NISSAN GT-R 1998 Service Manual

REMOTE CONTROL ENTRY SYSTEM
lnspection before Trouble Diagnoses
Check system.
Check that other systems that use the following signals work
properly.
Check that component connectors are connected properly.
Trouble Diagnoses
SYMPTOM CHART
Symptom
None of the doors lock with the remote
control switch.
None of the doors unlock with the
remote control switch.
Door locks other than the driver door do
not operate with the remote control
switches.
Only the driver door lock does not oper-
ate with the remote control switch. Door
switch circuit Malfunctioning item
Faulty door switch to
remote control entry control unit
harness Possible cause
Key-in detection switch circuit
Faulty key-in detection switch to remote control entry control
unit harness
Remote control entry control unit
Key-in detection switch circuit
Faulty remote control entry control unit
Faulty key-in detection switch to remote control entry control
unit harness
Remote control entry control unit
Central door lock system circuit
Remote control entry control unit
Driver door lock actuator circuit
Remote control entry control unit
Faulty remote control entry control unit
Refer to
"CENTRAL DOOR LOCK SYSTEM", EL-2. Faulty combination meter (meter control unit) to remote
control entry control unit harness
Faulty remote control entry control unit
Faulty driver door lock actuator Faulty driver door lock actuator to remote control entry
control unit harness
Faulty remote control entry control unit
mA before
Use lithium
checking ihe battery.
photo battery (CRI 620
Component Parts lnspection
BATERY CHECK
Specification: Approx. 2.5 - 3.OV
CAUTION:
Connect resistance
(300Q) so that the current is approx. 10
or equivalent) for
replacement.

REMOTE CONTROL ENTRY SYSTEM
ID Code Entry Procedure
Enter the identity (ID) code manually when:
remote controller or control unit is replaced.
an additional remote controller is activated.
To enter the ID code, follow the procedures below.
PROCEDURE
I Close all doors and lock driveis side door. I
Insert and remove the key from the ignition more than six times within 10 seconds.
(Power door lock will then unlock.)
Within
3 seconds after door lock is unlocked, turn ignition key switch to "ACCn posi-
tion and lock the driver's side door.
At this time, the original ID codes are erased.
Push any button on the new remote controller once. (Power door lock will then
unlock.)
At this time, the new ID code is entered. e
Lock driver's side door.
Do you
want to enter any additional remote controller ID codes?
A maximum four ID codes may be entered. Any attempt to enter more will be
ignored.
I Open driver's side door or turn the ignition key switch to 'OFF position. I
No
END.
After entering the identity (ID) code, check the operation of remote control
entry system.
Yes
NOTE
If you need to activate more than two additional new remote controllers, repeat the procedure
"Additional ID code entry" for each new remote controller.
If the same ID code that exists in the memory is input, the entry will be ignored.
Entry of maximum four ID codes is allowed and any attempt to enter more will be ignored.

POWER WINDOW SYSTEM
System Description
When the ignition switch is turned OFF, timer function allows
the driver door power window to operate for up to approxi-
mately
15 minutes. Opening (door switch ON) and closing
(door switch OFF) the driver door or entering the ignition switch
OFF to ON signal will reset the timer.
If the driver door window is obstructed when it is going up, the
window moves down approximately
150 mm.
OPERATING CONDITIONS
The driver door window is between fully-open position and
almost fully-closed position (with the limit switch
ON).
a Automatic operation when the ignition switch is turned ON
a Automatic or manual operation when the ignition switch is
turned to any position other than ON (with the timer active)
Precautions
When the driver door window is between fully-open position
and almost fully-closed position with the limit switch
ON,
removing or installing the battery or the power window main
switch will deactivate the auto
UP mode and the timer function.
If the step above has been taken, operate the power window
switch to close the driver door glass fully. This activates the
auto
UP mode and the timer function.
Component Parts Location
) Dash panel, driver side Driver door
power window motor (limit switch and encoder built-in)
(amplifier built-in) OCC3269D

