Power NISSAN TEANA 2003 Owners Manual

AV-80
INTEGRATED COLOR DISPLAY SYSTEM

Terminals and Reference Value for DisplayBKS0027S
Te r m i n a l
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+–Ignition
switchOperation
1 (B) Ground Ground — ON — Approx. 0 V
2 (L/B) GroundPower supply
(Inverter) Input ON — Approx. 9 V
3 (L/Y) Ground Power supply (Signal) Input ON — Approx. 9 V
4 — Shield — — — —
6 (B) Ground RGB signal (G: green) Input ONStart DCU Confirmation
mode, and then display
color bar by selecting “Dis-
play Color Spectrum Bar”
on Display Diagnosis
screen
7 (W) Ground Ground (RGB) — ON — Approx. 0 V
8 (B) GroundHorizontal
synchronizing (HP)
signalOutput ON —
9 (G) Ground RGB area (YS) signal Input ONWhen displaying RGB
imageApprox. 5 V
When displaying rear view
imageApprox. 0 V
11 (BR) GroundCommunication signal
(DCU-DSP)Input ON —
13 (P) Ground Ground (Inverter) — ON — Approx. 0 V
14 (R/W) Ground Ground (Signal) — ON — Approx. 0 V
15 (W) GroundRear view image
signalInput ONSet the selector lever in R
position, and then display
the rear view image
17 (R) Ground RGB signal (R: red) Input ONStart DCU Confirmation
mode, and then display
color bar by selecting “Dis-
play Color Spectrum Bar”
on Display Diagnosis
screen
SKIB7770E
SKIB3601E
SKIB3607E
SKIB3608E
SKIB7769E

AV-82
INTEGRATED COLOR DISPLAY SYSTEM

Terminals and Reference Value for A/C and AV SwitchBKS0027T
Te r m i n a l
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+–Ignition
switchOperation
1 (G/B) 3 (B/W)Remote control signal
AInput ONPress and hold MODE
switchApprox. 0 V
Press and hold SEEK
DOWN switchApprox. 1.7 V
Press and hold VOL DOWN
switchApprox. 3.3 V
Except for above Approx. 5 V
2 (R) 3 (B/W)Remote control signal
BInput ONPress and hold POWER
switchApprox. 0 V
Press and hold SEEK UP
switchApprox. 1.7 V
Press and hold VOL UP
switchApprox. 3.3 V
Except for above Approx. 5 V
3 (B/W) GroundRemote control
ground— ON — Approx. 0 V
7 (V) Ground ACC power supply Input ACC — Battery voltage
11 (Y) GroundCommunication
signal (–)Input/
OutputON —
12 (BR) GroundCommunication
signal (+)Input/
OutputON —
13 (B) Ground Ground — ON — Approx. 0 V
14 — Shield — — — —
SKIB7379E
SKIB7378E

INTEGRATED COLOR DISPLAY SYSTEM
AV-83
C
D
E
F
G
H
I
J
L
MA
B
AV

Terminals and Reference Value for Rear View Camera Control UnitBKS0027U
Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+–Ignition
switchOperation
1 (Y) Ground Battery power supply Input OFF — Battery voltage
2 (V) Ground ACC power supply Input ACC — Battery voltage
3 (B) Ground Ground — ON — Approx. 0 V
4 (G/W) Ground Reverse signal Input ONSelector lever in R position Approx. 12 V
Other than selector lever in
R positionApprox. 0 V
5 (BR/W) GroundCamera-connection
recognition signalOutput ON — Approx. 0 V
6 (O) —Data transmit/receive
signal—— — —
8 (P) Ground Camera power supply Output ONSet the selector lever in R
position, and then display
the rear view imageApprox. 6 V
9 — Shield — — — —
10 (W) GroundRear view image
signalInput ONSet the selector lever in R
position, and then display
the rear view image
11 — Shield — — — —
12 (BR) GroundRear view image
signalOutput ONSet the selector lever in R
position, and then display
the rear view image
SKIB3608E
SKIB3608E

AV-88
INTEGRATED COLOR DISPLAY SYSTEM

SELF-DIAGNOSIS RESULT
Check the applicable display in the following table, and then repair the malfunctioning parts.
Quick Reference Table
Self-diagnosis result screen Possible cause Action to take
Display control unit malfunction is
detected.Replace display control unit.
Malfunction is detected on communi-
cation signal between display control
unit and display.1. Check communication circuit between
display control unit and display.
2. Check communication signal between
display control unit and display.
3. If the results from the above checkup
show no malfunction, replace either
display control unit or display, and then
start self-diagnosis.
4. If self-diagnosis results still show any
malfunction, replace the other unit.

Audio unit power supply circuit mal-
function is detected.

