIL-SAFE CONTROL ........................................ 17
IPDM E/R STATUS CONTROL ........................... 18
CAN Communication System Description .............. 18
CAN Communication Unit ...................................... 18
Function of Detecting Ignition Relay Malfunction ... 18
CONSULT-II Function (IPDM E/R) ......................... 19
CONSULT-II BASIC OPERATION ....................... 19
SELF-DIAG RESULTS ........................................ 19
DATA MONITOR ................................................. 19
ACTIVE TEST ..................................................... 20
Auto Active Test ..................................................... 21
DESCRIPTION .................................................... 21
OPERATION PROCEDURE ............................... 21
INSPECTION IN AUTO ACTIVE TEST MODE ... 22
Schematic .............................................................. 24
IPDM E/R Terminal Arrangement ........................... 25
Check IPDM E/R Power Supply and Ground Circuit ... 26
Inspection With CONSULT-II (Self-Diagnosis) ....... 27
Removal and Installation of IPDM E/R ................... 28
REMOVAL ........................................................... 28
INSTALLATION ................................................... 28GROUND ................................................................... 29
Ground Distribution ................................................. 29
MAIN HARNESS ................................................. 29
ENGINE ROOM HARNESS(LH) ......................... 33
ENGINE ROOM HARNESS(RH) ......................... 35
ENGINE CONTROL HARNESS/VQ ENGINE
MODELS ............................................................. 36
ENGINE CONTROL HARNESS/QR ENGINE
MODELS ............................................................. 37
BODY HARNESS ................................................ 38
BODY NO. 2 HARNESS ..................................... 40
HARNESS ................................................................. 42
Harness Layout ...................................................... 42
HOW TO READ HARNESS LAYOUT ................. 42
OUTLINE ............................................................. 43
MAIN HARNESS ................................................. 44
ENGINE ROOM HARNESS(LH) ......................... 47
ENGINE ROOM HARNESS(RH) ......................... 49
ENGINE CONTROL HARNESS(VQ ENGINE) ... 51
ENGINE CONTROL HARNESS(QR ENGINE) ... 53
BODY HARNESS ................................................ 55
BODY NO. 2 HARNESS ..................................... 57
ROOM LAMP HARNESS .................................... 59
TAIL HARNESS ................................................... 60
FRONT DOOR HARNESS .................................. 61
REAR DOOR HARNESS .................................... 62
Wiring Diagram Codes (Cell Codes) ...................... 63
ELECTRICAL UNITS LOCATION ............................ 67
Electrical Units Location ......................................... 67
ENGINE COMPARTMENT .................................. 67
PASSENGER COMPARTMENT ......................... 68
LUGGAGE COMPARTMENT .............................. 70
HARNESS CONNECTOR ......................................... 71
Description .............................................................. 71
HARNESS CONNECTOR (TAB-LOCKING
TYPE) .................................................................. 71
HARNESS CONNECTOR (SLIDE-LOCKING
TYPE) .................................................................. 72
HARNESS CONNECTOR (LEVER LOCKING
TYPE) .................................................................. 73

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POWER SUPPLY ROUTING CIRCUIT

Fuse BKS0024K

If fuse is blown, be sure to eliminate cause of malfunction before
installing new fuse.

Use fuse of specified rating. Never use fuse of more than speci-
fied rating.

Do not partially install fuse; always insert it into fuse holder prop-
erly.

Remove fuse for “ELECTRICAL PARTS (BAT)” if vehicle is not
used for a long period of time.
Fusible LinkBKS0024L
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:

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-
function.

Never wrap outside of fusible link with vinyl tape. Important:
Never let fusible link touch any other wiring harness, vinyl
or rubber parts.
Circuit Breaker BKS0024M
The PTC thermistor generates heat in response to current flow. The
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
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.
CEL083
CKIH0274E
SEL109W

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PFP:284B7
System DescriptionBKS0024N

IPDM E/R (Intelligent Power Distribution Module Engine Room) integrates the relay box and fuse block
which were originally placed in engine room. It controls integrated relay via IPDM E/R control circuit.

IPDM E/R-integrated control circuit performs ON-OFF operation of relay, CAN communication control, oil
pressure switch signal, hood switch signal reception, etc.

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
FAIL-SAFE CONTROL

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.

Operation of control parts by IPDM E/R during fail-safe mode is as follows:
Control system Transmit control unit Control part
Lamp control BCM

Headlamp (HI, LO)

Parking, license plate and tail lamps

Front fog lamp
Wiper control BCM Front wiper
Rear window defogger control BCM Rear window defogger
A/C compressor control ECM A/C compressor (magnet clutch)
Cooling fan control ECM Cooling fan
Horn control BCM Horn
Controlled system Fail-safe mode
Headlamp

With the ignition switch ON, low beam headlamp is ON.

