can NISSAN TEANA 2003 Service Manual

AV-98
INTEGRATED COLOR DISPLAY SYSTEM

4. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect display control unit and A/C and AV switch connectors.
3. Check continuity between display control unit harness connector
(A) M83 terminals 28, 30 and A/C and AV switch harness con-
nector (B) M40 terminals 12, 11.
4. Check continuity between display control unit harness connector
(A) M83 terminals 28, 30 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK A/C AND AV SWITCH AND DISPLAY CONTROL UNIT
1. Replace A/C and AV switch or display control unit.
2. Make sure that A/C system and audio system can be operated by A/C and AV switch.
OK or NG
OK >> INSPECTION END
NG >> Replace the other unit.28 – 12 : Continuity should exist.
30 – 11 : Continuity should exist.
28, 30 – Ground : Continuity should not exist.
SKIB8837E

AV-110
INTEGRATED COLOR DISPLAY SYSTEM

Values for All Items in The TRIP Screen Do Not ChangeBKS0028A
Symptom: Values for items, “Elapsed Time”, “Driving Distance” and “Average Speed” in the TRIP screen do
not change.
1. CHECK DISPLAY CONTROL UNIT IGNITION SIGNAL
Select “Vehicle Signal” in Confirmation mode, and check the ignition signal inputting to display control unit.
Refer to AV- 9 0 , "
Vehicle Signal" .
OK or NG
OK >> Replace display control unit.
NG >> Check display control unit ignition signal circuit, and repair malfunctioning part.
Values for Items, “Driving Distance” and “Average Speed” Do Not ChangeBKS0028B
Symptom: Values for Items, "Driving Distance" and "Average Speed" do not change. (The Value for "Elapsed
Time" Changes.)
1. CHECK DISPLAY CONTROL UNIT VEHICLE SPEED SIGNAL
Select “Vehicle Signal” in Confirmation mode, and check the vehicle speed signal inputting to display control
unit. Refer to AV- 9 0 , "
Vehicle Signal" .
OK or NG
OK >> Replace display control unit.
NG >> Check display control unit vehicle speed signal circuit, and repair malfunctioning part.
Values for All Items in The FUEL ECONOMY Screen Do Not ChangeBKS0028C
Symptom: Values for items, “Average Fuel Economy” and “Distance to Empty” in the FUEL ECONOMY screen
do not change.
1. CHECK CONDITION
Check if values for all items in the TRIP screen change properly.
OK or NG
OK >> Select “CAN Diagnosis” in Confirmation mode, and check the status of CAN communication.
Refer to AV- 9 3 , "
CAN DIAGNOSIS" . Repair malfunctioning part after checked the status of CAN
communication. Refer to LAN-49, "
CAN System Specification Chart" .
NG >> Repair malfunctioning part. Refer to AV- 11 0 , "
Values for All Items in The TRIP Screen Do Not
Change" or AV- 11 0 , "Values for Items, “Driving Distance” and “Average Speed” Do Not Change" .

INTEGRATED COLOR DISPLAY SYSTEM
AV-111
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AV

Example of Symptoms Possible No MalfunctionBKS0028D
For system operation information, refer to Owner's Manual.
DISPLAY
REAR VIEW MONITOR
Symptom Possible cause Possible solution
No image is displayed.The brightness is at the lowest setting. Adjust the brightness of the display.
The display is turned off. Turn on the display.
The screen is too dim. The move-
ment is slow.The temperature in the interior of the vehicle is
low.Wait until the interior of the vehicle has
warmed up.
Some pixels in the display are
darker or brighter than others.This condition is an inherent characteristic of
liquid crystal displays.This is not a malfunction.
Some menu items cannot be
selected.Some menu items become unavailable while
the vehicle is driven.Park the vehicle in a safe location, then oper-
ate the system.
Symptom Possible cause Possible solution
Rear view monitor image is not
shown.Selector lever is not set to R position. Shift the selector lever to R position.
Rear view monitor image is fuzzy.The front glass of the camera lens is dirty. Wipe it with a soft wet cloth lightly.
Adherence of raindrops or snow. Wipe it with a soft cloth lightly.
The lens is illuminated directly by sunlight or light
from headlight of cars behind.The fuzzy image recovers when the light is
covered.

