ignition NISSAN TEANA 2003 Service Manual

INTEGRATED DISPLAY SYSTEM
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Terminals and Reference Value for A/C and AV SwitchBKS00227
Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+–Ignition
switchOperation
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

AV-54
INTEGRATED DISPLAY SYSTEM

A/C and AV Switch Self-Diagnosis FunctionBKS0022A
Performing self-diagnosis makes it possible to check operation of A/C and AV switch indicator (LED) and other
switches.
STARTING THE SELF-DIAGNOSIS MODE
1. Turn ignition switch OFF.
2. With three switches (DEF, REC/FRE and MODE) pressed simul-
taneously, turn the ignition switch to ACC.
DIAGNOSIS FUNCTION
The following are checked:

All the indicators (LED) in the A/C and AV switch.

Continuity of the switches by sounding the buzzer when pressing the A/C and AV switch.
NOTE:

Indicators (LED) of REC/FRE switch change to “FRE” → “REC” → “FRE” every time the REC/FRE switch
is pressed. (These two do not turn on at the same time.)

Impossible to check rear window defogger switch operation (No beep sound even under normal status).
EXITING THE SELF-DIAGNOSIS MODE

Turn ignition switch OFF.
SKIB1188E

AV-56
INTEGRATED DISPLAY SYSTEM

HVAC DIAG
Self-diagnosis of air conditioner system is performed. Refer to AT C -
46, "Self-diagnosis Function" .
VERSION
Software version of display unit, A/C and AV switch, and audio unit
are displayed.
DIAG END
Exit from self-diagnosis mode and return to normal screen.
EXITING THE SELF-DIAGNOSIS MODE
Turn ignition switch OFF or press audio preset No. “4”.
SKIA7025J
SKIA7026J

INTEGRATED DISPLAY SYSTEM
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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"

AV-58
INTEGRATED DISPLAY SYSTEM

Unable to Operate System with A/C and AV SwitchBKS0022J
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- 5 7 , "
Symptom Chart" .
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- 5 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

INTEGRATED DISPLAY SYSTEM
AV-59
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AV

4. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect display unit and A/C and AV switch connectors.
3. Check continuity between display unit harness connector (A)
M47 terminals 11, 13 and A/C and AV switch harness connector
(B) M40 terminals 12, 11.
4. Check continuity between display unit harness connector (A)
M47 terminals 11, 13 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK A/C AND AV SWITCH AND DISPLAY UNIT
1. Replace A/C and AV switch or display unit.
2. Make sure system can be operated by A/C and AV switch.
OK or NG
OK >> INSPECTION END
NG >> Replace the other unit.11 – 12 : Continuity should exist.
13 – 11 : Continuity should exist.
11, 13 – Ground : Continuity should not exist.
SKIB8806E

INTEGRATED COLOR DISPLAY SYSTEM
AV-77
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Terminals and Reference Value for Display Control UnitBKS0027R
Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+–Ignition
switchOperation
1 (Y) Ground Battery power supply Input OFF — Battery voltage
2 (L/B) GroundPower supply
(Inverter) Output ON — Approx. 9 V
3 (B) Ground Ground — ON — Approx. 0 V
4 (L/Y) Ground Power supply (Signal) Output ON — Approx. 9 V
5 (P) Ground Ground (Inverter) — ON — Approx. 0 V
6 (G/W) Ground Reverse signal Input ONSelector lever in R position Approx. 12 V
Selector lever except in R
positionApprox. 0 V
7 (R/W) Ground Ground (Signal) — ON — Approx. 0 V
8 (BR/W) GroundCamera-connection
recognition signalInput ONConnected to rear view
camera control unit connec-
torApprox. 0 V
Not connected to rear view
camera control unit connec-
torApprox. 5 V
10 (V) Ground ACC power supply Input ACC — Battery voltage
12 (G) Ground Ignition signal Input ON — Battery voltage
14 (R/L) Ground Illumination signal Input ONLighting switch ON Approx. 12 V
Lighting switch OFF Approx. 0 V
16 (V/W) GroundVehicle speed signal
(8-pulse)Input ONWhen vehicle speed is
approx. 40 km/h (25 MPH)NOTE:
Maximum voltage may be 5 V
due to specifications (connected
units).
25 (L) — CAN-H — — — —
26 (P) — CAN-L — — — —
28 (BR) GroundCommunication
signal (+)Input/
OutputON —
29 — Shield — — — —
30 (Y) GroundCommunication
signal (–)Input/
OutputON —
PKIA1935E
SKIB7378E
SKIB7379E

AV-78
INTEGRATED COLOR DISPLAY SYSTEM

36 (BR) GroundCommunication signal
(DCU-DSP)Output ON —
37 — Shield — — — —
38 (Y) GroundCommunication signal
(DSP-DCU)Input ON —
39 — Shield — — — —
40 (G) GroundCommunication signal
(DCU-AUD)Output ONOperate audio volume
switch
42 (Y) GroundCommunication signal
(AUD-DCU)Input ONOperate audio volume
switch
47 (W) Ground Ground (RGB) — ON — Approx. 0 V
49 — Shield — — — —
50 (R) 47 (W) RGB signal (R: red) Output ONStart DCU Confirmation
mode, and then display
color bar by selecting “Dis-
play Color Spectrum Bar”
on Display Diagnosis
screen
51 (G) Ground RGB area (YS) signal Output ONWhen displaying RGB
imageApprox. 5 V
When displaying rear view
imageApprox. 0 V
52 (B) 47 (W) RGB signal (G: green) Output ONStart DCU Confirmation
mode, and then display
color bar by selecting “Dis-
play Color Spectrum Bar”
on Display Diagnosis
screen Te r m i n a l
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+–Ignition
switchOperation
SKIB3607E
SKIB3606E
SKIB3607E
SKIB3606E
SKIB7769E
SKIB7770E

INTEGRATED COLOR DISPLAY SYSTEM
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53 (W) GroundVe r ti c a l
synchronizing (VP)
signalInput ON —
54 (G) 47 (W) RGB signal (B: blue) Output ONStart DCU Confirmation
mode, and then display
color bar by selecting “Dis-
play Color Spectrum Bar”
on Display Diagnosis
screen
55 (B) GroundHorizontal
synchronizing (HP)
signalInput ON —
56 (R) GroundRGB synchronizing
signalOutput ONWhen displaying RGB
image Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+–Ignition
switchOperation
SKIB3598E
SKIB7771E
SKIB3601E
SKIB3603E

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