light NISSAN TEANA 2003 Owner's Manual

ATC-146
REFRIGERANT LINES

Checking for Refrigerant LeaksBJS000JF
Perform a visual inspection of all refrigeration parts, fittings, hoses and components for signs of A/C lubricant
leakage, damage and corrosion. A/C lubricant leakage may indicate an area of refrigerant leakage. Allow
extra inspection time in these areas when using either an electrical leak detector or fluorescent dye leak
detector (SST: J-42220).
If dye is observed, confirm the leak with an electrical leak detector. It is possible a prior leak was repaired and
not properly cleaned.
When searching for leaks, do not stop when one leak is found but continue to check for additional leaks at all
system components and connections.
When searching for refrigerant leaks using an electrical leak detector, move the probe along the suspected
leak area at 1 to 2 inches per second and no further than 1/4 inch from the component.
CAUTION:
Moving the electrical leak detector probe slower and closer to the suspected leak area will improve the
chances of finding a leak.
Checking System for Leaks Using the Fluorescent Leak DetectorBJS000JG
1. Check A/C system for leaks using the UV lamp and safety goggles (SST: J-42220) in a low sunlight area
(area without windows preferable). Illuminate all components, fittings and lines. The dye will appear as a
bright green/yellow area at the point of leakage. Fluorescent dye observed at the evaporator drain open-
ing indicates an evaporator core assembly (tubes, core or expansion valve) leak.
2. If the suspected area is difficult to see, use an adjustable mirror or wipe the area with a clean shop rag or
cloth, with the UV lamp for dye residue.
3. After the leak is repaired, remove any residual dye using dye cleaner (SST: J-43872) to prevent future
misdiagnosis.
4. Perform a system performance check and verify the leak repair with an approved electrical leak detector.
NOTE:
Other gases in the work area or substances on the A/C components, for example, anti-freeze, windshield
washer fluid, solvents and lubricants, may falsely trigger the leak detector. Make sure the surfaces to be
checked are clean.
Clean with a dry cloth or blow off with shop air.
Do not allow the sensor tip of the detector to contact with any substance. This can also cause false readings
and may damage the detector.
Dye InjectionBJS000JH
(This procedure is only necessary when recharging the system or when the compressor has seized and was
replaced.)
1. Check A/C system static (at rest) pressure. Pressure must be at least 345 kPa (3.45 bar, 3.52 kg/cm
2 , 50
psi).
2. Pour one bottle (1/4 ounce / 7.4 cc) of the A/C refrigerant dye into the injector tool (SST: J-41459).
3. Connect the injector tool to the A/C low-pressure side service valve.
4. Start engine and switch A/C ON.
5. When the A/C operating (compressor running), inject one bottle (1/4 ounce / 7.4 cc) of fluorescent dye
through the low-pressure service valve using dye injector tool (SST: J-41459) (refer to the manufacture's
operating instructions).
6. With the engine still running, disconnect the injector tool from the service valve.
CAUTION:
Be careful the A/C system or replacing a component, pour the dye directly into the open system
connection and proceed with the service procedures.
7. Operate the A/C system for a minimum of 20 minutes to mix the dye with the system oil. Depending on the
leak size, operating conditions and location of the leak, it may take from minutes to days for the dye to
penetrate a leak and become visible.
8. Attach a blue label as necessary.

AV-52
INTEGRATED DISPLAY SYSTEM

Terminals and Reference Value for Display UnitBKS00226
Te r m i n a l
(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 (G) Ground Ignition signal Input ON — Battery voltage
4 (R/L) Ground Illumination signal Input ONLighting switch ON Approx. 12 V
Lighting switch OFF Approx. 0 V
6 (B) Ground Ground — ON — Approx. 0 V
7 (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).
8 (G) GroundCommunication signal
(DSP-AUD)Output ONOperate audio volume
switch
9 — Shield — — — —
10 (Y) GroundCommunication signal
(AUD-DSP)Input ONOperate audio volume
switch
11 (BR) GroundCommunication
signal (+)Input/
OutputON —
12 — Shield — — — —
13 (Y) GroundCommunication
signal (–)Input/
OutputON —
14 (L) — CAN-H — — — —
16 (P) — CAN-L — — — —
PKIA1935E
SKIB3607E
SKIB3606E
SKIB7378E
SKIB7379E

INTEGRATED DISPLAY SYSTEM
AV-57
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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"

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

INTEGRATED COLOR DISPLAY SYSTEM
AV-85
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On Board Self-Diagnosis FunctionBKS0027W
DESCRIPTION

Trouble diagnosis function of system has a self-diagnosis mode by automatic operation and a confirma-
tion mode by manual operation.

Self-diagnosis mode checks for connections between the units constituting this system, analyzes each
individual unit at the same time, and displays the results on the display.