POWER WINDOW SYSTEM
Circuit Diagram
PiW SW power supply
I
.20(14) Lmt sw sgnai ")' Encoder power supply '8112 ' Encoder pulse signal I It>.
v Driver door PNV mot01
W (4-door Sedan)
Driver door
PMI motor
W
DOWN signal ~~~. Dz
UP signal 6 door P/W
( )' 2-door
Coupe DOWN signal
13 UP signal PMI maln SW connector 16 @-door Sedan) 9(11)
17 DOWN signal 2 -r UP signal Drrver I-------------J
I-
$ 4-door Sedan only
- 891011 141516 - Passenger door and
PiW
main
SW connector
(2-door Coupe) rear RH & LH
door
PiW SW connector OCC3265D 1
Power Window Main Switch Input/Output
Signal Specifications
Signal name
Limit switch and encoder
ground
( ): 2-door Coupe
Measurir
Ignition switch
ON or another position
(Timer is in operation.)
-
condition
Terminal No.
Specification
Operation or condition
Approx.
OV
Encoder pulse signal Approx.
2V
ON
or another position
(Timer is in operation.) Power window motor
is in
operation.
Driver door window is
between fully-open position and almost fully-closed
posit~on. (ON)
Driver door window is
between almost fully-closed position and fully-closed position. (OFF)
DOWN operation
Other than DOWN operation Approx.
OV
ON
or another position
(Timer is in operation.)
Lim~t
switch signal
Approx.
5V
Driver door power window
motor DOWN signal ON
or another position
(Timer is in operation.) Approx. 12V
Approx. OV
Approx. 12V Battery

POWER WINDOW SYSTEM
Power Window Main Switch Input/Output
Signal Specifications (Cont'd) -
Terminal No.
Ground Signal
name
Driver door switch signal
Driver door power window
motor UP signal
Rear RH door power window
DOWN signal Specification
Approx.
OV
Approx. 12V
Measuring condition
ON or another position
(Timer is in operation.)
Encoder power supply Ignition switch
-
ON
or another position
(Tmer is in operation.)
Passenger door power win-
dow DOWN signal Operation
or condition
Driver door is opened. (ON)
-
Driver door is closed. (OFF)
Ignition power supply
Rear RH door power window
UP signal
ON
Rear LH door power window
DOWN signal
Rear LH door power window
UP signal
Passenger door power
win-
3ow UP signal
Power supply to the
passen-
jer door and rear RH
8 LH
joor
power window switch
UP operation
The rear
RH window DOWN
switch in the main switch is
operated. Approx.
OV
Approx. 12V
Other than UP operation
-
Approx. 12V
-- -- Appro~. OV
Approx. 5V
Operation other than
above
-
The passenger door DOWN
switch in the main switch is
operated.
Operation other than above Approx.
OV
Approx. 12V
Approx. 12V
Approx. OV
The
rear RH window UP switch in the main switch is operated.
Operation other than above
The rear LH window UP
switch in the main switch
is operated.
--
Appro~. 12V
Approx. OV
The rear LH window DOWN
switch in the main switch is operated.
Operation other than above
Approx.
12V
Approx. 12V
Approx. OV
Operation other than above
The passenger door UP
switch in the main switch is
operated.
-
I
Approx. 12V
-- - Approx. OV
Approx. 12V
Operation other than above - - Approx. OV