Malfunction is detected on commu-
nication signal between display con-
trol unit and audio unit.1. Check audio unit power supply circuit.
2. Check communication circuit between
display control unit and audio unit.
3. Check communication signal between
display control unit and audio unit.
4. If the results from the above checkup
show no malfunction, replace either
display control unit or audio unit, and
then start self-diagnosis.
5. If self-diagnosis results still show any
malfunction, replace the other unit.

CD auto changer power supply cir-
cuit malfunction is detected.

Malfunction is detected on commu-
nication signal between audio unit
and CD auto changer.1. Check CD auto changer power supply
circuit.
2. Check communication circuit between
audio unit and CD auto changer.
3. Check communication signal between
audio unit and CD auto changer.
4. If the results from the above checkup
show no malfunction, replace either
audio unit or CD auto changer, and
then start self-diagnosis.
5. If self-diagnosis results still show any
malfunction, replace the other unit.
SKIB8827E
SKIB8828E
SKIB8829E
SKIB8830E

INTEGRATED COLOR DISPLAY SYSTEM
AV-91
C
D
E
F
G
H
I
J
L
MA
B
AV

Diagnosis by History of Error
When having a difficulty on the investigation of cause due to multiple errors with a reproducible malfunction,
turn ON the ignition switch from OFF mode after making a memo of the item and number of time (or delete
“History of Error”). Check “History of Error” again after the malfunction was reproduced, and then perform
diagnosis focusing on the item of which number of time increased.
Error item Possible cause Action to take
DCU malfunctionDisplay control unit malfunction is
detected.Replace display control unit.
Display Connect Error

Display power supply and ground
circuit malfunction is detected.

Malfunction is detected on commu-
nication signal between display con-
trol unit and display.1. Delete the “History of Error”, and turn
OFF ignition switch.
2. Turn ON ignition switch, and make sure
of the “History of Error”.
3. If the error item listed left is displayed
again, GO TO 4. If the error item is not
displayed, end the diagnosis. (This is
not a malfunction.)
4. Check display power supply and
ground circuit.
5. Check communication circuit between
display control unit and display.
6. Check communication signal between
display control unit and display.
7. If the results from the above checkup
show no malfunction, replace either
display control unit or display, and then
start self-diagnosis.
8. If self-diagnosis results still show any
malfunction, replace the other unit.

AV-92
INTEGRATED COLOR DISPLAY SYSTEM

Software Version
Software version of each unit is displayed.
HVAC
Self-diagnosis of air conditioner system is performed. Refer to AT C - 4 6 , "Self-diagnosis Function" .
Audio Connect Error

Audio unit power supply circuit mal-
function is detected.

Malfunction is detected on commu-
nication signal between display con-
trol unit and audio unit.1. Start self-diagnosis, and make sure of
the result.
2. If any error is found, GO TO 3. If any
error is not found, delete the “History of
Error” and end the diagnosis. (This is
not a malfunction.)
3. Check audio unit power supply circuit.
4. Check communication circuit between
display control unit and audio unit.
5. Check communication signal between
display control unit and audio unit.
6. If the results from the above checkup
show no malfunction, replace either
display control unit or audio unit, and
then start self-diagnosis.
7. If self-diagnosis results still show any
malfunction, replace the other unit.
SW Error

A/C and AV switch power supply
and ground circuit malfunction is
detected.

Malfunction is detected on commu-
nication signal between display con-
trol unit and A/C and AV switch.1. Delete the “History of Error”, and turn
OFF ignition switch.
2. Turn ON ignition switch, and make sure
of the “History of Error”.
3. If the error item listed left is displayed
again, GO TO 4. If the error item is not
displayed, end the diagnosis. (This is
not a malfunction.)
4. Check A/C and AV switch power supply
and ground circuit.
5. Check communication circuit between
display control unit and A/C and AV
switch.
6. If the results from the above checkup
show no malfunction, replace either
display control unit or A/C and AV
switch, and then start self-diagnosis.
7. If self-diagnosis results still show any
malfunction, replace the other unit. Error item Possible cause Action to take

INTEGRATED COLOR DISPLAY SYSTEM
AV-97
C
D
E
F
G
H
I
J
L
MA
B
AV

Unable to Operate System with A/C and AV SwitchBKS00284
Symptom: Unable to operate A/C system and audio system with A/C and AV switch. (Unable to start self-diag-
nosis.)
1. CHECK CONDITION
1. Turn ignition switch ON.
2. Check if an image is displayed on the screen.
Is an image displayed on the screen?
YES >> GO TO 2.
NO >> Repair malfunctioning part. Refer to AV- 9 9 , "
All Images Are Not Displayed" .
2. SELF-DIAGNOSIS OF A/C AND AV SWITCH
Start self-diagnosis of A/C and AV switch, and check the self-diagnosis result. Refer to AV- 8 4 , "
A/C and AV
Switch Self-Diagnosis Function" .
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. CHECK A/C AND AV SWITCH POWER SUPPLY AND GROUND CIRCUIT
1. Check voltage between A/C and AV switch harness connector
terminal and ground.
2. Turn ignition switch OFF.
3. Disconnect A/C and AV switch connector.
4. Check continuity between A/C and AV switch harness connector
M40 terminal 13 and ground.
OK or NG
OK >> Replace A/C and AV switch.
NG >> Repair harness or connector.
Terminals
OFF ACC ON (+)
(–)
Connector Terminal
M40 7 Ground 0 VBattery
voltageBattery
voltage
13 – Ground : Continuity should exist.
SKIB8804E
SKIB8805E