Confirmation mode displays trouble diagnosis that require an operation and a judgment by a human
(auto-decision cannot be performed by the system), and an error history of system.
DIAGNOSIS ITEM
Mode Description
DCU Failure Diagnosis

Display control unit diagnosis

Analyzes connection between the display control unit and each unit, and operation of
each unit.
DCU
ConfirmationDCUDisplay DiagnosisColor tone and shading of the display control unit-generated image can be checked by
the display of a color bar and a gray scale.
Vehicle SignalDiagnosis of signals that are input to display control unit can be performed for speed sig-
nal, Light, IGN and Reverse.
History of ErrorMalfunctions that occurred in the past are displayed, along with the number of times each
has occurred.
Software Version Software version of each unit is displayed.
HVAC Self-diagnosis of air conditioner system is performed.
CAN Diagnosis The transmitting/receiving of CAN communication can be monitored.

INTEGRATED COLOR DISPLAY SYSTEM
AV-89
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Confirmation ModeBKS0027Y
DIAGNOSIS PROCEDURE
1. Select “DCU Confirmation”.

Each diagnosis is shown by selecting each screen switch on
DCU Confirmation screen.
DCU
Display Diagnosis
Color tone and shading of the display control unit-generated image can be checked by the display of a color
bar and a gray scale.

If RGB signal is malfunctioning, the tint of the color bar display is as follows.
SKIB0834E
R (red) signal error : Light blue (Cyan) tint
G (green) signal error : Purple (Magenta) tint
B (blue) signal error : Yellow tint
SKIB8899E

AV-90
INTEGRATED COLOR DISPLAY SYSTEM

Vehicle Signal
A comparison check can be made of each actual vehicle signal and
the signals recognized by the display control unit.
History of Error
Diagnosis results of self-diagnosis depend on if any error occurred
during the time after selecting “DCU Failure Diagnosis” until self-
diagnosis results is displayed.
Meanwhile, when an error occurs before selecting “DCU Failure
Diagnosis”, and if an error does not occur until self-diagnosis results
is displayed, a diagnosis result is judged as normal.
Consequently, a diagnosis needs to be performed with “History of
Error” for the past error that is not available with self-diagnosis.
“History of Error” stores error occurrences up to 50, and errors after
the 51st are displayed as the 50th.
SKIB0835E
Diagnosis item Display Condition Remarks
Speed SignalON When vehicle speed is more than 0 km/h (0 MPH)
Changes in indication may be delayed.
This is normal. OFF When vehicle speed is 0 km/h (0 MPH)
— Ignition switch in ACC position
LightON Lighting switch ON
—
OFF Lighting switch OFF
IGNON Ignition switch ON
—
OFF Ignition switch ACC position
ReverseON Selector lever in R position
Changes in indication may be delayed.
This is normal. OFF Selector lever in any position other than R position
— Ignition switch in ACC position
SKIB8900E

INTEGRATED COLOR DISPLAY SYSTEM
AV-107
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Tint Is Strange for The RGB ImageBKS00288
Symptom: Tint of all RGB images is strange.
1. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect display control unit and display connectors.
3. Check the malfunctioning circuit according to the symptoms.

Light blue (Cyan) tinged screen
Check continuity between display control unit harness connector
(A) M83 terminal 50 and display harness connector (B) M81 ter-
minal 17.
Check continuity between display control unit harness connector
(A) M83 terminal 50 and ground.

Purple (Magenta) tinged screen
Check continuity between display control unit harness connector
(A) M83 terminal 52 and display harness connector (B) M81 ter-
minal 6.
Check continuity between display control unit harness connector
(A) M83 terminal 52 and ground.

Yellow tinged screen
Check continuity between display control unit harness connector
(A) M83 terminal 54 and display harness connector (B) M81 ter-
minal 18.
Check continuity between display control unit harness connector
(A) M83 terminal 54 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.50 – 17 : Continuity should exist.
50 – Ground : Continuity should not exist.
SKIB7853E
52 – 6 : Continuity should exist.
52 – Ground : Continuity should not exist.
SKIB7854E
54 – 18 : Continuity should exist.
54 – Ground : Continuity should not exist.
SKIB7855E

AV-108
INTEGRATED COLOR DISPLAY SYSTEM

2. CHECK RGB SIGNAL
1. Connect display control unit and display connectors.
2. Turn ignition switch ON.
3. Start Confirmation mode. Refer to AV- 8 9 , "
Confirmation Mode" .
4. Display color bar by selecting “Display Color Spectrum Bar” on Display Diagnosis screen. Refer to AV- 8 9 ,
"Display Diagnosis" .
5. Check the malfunctioning circuit according to the symptoms.

Light blue (Cyan) tinged screen
Check voltage waveform between display control unit harness
connector M83 terminal 50 and ground with CONSULT-ll or
oscilloscope.

Purple (Magenta) tinged screen
Check voltage waveform between display control unit harness
connector M83 terminal 52 and ground with CONSULT-ll or
oscilloscope.

Yellow tinged screen
Check voltage waveform between display control unit harness
connector M83 terminal 54 and ground with CONSULT-ll or
oscilloscope.
OK or NG
OK >> Replace display.
NG >> Replace display control unit.50 – Ground:
SKIB7856ESKIB7769E
52 – Ground:
SKIB7857ESKIB7770E
54 – Ground:
SKIB7858ESKIB7771E

INTEGRATED COLOR DISPLAY SYSTEM
AV-111
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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.