With the ignition switch OFF, low beam headlamp is OFF.
Parking, license plate and tail lamps

With the ignition switch ON, parking, license plate and tail lamps are ON.

With the ignition switch OFF, parking, license plate and tail lamps are OFF.
Cooling fan

With the ignition switch ON, cooling fan HI operates.

With the ignition switch OFF, cooling fan stops.
Front wiperUntil the ignition switch is turned OFF, front wiper LO and HI remains in the same status it was
in just before fail−safe control was initiated.
Rear window defogger Rear window defogger is OFF.
A/C compressor A/C compressor is OFF.
Front fog lamp Front fog lamp is OFF.

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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.
1. CAN communication status

CAN communication is normally performed with other control units.

Individual unit control by IPDM E/R is normally performed.

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

Process to stop CAN communication is activated.

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

IPDM E/R operates in low power mode.

CAN communication is stopped.

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

When a change hood switch or ignition switch signal is detected, mode switches to CAN communica-
tion status.
CAN Communication System DescriptionBKS0024O
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
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
with less wiring. Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitBKS0024P
Refer to LAN-49, "CAN System Specification Chart" .
Function of Detecting Ignition Relay MalfunctionBKS0024Q

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.

When a state of ignition relay having built-in does not agree with a state of Ignition switch signal input by a
CAN communication from BCM, IPDM E/R lets tail lamp relay operate.
NOTE:
When the ignition switch is turned ON, the tail lamp is OFF.
Ignition switch signal Ignition relay status Tail lamp relay
ON ON —
OFF OFF —
ON OFF —
OFF ON ON (10 minutes)

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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CONSULT-II Function (IPDM E/R)BKS0024R
CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.
CONSULT-II BASIC OPERATION
Refer to GI-34, "CONSULT-II Start 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.
SELF-DIAG RESULTS
Operation Procedure
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.
2. Check display content in self-diagnostic results.
Display Item List
NOTE:
The details for display of the period are as follows:

CRNT: Error currently detected with IPDM E/R.

PAST: Error detected in the past and memorized with IPDM E/R.
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
2. Touch “ALL SIGNALS”, “MAIN SIGNALS” or “SELECTION FROM MENU” on “SELECT MONITOR ITEM”
screen.
3. When “ALL SIGNALS” is selected, all items will be monitored. When “MAIN SIGNALS” is selected, prede-
termined items will be monitored. When “SELECTION FROM MENU” is selected, touch individual items to
be monitored.
4. Touch “START”.
5. Touch “RECORD” while monitoring to record the status of the item being monitored. To stop recording,
touch “STOP”.
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.
Display ItemsCONSULT-II
display codeMalfunction detecting conditionTIME
Possible causes
CRNT PAST
NO DTC IS
DETECTED.FURTHER
TESTING MAY BE
REQUIRED.-----
CAN COMM CIRC U1000

If CAN communication reception/transmission
data has a malfunction, or if any of the control
units malfunction, data reception/transmission
cannot be confirmed.

When the data in CAN communication is not
received before the specified time××Any of or several items
below have errors.

TRANSMIT DIAG

ECM

BCM / SEC
ALL SIGNALS All items will be monitored.
MAIN SIGNALS Monitor the predetermined item.
SELECTION FROM MENU Select any item for monitoring.

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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NOTE:
High beam headlamp repeats high beam and low beam every 1 second. When high beam headlamp of xenon type operates, the head-
lamp perform the HIGH-LOW changeover operation without illuminating the headlamp bulb.
Auto Active TestBKS002EW
DESCRIPTION