BCS-1
BODY CONTROL SYSTEM
K ELECTRICAL
CONTENTS
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SECTION BCS
A
B
BCS

BODY CONTROL SYSTEM
PRECAUTIONS .......................................................... 2
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 2
BCM (BODY CONTROL MODULE) ........................... 3
System Description .................................................. 3
BCM FUNCTION ................................................... 3
COMBINATION SWITCH READING FUNCTION ..... 3
BCM STATUS CONTROL ..................................... 7
SYSTEMS CONTROLLED BY BCM DIRECTLY ..... 8
SYSTEMS CONTROLLED BY BCM AND IPDM
E/R ........................................................................ 8
SYSTEMS CONTROLLED BY BCM AND COM-
BINATION METER ................................................ 8
SYSTEMS CONTROLLED BY BCM, COMBINA-
TION METER AND IPDM E/R .............................. 8SYSTEMS CONTROLLED BY BCM AND INTEL-
LIGENT KEY UNIT ................................................ 8
MAJOR COMPONENTS AND CONTROL SYS-
TEM ....................................................................... 9
CAN Communication Unit ....................................... 10
Schematic ............................................................... 11
CONSULT-II Function (BCM) ................................. 13
CONSULT-II BASIC OPERATION ....................... 13
ITEMS OF EACH PART ...................................... 13
WORK SUPPORT ............................................... 14
CAN Communication Inspection Using CONSULT-
II (Self-Diagnosis) ................................................... 14
Check BCM Power Supply and Ground Circuit ...... 15
Removal and Installation of BCM ........................... 16
REMOVAL ........................................................... 16
INSTALLATION ................................................... 16

BCS-2
PRECAUTIONS

PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
BKS001UF
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
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. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:

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.

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.

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.

BCM (BODY CONTROL MODULE)
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BCS

BCM (BODY CONTROL MODULE)PFP:284B2
System DescriptionBKS002EV
BCM (Body Control Module) controls the operation of various electrical units installed on the vehicle.
BCM FUNCTION
BCM has combination switch reading function for reading the operation of combination switches (light, wiper
washer, turn signal) in addition to a function for controlling the operation of various electrical components. Also
it has an interface function allowing it to receive signals from the unified meter and A/C amp., and send signals
to ECM using CAN communication.
COMBINATION SWITCH READING FUNCTION
Description

BCM reads combination switch (lighting switch, wiper switch) status, and controls various electrical com-
ponent, according to the results.

BCM reads information of a maximum of 20 switches by combining 5 output terminals (OUTPUT 1-5) and
5 input terminals (INPUT 1-5).
Operation Description

BCM activates transistors of output terminals (OUTPUT 1-5) periodically and, allows current to flow in
turn.

If any (1 or more) switches are turned ON, circuit of output terminals (OUTPUT 1-5) and input terminals
(INPUT 1-5) becomes active.

At this time, transistors of output terminals (OUTPUT 1-5) are activated to allow current to flow. When volt-
age of input terminals (INPUT 1-5) corresponding to that switch changes, interface in BCM detects volt-
age change, and BCM determines that switch is ON.
SKIB8812E

BCM (BODY CONTROL MODULE)
BCS-5
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Sample Operation

When lighting switch 1ST position is turned ON, contact in combination switch turns ON. At this time if
OUTPUT 4 transistor is activated, BCM detects that voltage changes in INPUT 5.

When OUTPUT 4 transistor is ON, BCM detects that voltage changes in INPUT 5, and judges that lighting
switch 1ST position is ON. Then BCM sends tail lamp and clearance lamp request signal to IPDM E/R
using CAN communication.

When OUTPUT 4 transistor is activated again, BCM detects that voltage changes in INPUT 5, and recog-
nizes that lighting switch 1ST position is continuously ON.
NOTE:
Each OUTPUT terminal transistor is activated at 10 ms intervals. Therefore after switch is turned ON, electri-
cal loads are activated with time delay. But this time delay is so short that it cannot be detected by human
senses.
SKIB8813E

BCM (BODY CONTROL MODULE)
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BCM STATUS CONTROL
BCM changes its status depending on the operation status in order to save power consumption.
1. CAN communication status

With ignition switch ON, CAN communicates with other control units normally.

Control by BCM is being operated properly.

When ignition switch is OFF, switching to sleep mode is possible.

Even when ignition switch is OFF, if CAN communication with IPDM E/R, Intelligent Key unit or unified
meter and A/C amp. is active, CAN communication status is active.
2. Sleep transient status

This status shuts down CAN communication when ignition switch is turned OFF.

It transmits sleep request signal to IPDM E/R, Intelligent Key unit, driver seat control unit and unified
meter and A/C amp.

2 seconds after CAN communication of all control units stops, sleep transient status switches to CAN
communication inactive status.
3. CAN communication inactive status

With ignition switch OFF, CAN communication is not active.

