2003 NISSAN TEANA Unified meter and
[x] Cancel search: Unified meter andPage 562 of 3502
AV-34
AUDIO (WITH INTEGRATED COLOR DISPLAY SYSTEM)
Removal and Installation of Audio UnitBKS0028W
REMOVAL
1. Remove instrument panel finishers (C, D). Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Remove screws (4) and remove audio unit integral with A/C and
AV switch.
3. Remove screws (4).
1. Display control unit 2. Screws 3. Bracket (LH)
4. A/C and AV switch 5. Audio unit 6. Bracket (RH)
7. Screws 8. Screws 9. Screws
10. Screws 11. Screws 12. Unified meter and A/C amp.
SKIB0872E
SKIB0873E
SKIB0874E
Page 563 of 3502
AUDIO (WITH INTEGRATED COLOR DISPLAY SYSTEM)
AV-35
C
D
E
F
G
H
I
J
L
MA
B
AV
4. Remove screws (4) and remove display control unit from
bracket.
5. Remove screws (2) and remove unified meter and A/C amp.
from bracket.
6. Remove screws (2) and remove audio unit with bracket.
7. Remove screws (4) and remove bracket.
CAUTION:
Be careful not to allow foreign material to enter from CD
slot.
INSTALLATION
Note the following, and installation is the reverse order of removal.
CAUTION:
Unified meter and A/C amp. screws (2) are different from other securing screws. Never confuse them
when installing.
SKIB0875E
SKIB0876E
SKIB0877E
SKIA6297E
Page 569 of 3502
INTEGRATED DISPLAY SYSTEM
AV-41
C
D
E
F
G
H
I
J
L
MA
B
AV
INTEGRATED DISPLAY SYSTEMPFP:28090
System DescriptionBKS0021Y
For system operation information, refer to Owner's Manual.
INTEGRATED DISPLAY SYSTEM
The display unit transmits/receives data signals to/from each control unit with CAN communication. It per-
forms an arithmetical operation on fuel information values by using data obtained from the control units,
and then displays the calculated values on the screen.
The display unit receives vehicle speed signals that are transmitted from the unified meter and A/C amp.,
performs an arithmetical operation on drive information values, and then displays the calculated values on
the screen.
Component DescriptionBKS002D1
DISPLAY UNIT
It receives operation signals of audio system and air conditioner
system from A/C and AV switch, and transmits the operation sig-
nal of audio system to the audio unit through the communication
line and transmits the operation signal of air conditioner system
to the unified meter and A/C amp. through CAN communication.
Display signal from audio unit is transmitted to display unit
through the communication line, and then the operating state of
the audio system is displayed in the screen.
Display signal from unified meter and A/C amp. is transmitted to
display unit through the CAN communication, and then the oper-
ating state of the air conditioner system is displayed in the
screen.
A/C AND AV SWITCH
A/C and AV switch, an integrated combination of audio system
and air conditioner system switches, are adopted.
Operation signal of audio system is transmitted to the audio unit
through display unit with the communication line.
Operation signal of air conditioner system is transmitted to uni-
fied meter and A/C amp. through display unit with CAN commu-
nication.
CAN Communication UnitBKS00220
Refer to LAN-49, "CAN System Specification Chart" .
Component Parts LocationBKS00221
Refer to AV- 5 , "Component Parts Location" .
SKIB8803E
SKIB8803E
Page 585 of 3502
INTEGRATED DISPLAY SYSTEM
AV-57
C
D
E
F
G
H
I
J
L
MA
B
AV
Symptom ChartBKS0022B
Symptom Check item
All images are not displayed.
Display unit power supply and ground circuit
Display unit
Screen does not switch to nighttime mode after the
lighting switch is turned ON.
Display unit Illumination signal circuit
Display unit
TRIP and FUEL ECON screen do not appear.
Display unit ignition signal circuit
Display unit
Trip odometer (DIST) indication is malfunction-
ing.
Average vehicle speed (AVG) indication is mal-
functioning.
Vehicle speed signal circuit between unified meter and A/C amp. and display
unit
Display unit
Unified meter and A/C amp.
Average fuel consumption (AVG) indication is mal-
functioning.