In auto active test mode, operation inspection can be performed when IPDM E/R sends a drive signal to
the following systems:
–Rear window defogger
–Front wiper
–Parking, license plate and tail lamps
–Front fog lamp
–Headlamp (HI, LO)
–A/C compressor (magnet clutch)
–Cooling fan
–Oil pressure warning lamp
OPERATION PROCEDURE
1. Close hood and front door (passenger side), and then lift wiper arms away from windshield (to prevent
glass damage by wiper operation).
NOTE:
When auto active test is performed with hood opened, sprinkle water on windshield beforehand.
2. Turn ignition switch OFF.
3. Turn ignition switch ON, and within 20 seconds, press driver's door switch 10 times (close the other
doors). Then turn ignition switch OFF.
4. Turn ignition switch ON within 10 seconds after ignition switch OFF.
5. When auto active test mode is actuated, horn chirps once. Oil pressure warning lamp starts blinking.
6. After a series of operations is repeated three times, auto active test is completed.
NOTE:
When auto active test mode has to be cancelled halfway, turn ignition switch OFF.
CAUTION:
Be sure to inspect door switch when the auto active test cannot be performed.
FRONT WIPER Front wiper (HI, LO) operationFront wiper relay and front wiper high relay are operated by switch-
ing operation (OFF: OFF, HI: high speed, LO: low speed).
MOTOR FAN Cooling fan operationCooling fan relay-1, 2 and 3 are operated by switching operation
(1: OFF, 2: LO, 3: MID, 4: HI).
HEAD LAMP WASHER Headlamp washer operation Headlamp washer relay is operated by switching operation ON-OFF.
LAMPSHigh beam headlamp and low
beam headlamp operation
NOTEHeadlamp low relay and headlamp high relay are operated by
switching operation (OFF: OFF, HI: high beam, LO: low beam).
Front fog lamp operationFront fog lamp relay is operated by switching operation
(OFF: OFF, FOG: ON).
HORN Horn operation Touch “ON” button, horn relay operates 20 ms.CONSULT-II screen display Test item Description

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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Concept of Auto Active Test

IPDM E/R actuates auto active test mode when it receives door switch signal from BCM via CAN commu-
nication line. Therefore, when auto active test mode is activated successfully, CAN communication
between IPDM E/R and BCM is normal.

If any of systems controlled by IPDM E/R cannot be operated, possible cause can be easily diagnosed
using auto active test.
Diagnosis chart in auto active test mode
Symptom Inspection contents Possible cause
Any of front wiper, park-
ing, license plate and
tail lamps, front fog
lamp, and headlamp
(HI, LO) do not operate.Perform auto active
test. Does system in
question operate?YES

BCM signal input system malfunction
NO

Lamp/wiper motor malfunction

Lamp/wiper motor ground circuit malfunction

Harness/connector malfunction between IPDM E/R and system in ques-
tion

IPDM E/R (integrated relay) malfunction
Rear window defogger
does not operate.Perform auto active
test. Does rear win-
dow defogger oper-
ate?YES

BCM signal input circuit malfunction
NO

Rear window defogger relay malfunction

Harness/connector malfunction between IPDM E/R and rear window
defogger relay

Open circuit of rear window defogger

IPDM E/R malfunction
A/C compressor does
not operate.Perform auto active
test. Does magnetic
clutch operate?YES

BCM signal input circuit malfunction

CAN communication signal between BCM and ECM.

CAN communication signal between ECM and IPDM E/R
NO

Magnetic clutch malfunction

Harness/connector malfunction between IPDM E/R and magnetic clutch

IPDM E/R (integrated relay) malfunction
Cooling fan does not
operate.Perform auto active
test. Does cooling fan
operate?YES

ECM signal input circuit

CAN communication signal between ECM and IPDM E/R
NO

Cooling fan motor malfunction

Harness/connector malfunction between IPDM E/R and cooling fan
motor

IPDM E/R (integrated relay) malfunction
Oil pressure warning
lamp does not operate.Perform auto active
test. Does oil pres-
sure warning lamp
blink?YES

Harness/connector malfunction between IPDM E/R and oil pressure
switch

Oil pressure switch malfunction

IPDM E/R malfunction
NO

CAN communication signal between BCM and Unified Meter and A/C
Amp.

Combination meter

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
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Inspection With CONSULT-II (Self-Diagnosis)BKS0024W
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 performs CAN communication.
1. CHECK SELF DIAGNOSTIC RESULT
1. Connect CONSULT-II and select “IPDM E/R” on “SELECT SYSTEM” screen.
2. Select “SELF-DIAG RESULTS” on the “SELECT DIAG MODE” screen.
3. Check display content in self diagnostic results.
NOTE:
The details for display of the period are as follows:

CRNT: Error currently detected with IPDM E/R.

PAST: Error detected in the past and memorized with IPDM E/R.
Contents displayed
NO DTC IS DETECTED.FURTHER TESTING MAY BE REQUIRED.>>INSPECTION END
CAN COMM CIRC>>Print out the self-diagnostic results and refer to LAN-42, "
Precautions When Using
CONSULT-II" .
CONSULT-II displayCONSULT-II
display codeTIME
Details of diagnosis result
CRNT PAST
NO DTC IS DETECTED.
FURTHER TESTING MAY BE REQUIRED.- - - No malfunction
CAN COMM CIRC U1000××Any of or several items below have errors.