POWER WINDOW SYSTEM
Inspection before Trouble Diagnoses
Check that other systems that use the following signals work
properly.
Check that component connectors are connected properly.
Trouble Diagnoses
SYMPTOM CHART @
Timer function is not deactivated, with the
operation conditions met, when the driver
door switch is turned
ON and OFF.
switch
Limit switch circuit
The driver door glass is not reversed
when it was obstructed.
The driver door glass is reversed when it
goes up and comes near the
fullyclosed
position in the auto
UP mode. Limit
switch circuit
Encoder circuit
I
Power window main
The driver door glass is reversed as soon switch
as it starts to go up in the auto UP mode.
I Door glass slide condi-
tion
The driver door glass is reversed at the
position other than above when it
is going
up in the auto UP mode. Power window
main I Door glass slide condi-
tion Possible
cause
Faulty driver door switch to power window main switch harness AT
Faulty power window main switch
Faulty driver door power window motor (Limit switch is poorly adjusted.) BR Faulty driver door power window motor (limit switch) 0 Faulty driver door power window motor (limit switch) to power window main
switch harness
87'
Faulty power window main ~Mtch
0 Faulty driver door power window motor (Limit switch is poorly adjusted.) R8 Faulty driver door power window motor (limit switch) Faulty driver door power window motor (limit switch) to power window main
switch harness
HA
Faulty power window main switch
Faulty driver door power window motor (encoder) Faulty driver door power window motor (encoder) to power window main
switch harness
Faulty power window main switch
Foreign objects on the glass, glass run channel rubber (4-door Sedan) or
weatherstrip (2-door Coupe)
Abrasion or deformation of glass run channel rubber (4-door Sedan) or
weatherstrip (2-door Coupe)
Sash is not angled inboard or outboard properly (4-door Sedan) or glass is
not angled inboard or outboard properly (2-door Coupe)
Faulty power window main switch
Foreign objects on the glass, glass run channel rubber (4-door Sedan), or
weatherstrip (2-door Coupe)
Abrasion or deformation of glass run channel rubber (4-door Sedan) or
weatherstrip (2-door Coupe)
Sash is not angled inboard or outboard properly (4-door Sedan) or glass is
not angled inboard or outboard properly (2-door Coupe)

I Sunroof motor assembly 1 Component Parts Location
I Sunroof switch < OCEM57DI
Circuit Diagram
CIB PMl relay
Sunroof motor assembly (Fully-closed position)
I I Limit SW 2 I -1 I i
3
5
1 1 -- LL
1 --
CLOSE relay - I ~irnitsw~ I
Sunroof SW
Slide SW
CLOSE 5--1
Sunroof Switch and Sunroof Motor Assembly
InputlOutput Signal Specifications
-
Measuring condition
I I
- Operation
Terminal No.
1
2
Ignition switch
3
4
5
ON
ON
'lased
ON
ON
ON Approx.
12V
OV
~~ll~ closed position to fully open position
Approx. 2V
OV
Approx. OV OV
OV
'Pen
Position
to fully closed
position
Approx.
OV (Motor is running.)
Approx. 2V
Approx. OV OV
OV
Fully closed position
to tilt UP position
Approx.
12V
Approx. OV (Motor is running.)
Approx.
OV
Tilt UP position to
fully closed position
Approx.
OV (Motor is running.)
12'
Approx. 12V
Approx.
OV (Motor is running.)
ov
OV
Approx. OV
ov
OV
Approx. OV

AUTO LIGHT SYSTEM
Component
Parts Location Inside the meter
-4 Auto light control unit
Auto Light Control Unit InputlOutput Signal
Specifications
Terminal No. Measuring
condition
Operation or condition
I
Signal name Specification
Ignition switch
I Light is applied to the I Approx. 12V
liaht sensor.
Tail lamp relay control
signal
Speedometer is in operation. (Vehicle speed is
approximately 40
kmlh.)
Lighting switch: AUTO
Vehicle speed signal (2 pulses)
Light is applied to the
liaht
sensor.
I
4
Light is not applied to
the light sensor.
Approx. OV
Approx.
OV
Navigation screen
dimming signal Liahtina
switch: 1 ST
- I I
I
Light is not applied to
the light sensor.
ignition power supply Approx. 12V
I - I
I Light
is applied to the I Approx. 12V
liaht sensor. Approx. 12V
Headlamp
relay con-
trol signal Lighting
switch: AUTO
Lighting switch AUTO
signal Lighting switch
ACC -
Light is not applied to
the light sensor.
Ground Approx.
OV
OFF
AUTO Approx. 12V
Approx. OV
Driver door switch sig-
n
al
ACC Approx.
OV
Approx.
OV
Approx. 12V
-
ACC power supply Driver
door switch
ACC ON
(Open)
OFF (Closed)
- I Approx. 12V