With ignition switch OFF, control performed only by BCM is active.

When all controls that BCM performs stop, CAN communication inactive status switches to sleep sta-
tus.
4. Sleep status

BCM is activated with low power mode.

CAN communication is not active.

When CAN communication operation is detected, it switches to CAN communication status.

When a state of the following switches changes, it switches to CAN communication state.
–Ignition switch (ACC, ON)
–Key switch
–Ignition knob switch
–Hazard switch
–Door lock/unlock switch
–Front door switch (driver side, passenger side)
–Rear door switch (RH, LH)
–Trunk lid opener switch
–Trunk room lamp switch
–Combination switch (passing, lighting switch 1ST position, front fog lamp)
–Remote keyless entry receiver (lock/unlock signal)

When control performed only by BCM is required by switch, it shifts to CAN communication inactive
mode.

Status of combination switch reading function is changed.

BCS-10
BCM (BODY CONTROL MODULE)

CAN Communication UnitBKS001UH
Refer to LAN-49, "CAN System Specification Chart" .
Rear fog lamp Combination switch

Rear fog lamp

Combination meter
(Rear fog lamp indicator)
Turn signal lamp

Combination switch

Ignition switch (ON)

Turn signal lamp

Combination meter
(turn signal indicator, warning chime)
Hazard lamp Hazard switch

Turn signal lamp

Combination meter
(turn signal indicator, warning chime)
Interior room lamp timer

Key switch

Remote keyless entry receiver

Power window main switch
(door lock and unlock switch)

Front door lock assembly (driver side)

Front door switch (driver side)

Front door switch (passenger side)

Rear door switch LH

Rear door switch RH

Ignition switch (ON)

Map lamp

Personal lamp RH

Personal lamp LH

Ignition keyhole illumination
Key warning chime

Key switch

Front door switch (driver side)

Ignition switch (ON)Combination meter (warning buzzer)
Light warning chime

Combination switch

Front door switch (driver side)

Ignition switch (ON)Combination meter (warning buzzer)
Oil pressure warning lamp

IPDM E/R

Ignition switch (ON)Combination meter (warning lamp)
Front wiper and washer system

Combination switch

Combination meter

Ignition switch (ON)IPDM E/R
Headlamp washer

Headlamp washer switch

Combination switch

Ignition switch (ON)IPDM E/R
Rear window defogger

Rear window defogger switch

Ignition switch (ACC, ON)IPDM E/R
A/C switch signal

Unified meter and A/C amp.

Ignition switch (ON)ECM
Blower fan switch signal

Unified meter and A/C amp.

Ignition switch (ON)ECM System Input Output

BCM (BODY CONTROL MODULE)
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CONSULT-II Function (BCM)BKS001UK
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.
ITEMS OF EACH PART
NOTE:
CONSULT-II will only display systems the vehicle possesses.
×:Applicable
NOTE:
This item is displayed, but should not be used.BCM diagnostic test item Check item, diagnostic test mode Content
Inspection by partWORK SUPPORT Changes setting of each function.
SELF-DIAGNOSIS RESULTS BCM performs self-diagnosis of CAN communication.
DATA MONITOR Displays the input data of BCM in real time.
CAN DIAG SUPPORT MNTRThe result of transmit/receive diagnosis of CAN communication
can be read.
ACTIVE TEST Gives a drive signal to a load to check the operation.
ECU PART NUMBER ECM part number can be read.
CONFIGURATION (Not be used.)
CONSULT-II display System and itemDiagnostic test mode (Inspection by part)
WORK
SUPPORTSELF−
DIAG
RESULTSDATA
MONITORCAN
DIAG
SUP-
PORT
MNTRACTIVE
TESTECU
PA R T
NUMBERCON-
FIGU-
RATION
BCM BCM×× × ×
×
NOTE
DOOR LOCK Power door lock system×××
REAR DEFOGGER Rear window defogger××
BUZZER Warning chime××
INT LAMP Room lamp timer×××
MULTI REMOTE ENTRemote keyless entry
system×××
HEAD LAMP Headlamp×××
WIPER Wiper×××
FLASHERTurn signal lamp
Hazard lamp××
AIR CONDITONERBlower fan switch signal
A/C switch signal×
INTELLIGENT KEY Intelligent Key system×
COMB SW Combination switch×
IMMU NATS××
BATTERY SAVER Room lamp battery saver×× ×
TRUNK Trunk lid opener××
SIGNAL BUFFER Oil pressure switch××
PANIC ALARM Panic alarm×