TRANSMIT DIAG

ECM

BCM / SEC

HARNESS
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Wiring Diagram Codes (Cell Codes) BKS002FS
Use the chart below to find out what each wiring diagram code stands for.
Refer to the wiring diagram code in the alphabetical index to find the location (page number) of each wiring
diagram.
Code Section Wiring Diagram Name
A/C ATC Air Conditioner
ABS BRC Anti-Lock Brake System
AFS LT Adaptive Front Lighting System
APPS1 EC Accelerator Pedal Position Sensor
APPS2 EC Accelerator Pedal Position Sensor
APPS3 EC Accelerator Pedal Position Sensor
ASC/BS EC Automatic Speed Control Device (ASCD) Brake Switch
ASC/SW EC Automatic Speed Control Device (ASCD) Steering Switch
ASCBOF EC Automatic Speed Control Device (ASCD) Brake Switch
ASCIND EC Automatic Speed Control Device (ASCD) Indicator
AT/IND DI A/T Indicator Lamp
AUDIO AV Audio
AUT/DP SE Automatic Drive Positioner
AUTO/L LT Auto Light Control
BA/FTS AT A/T Fluid Temperature Sensor and TCM Power Supply
BACK/L LT Back-Up Lamp
BRK/SW EC Brake Switch
CAN AT CAN Communication Line
CAN CVT CAN Communication Line
CAN EC CAN Communication Line
CAN LAN CAN System
CHARGE SC Charging System
CHIME DI Warning Chime
CIGAR WW Cigarette Lighter
COMBSW LT Combination Switch
COMM AV Audio Visual Communication Line
COOL/F EC Cooling Fan Control
CVTIND DI CVT Indicator Lamp
D/LOCK BL Power Door Lock
DEF GW Rear Window Defogger
ECM/PW EC ECM Power Supply for Back-Up
ECTS EC Engine Coolant Temperature Sensor
EMNT EC Electronic Controlled Engine Mount
ENGSS AT Engine Speed Signal
ETC1 EC Electric Throttle Control Function
ETC2 EC Electric Throttle Control Motor Relay
ETC3 EC Electric Throttle Control Motor
F/FOG LT Front Fog Lamp
F/LID BL Fuel Lid Opener
F/PUMP EC Fuel Pump
FRO2 EC Heated Oxygen Sensor 1 Heater

HARNESS
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POWER CVT Transmission Control Module (Power Supply)
POWER PG Power Supply Routing
PRGVLV EC EVAP Canister Purge Volume Control Solenoid Valve
PRIPS CVT Primary Pressure Sensor
PRSCVT CVT Primary Speed Sensor CVT (Revolution Sensor)
PS/SEN EC Power Steering Pressure Sensor
PT/SEN AT Power Train Sensor
R/FOG LT Rear Fog Lamp
ROOM/L LT Interior Room Lamp
RP/SEN EC Refrigerant Pressure Sensor
RRO2 EC Heated Oxygen Sensor 2 Heater
RRO2 EC Heated Oxygen Sensor 2 Heater Bank 1
RRO2 EC Heated Oxygen Sensor 2 Heater Bank 2
SEAT SE Power Seat
SECPS CVT Secondary Pressure Sensor
SECPSV CVT Secondary Pressure Solenoid Valve
SEN/PW EC Sensor Power Supply
SESCVT CVT Secondary Speed Sensor CVT (Revolution Sensor)
SHADE EI Rear Sunshade
SHIFT AT A/T Shift Lock System
SHIFT CVT CVT Shift Lock System
SROOF RF Sunroof
SRS SRS Supplemental Restraint System
SSV/A AT Shift Solenoid Valve A
SSV/B AT Shift Solenoid Valve B
START SC Starting System
STM CVT Step Motor
STOP/L LT Stop Lamp
STSIG CVT Start Signal Circuit
TAIL/L LT Parking, License and Tail Lamps
TCV AT Torque Converter Clutch Solenoid Valve
TCV CVT Torque Converter Clutch Solenoid Valve
TLID BL Trunk Lid Opener
TPS1 EC Throttle Position Sensor (Sensor 1)
TPS2 EC Throttle Position Sensor (Sensor 2)
TPS3 EC Throttle Position Sensor
TURN LT Turn Signal and Hazard Warning Lamp
VDC BRC Vehicle Dynamics Control System
VIAS/V EC VIAS Control Solenoid Valve
VSSA/T AT Vehicle Speed Sensor A/T (Revolution Sensor)
VSSMTR AT Vehicle Speed Sensor MTR
W/ANT AV Audio Antenna
WARN DI Warning Lamps Code Section Wiring Diagram Name