AUTO LIGHT SYSTEM
Circuit Diagram
Xenon
headlamp
relay
To clearance
lamp and
tail lamp
I---- I : High-voltage parts ----- EL-2163D
Trouble Diagnoses
SYMPTOM CHART
Symptom I Possible cause
I a Faulty auto light control unit power supply or ground harnesi
I Faulty auto light control unit
When outside
is dark, neither small lamps nor headlamps
tum
ON
by
auto light operation. [Lighting switch
(1ST
and 2ND)
is normal.]
When outside is dark, small lamps turn ON but headlamps do not turn
Faulty lighting switch to auto light control unit harness
ON by auto light operation. [Lighting switch (1 ST and 2ND) is normal.] Faulty auto light control unit
0 Faulty lighting switch Faulty lighting switch to auto light control unit harness a Faulty lighting switch ground harness
When outside is dark, headlamps turn ON but small lamps do not turn
ON by auto light operation. [Lighting switch
(1ST
and 2ND) is normal.]
Faulty lighting switch to auto light control unit hamess Faulty auto light control unit
a Neither headlamps nor small lamps turn OFF when the driver door is
opened with the ignition switch at ACC. a Headlamps and small lamps turn OFF when the ignition switch is
turned to ACC with the driver door closed.
0 While the vehicle is driven at night, headlamps go off momentarily
~~- - - pp a Faulty door switch a Faulty door switch to auto light control unit harness a Faulty door switch ground harness 0 Faulty auto light control unit
when it passes under street lamps.
0 While the vehicle is driven in the early morning or evening, headlamps
turn ON momentarily when it passes under an overpass or through a Faulty speedometer to auto light control unit harness a Faulty auto light control unit
building shadows.
During the day, neither small lamps nor headlamps turn OFF. During the day, headlamps tum OFF but small lamps do not turn OFF. a Faulty auto light control unit

XENON HEADLAMP SYSTEM
Trouble Diagnoses
DESCRIPTION
Problems with xenon headlamps are as follows:
They do not light up.
They blink.
GD
They are not bright enough.
In most cases the problems above are caused by faulty xenon bulbs.
There might be the possibility that the problems are caused by faulty HID control unit or lamp sockets.
ec
Follow the diagnostic procedure to determine what causes the problem.
PRECAUTIONS AT
Connect or disconnect connectors with the lighting switch OFF.
Do not touch harnesses, HID control unit, internal lamp, or metal part of the lamp while the lamps are
ON B2
(Lighting switch is ON).
Before verifying that the lamps are ON, install the parts to the vehicle temporarily and connect the battery
cable with
the connector on the vehicle. ST
If the electrical system is suspected to be the cause of the symptom, check for blown fuse or fusible link,
broken connectors, disconnected terminals, or faulty engagement.
Do not use wet hands when performing the trouble diagnoses.
F@
CIRCUIT DIAGRAM
, MA Xenon
headlamp
relay
To clearance
JJ$Rkj
lamp and
tail lamp
Headlamp
1 -- - -1 : High-voltage parts
Driver door SM
CAUTION:
0 Do not use a tester to diagnose the HID control unit circuit.
0 Do not disassemble the HID control unit and harnesses (bulb socket harness and control unit har-
ness).
0 Immediately after the headlamps turn ON, brightness and emission color vary. This is a normal
condition.
When a bulb has reached the end of its life, the brightness becomes extremely low, the bulb con-
tinues to blink, or the light looks reddish.