AV-100
INTEGRATED COLOR DISPLAY SYSTEM

4. CHECK DISPLAY POWER SUPPLY AND GROUND CIRCUIT (INVERTER AND SIGNAL)
1. Connect display control unit and display connectors.
2. Turn ignition switch ON.
3. Check voltage between display control unit harness connector
M82 terminals 2 and 5.
4. Check voltage between display control unit harness connector
M82 terminals 4 and 7.
OK or NG
OK >> Replace display.
NG >> Replace display control unit.
5. CHECK DISPLAY CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT
1. Check voltage between display control unit harness connector
terminals and ground.
2. Turn ignition switch OFF.
3. Disconnect display control unit connector.
4. Check continuity between display control unit harness connector
M82 terminal 3 and ground.
OK or NG
OK >> Replace display control unit.
NG >> Repair harness or connector.2 – 5 : Approx. 9 V
SKIB7841E
4 – 7 : Approx. 9 V
SKIB7842E
Terminals
OFF ACC ON (+)
(–)
Connector Terminal
M821
GroundBattery
voltageBattery
voltageBattery
voltage
10 0 VBattery
voltageBattery
voltage
3 – Ground : Continuity should exist.
SKIB7843E
SKIB7844E

INTEGRATED COLOR DISPLAY SYSTEM
AV-101
C
D
E
F
G
H
I
J
L
MA
B
AV

Rear View Image Is Not Displayed (RGB Image Is Displayed)BKS00286
Symptom: Rear view image is not displayed when selector lever is set in R position. (RGB image is displayed.)
1. CHECK CONDITION
1. Turn ignition switch ON.
2. When setting selector lever in R position, make sure that the screen does not change or changes into the
screen where nothing is displayed.
Does the screen change into the screen where nothing is displayed?
YES >> GO TO 2.
NO >> GO TO 12.
2. CONSULT-II FUNCTIONS
1. Connect “CONSULT-II”. Refer to AV- 9 4 , "
CONSULT-II BASIC OPERATION PROCEDURE" .
2. Check if “REARVIEW CAMERA” is shown on the SELECT SYSTEM screen.
Is
“REARVIEW CAMERA” shown?
YES >> GO TO 3.
NO >> Check rear view camera control unit power supply and ground circuit, and repair malfunctioning
part.
3. CONSULT-II FUNCTIONS
Check if reverse signals input to the rear view camera control unit are normal with DATA MONITOR. Refer to
AV- 9 4 , "
DATA MONITOR" .
OK or NG
OK >> GO TO 4.
NG >> Check rear view camera control unit reverse signal circuit, and repair malfunctioning part.
4. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect rear view camera control unit and rear view camera connectors.
3. Check continuity between rear view camera control unit harness
connector (A) B36 terminals 8, 10 and rear view camera har-
ness connector (B) T32 terminals 1, 3.
4. Check continuity between rear view camera control unit harness
connector (A) B36 terminals 8, 10 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.8 – 1 : Continuity should exist.
10 – 3 : Continuity should exist.
8, 10 – Ground : Continuity should not exist.
SKIB8838E

AV-102
INTEGRATED COLOR DISPLAY SYSTEM

5. CHECK REAR VIEW CAMERA GROUND CIRCUIT
Check continuity between rear view camera harness connector T32
terminal 2 and ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
6. CHECK REAR VIEW CAMERA POWER SUPPLY CIRCUIT
1. Connect rear view camera control unit and rear view camera connectors.
2. Turn ignition switch ON.
3. When displaying rear view image, check voltage between rear
view camera control unit harness connector B36 terminal 8 and
ground.
OK or NG
OK >> GO TO 7.
NG >> Replace rear view camera control unit.
7. CHECK REAR VIEW IMAGE SIGNAL
When displaying rear view image, check voltage waveform between
rear view camera control unit harness connector B36 terminal 10
and ground with CONSULT-ll or oscilloscope.
OK or NG
OK >> GO TO 8.
NG >> Replace rear view camera.2 – Ground : Continuity should exist.
SKIB8839E
8 – Ground : Approx. 6 V
SKIB6987E
10 – Ground:
SKIB6988ESKIB3608E