window NISSAN GT-R 1998 Service Manual

FULLY AUTOMATIC AIR CONDITIONER
Performance Test
PROCEDURE
Connect the manifold gauge to the vehicle side cooler cycle (service valve).
Attach a psychrometer to the recirculation air inlet port of the blower and cooling unit (below the glove box);
and attach a dry-bulb thermometer to the right side of the center ventilator grille.
Start and
warm up the engine.
After warming up the engine, check that the engine speed has reached the standard idle speed.
After pressing the AUTO switch, operate the fan switch, mode switch (air outlet switch),
REG switch, tem-
perature adjustment dial and switch; and satisfy the following conditions.
Fan speed: 4th
Air inlet: Recirculation
Air outlet: Ventilator (VENT)
Temperature setting:
18°C
Completely open the hood and all door windows, and close all doors.
Maintain these conditions until the cooler cycle stabilizes. (Approx.
10 minutes)
Maintain the engine speed at idle.
Measure the recirculation inlet temperature and humidity, outlet temperature, and cooler cycle high- and
low-pressures. Compare and judge the values with the "AMBIENT AIR TEMPERATURE AND PRESSURE
CHARACTERISTICS and "INTAKE AIR TEMPERATURE AND DISCHARGE AIR TEMPERATURE CHAR-
ACTERISTICS.

ELECTRICAL SYSTEM
SECTION EL
CONTENTS
CENTRAL DOOR LOCK SYSTEM ................................. 2
Component Parts Location .......................................... 2
Circuit Diagram ............................................................ 2
Combination Meter (meter control unit) Input/
Output Signal Specifications
........................................ 2
Inspection before Trouble Diagnoses ......................... -3
Trouble Diagnoses ....................................................... 3
REMOTE CONTROL ENTRY SYSTEM .......................... 4
Component Parts Location .......................................... 4
Circuit Diagram ............................................................ 4
Remote Control Entry Control Unit Input/Output
Signal Specifications
.................................................... 5
System Check ............................................................. -5
Inspection before Trouble Diagnoses .......................... 6
Trouble Diagnoses ....................................................... 6
Component Parts inspection ....................................... 6
ID Code Entry Procedure ............................................ 7
POWER WINDOW SYSTEM ........................................... 8
System Description ..................................................... -8
Precautions ................................................................. -8
Component Parts Location .......................................... 8
Circuit Diagram ............................................................ 9
Power Window Main Switch Input/Output Signal
Specifications
............................................................... 9
Inspection before Trouble Diagnoses ........................ 11
Trouble Diagnoses .................................................... 11
SUNROOF SYSTEM ...................................................... 12
Component Parts Location ........................................ 12
Circuit Diagram .......................................................... 12
Sunroof Switch and Sunroof Motor Assembly
lnputiOutput Signal Specifications
............................. 12
AUTO LIGHT SYSTEM ................................................. 1 3
Component Parts Location ........................................ 13
Auto Light Control Unit Input/Output Signal
Specifications
............................................................. 13
Circuit Diagram ........................................................ 14
Trouble Diagnoses .................................................. I 4
..................................... XENON HEADLAMP SYSTEM 15
Trouble Diagnoses ..................................................... 15
IGNITION KEY-OPERATED ILLUMINATION
SYSTEM
................................................................... 7
Component Parts Location ........................................ 17
.......................................................... Circuit Diagram 17
Meter Control Unit InputlOutput Signal
....................................................... Specifications 1 7
METER ........................................................................\
18
Corn bination Meter .................................................... 18
Triple Meter ................................................................ 20
................................................ COMBINATION METER 21
.................................................... System Description 21
........................................ Component Parts Location 21
Diagnosis Function .................................................... 21
................................... Meter-related Circuit Diagram 22
..................................................... Trouble Diagnoses 23
Combination Meter InpuVOutput Signal
Specifications
............................................................ -25
..................................... Component Parts Inspection 26
TRIPLE METER ............................................................. 29
Special Service Tool ................................................... 29
........................................ Component Parts Location 29
Circuit Diagram .......................................................... 29
Triple Meter InputfOutput Signal Specifications ........ 30
Component Parts Inspection ..................................... 30
IGNITION KEY WARNING BUZZER AND LIGHT
WARNING BUZZER
...................................................... 31
Component Parts Location ........................................ 31
Circuit Diagram .......................................................... 31
Meter Control Unit InpuVOutput Signal
Specifications
............................................................. 31
FRONT WIPER .............................................................. 32
Component Parts Location ........................................ 32
Circuit Diagram .......................................................... 32
Front Wiper Input/Output Signal Specifications ........ 32

CENTRAL DOOR LOCK SYSTEM
Symptom
Passenger door lock and rear
RH & LH door locks do not lock or unlock with the
central door lock switch.
Passenger door lock, rear
RH door lock,
or rear LH dooc lock do not lock or unlock
with the central door lock switch.
Passenger door lock and rear
RH & LH door locks do not lock or unlock with the
driver door lock knob. (They operate
properly with the central door lock switch.)
Inspection before Trouble Diagnoses
Check that components connectors are properly connected.
Trouble Diagnoses
SYMPTOM CHART
Malfunctioning item
Door lock relay circuit Possible
cause E8G Faulty power window main switch (central door lock switch)
Power window main switch circuit
Faulty door lock relay
Faulty door lock relay to combination meter (meter control unit)
BR harness
0 Faulty power window main switch (central door lock switch) to
combination meter (meter control unit) harness
Faulty power window main switch (central door lock switch) ground
circuit
I Faulty door lock relay to door lock actuator harness
Door lock actuator circuit
Combination meter
(meter control unit)
0 Faulty door lock actuator Faulty door lock actuator to door lock relay harness
0 Faulty combination meter (meter control unit) ST
Driver door lock switch circuit
0 Faulty driver door lock switch . Faulty driver door lock switch to combination meter (meter control
unit) harness
Combination meter (meter control unit)
Faulty driver door lock switch ground circuit
Faulty combination meter (meter control unit) m

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)