Vehicle speed signal circuit between unified meter and A/C amp. and display
unit
CAN communication signal circuit
NOTE:
Diagnosis Procedure
Connect CONSULT-II. Select “METER A/C AMP”, and then, select “SELF-
DIAG RESULTS”. Check that “CAN COMM CIRC [U1000]” is indicated as the
diagnosis result. The communication with the unified meter and A/C amp. is
normal if not indicated. Repair the root cause if indicated. Refer to DI-32, "
DTC
[U1000] CAN Communication Circuit" .
Display unit
Unified meter and A/C amp.
Distance to empty (DTE) indication is malfunction-
ing.
CAN communication signal circuit
NOTE:
Diagnosis Procedure
Connect CONSULT-II. Select “METER A/C AMP”, and then, select “SELF-
DIAG RESULTS”. Check that “CAN COMM CIRC [U1000]” is indicated as the
diagnosis result. The communication with the unified meter and A/C amp. is
normal if not indicated. Repair the root cause if indicated. Refer to DI-32, "
DTC
[U1000] CAN Communication Circuit" .
Display unit
Unified meter and A/C amp.
Unable to operate system with A/C and AV switch. Refer to AV- 5 8 , "
Unable to Operate System with A/C and AV Switch"
Page 589 of 3502
INTEGRATED COLOR DISPLAY SYSTEM
AV-61
C
D
E
F
G
H
I
J
L
MA
B
AV
INTEGRATED COLOR DISPLAY SYSTEMPFP:28090
System DescriptionBKS0027J
For system operation information, refer to Owner's Manual.
INTEGRATED COLOR DISPLAY SYSTEM
Each control unit that comprises the system is connected with a communication circuit. It transmits/
receives data signals including request signals and response signals, and controls the system.
The display control unit transmits/receives data signals to/from each control unit with CAN communica-
tion. It performs an arithmetical operation on fuel information values by using data obtained from the con-
trol units, and then displays the calculated values on the screen.
The display control unit receives vehicle speed signals that are transmitted from the unified meter and A/
C amp., performs an arithmetical operation on drive information values, and then displays the calculated
values on the screen.
The images displayed on the monitor screen contain display control unit-generated RGB images, and rear
view images transmitted from the rear view camera control unit.
The display control unit controls image switching and image quality adjustments by communications with
the display.
REAR VIEW MONITOR
A rear view monitor was set to vehicle, which can check rearward on screen when backing up the vehicle.
For easier recognition of the vehicle width and the distance to the objects, the guide lines of distances and
rear are combined with the rear view image.
Image quality of the rear view image and of the RGB image can be adjusted separately.
SKIB8807E
Page 590 of 3502
AV-62
INTEGRATED COLOR DISPLAY SYSTEM
Component DescriptionBKS0027K
DISPLAY CONTROL UNIT
Display control unit draws a status of the audio system and air
conditioner system, a TRIP screen, a FUEL ECONOMY screen,
etc., and transmits the image signals to the display screen.
It receives operation signals of audio system and air conditioner
system from A/C and AV switch, and transmits the operation sig-
nal of audio system to the audio unit through the communication
line and transmits the operation signal of air conditioner system
to the unified meter and A/C amp. through CAN communication.
Display signal from audio unit is transmitted to display control
unit through the communication line, and then the operating
state of the audio system is displayed in the screen.
Display signal from unified meter and A/C amp. is transmitted to
display control unit through the CAN communication, and then the operating state of the air conditioner
system is displayed in the screen.
DISPLAY
Images on the display include RGB image and rear view image
displayed when setting the select lever to R range.
Display control unit controls images on the display.
A/C AND AV SWITCH
A/C and AV switch, an integrated combination of audio system
and air conditioner system switches, are adopted.
Operation signal of audio system is transmitted to the audio unit
through display control unit with the communication line.
Operation signal of air conditioner system is transmitted to uni-
fied meter and A/C amp. through display control unit with CAN
communication.
REAR VIEW CAMERA
Rear view camera transmits rear view image signals to the dis-
play screen through the rear view camera control unit, when
reverse signal is input.
The rear view image is a mirror image reversed left and right
that is the same as seeing rear side with a room mirror.
SKIB0800E
SKIB8808E
SKIB8808E
SKIB0802E
Page 645 of 3502
BCM (BODY CONTROL MODULE)
BCS-3
C
D
E
F
G
H
I
J
L
MA
B
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
Page 649 of 3502
BCM (BODY CONTROL MODULE)
BCS-7
C
D
E
F
G
H
I
J
L
MA
B
BCS
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.