1998 NISSAN GT-R battery

FULLY AUTOMATIC AIR CONDITIONER
Automatic Amplifier Input /Output Signal
Specifications
Measurement condition I Terminal
No. Specification
v Signal
name
Ignition
I Operation or condition
switch
OFF
I - I Approx. 12
Battery
power source
Ignition power source
lllumination
ON
I - I Approx. 12
- I Lighting switch: 1 step 1 Approx. 12
ON r Lighting switch: 1 step I Approx. o
6 1 Rear defogger ON output signal Rear
defogger switch: ON
Rear defogger switch: OFF 1
Approx. 0
Approx.
5
Rear defogger switch: ON
Rear defogger switch: OFF
1
7
Approx. 12
Approx. 0
Thermal transmitter 8 1 Rear defogger
display input signal
Compressor: ON
Compressor:
OFF
Approx. 0
Approx.
5 Compressor ON signal
ON
-I-- - - - I Approx. 0 10 1 Ground
AfP display output signal (only
when connected) Blower
fan motor: ON
Blower fan motor:
OFF
Approx. 0
Approx.
5
12 1 Actuator driver power source
ON I - 1 Approx. 12
1 3 1 ACC power source ACC I - I Approx. 12
Right after temperature adjustment
dial operation
Air mix
door actuator driver signal
Fan control signal
Fan speed: Manual
1st
ON I - I Approx. 0
21
': Refer to "Component
Parts Inspectionn.
Sensor ground

REMOTE CONTROL ENTRY SYSTEM
Remote Control Entry Control Unit
Terminal No.
InputIOutput Signal specifications
Signal name Operation or cond~t~on Specificatton
Close the driver door. (OFF) Approx.
12V Driver door
switch input signal . @ Open the driver door. (ON) Approx. OV
Close
all the doors. (OFF) Approx. 12V All door
switch input signal Ec Open one of the doors. (ON) Approx. OV
Driver door
lock actuator lock
output signal Lock with the remote control. Changes from
approx. 0 to 12V and back to approx. OV. t
Ground - Approx. OV BR Locked (OFF) Approx. 5V Driver door lock switch signal
Unlocked (ON) Approx. OV
Key-in detection switch input Insert (ON) Approx. 12V 87
signal
Ignition key Remove (OFF)
Approx. OV
ACC power supply Ignition switch to ACC Approx. 12V Rs
Passenger door and rear RH & Press the lock switch on the remote control. Changes
from approx. 5 to OV LH door lock output signal
and back to approx. 5V.
Passenger door and rear RH & Changes from approx. 5 to OV HA
LH door unlock output signal Press the unlock switch
on the remote control.
and back to approx. 5V.
Driver door lock actuator
Unlock with the remote control. Changes from approx. 0 to
unlock output signal 12V and back to approx. OV.
System Check
Easy way to confirm the func+ion of the remote control: Works
properly.
Program the remote control (A) to another vehicle
of the
same type and check if the remote control works properly. Does not work. is OK.
Turn
a radio ON. Touch the radio aerial with the remote
control (A). Press a switch on the remote control with . is heard.
the
remote
control on the aerial. Listen for noise.
(Radio frequency: around
78.6, 78.7, 78.8 MHz)
B f ' Works properly.
I
Program another remote control (6) to the vehicle
concerned and check if the remote control works properly. No noise
is heard. t The vehicle is OK.
Does not work.
Check item
Operation check
Remote control
(A) is OK. Remote control (A)
is
NG.
r The vehicle is NG. 0CC3078D
I
I System check A
Remote control
(A) is OK.
Remote control (A) is
NG.
System check B
The vehicle is OK.
Remote control (A) is NG. Program the remote control
(A) to the vehicle concerned again and check
for proper operation.
The vehicle is NG.
The vehicle is OK. Perform trouble diagnosis
to determine what causes the problem.
Check the remote control
(A) battery voltage.
The vehicle is NG. Check the
remote control (A) battery voltage and then perform trouble
diag- nosis to determine what causes the problem.

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.

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

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.

XENON HEADLAMP SYSTEM
Trouble Diagnoses (Cont'd)
DIAGNOSTIC PROCEDURE
I
FUSE, FUSIBLE LINK, AND XENON Fuse, fusible link, or xenon
HEADLAMP RELAY CHECK headlamp relay is faulty.
CONNECTOR CHECK ON THE VEHICLE Harness on the vehicle is
FOR BATTERY VOLTAGE faulty.
With lighting switch ON, check HID control
unit connector on the vehicle for battery
I voltage. I
OK
XENON HEADLAMP BULB REPLACE- Xenon bulb is faulty.
MENT
Replace the xenon headiamp bulb with a
known
good bulb and check for proper
operation.
HID CONTROL UNIT REPLACEMENT HID control unit is faulty.
Install a known good
HID control unit to
I
the xenon headlarnp and check for proper
operation.
NG
XENON HEADLAMP HOUSING ASSEM- OK, BLY REPLACEMENT
Install a known good xenon headlamp
housing assembly to the xenon
headlamp
and check for proper operation.
---
Starter in xenon headlamp
housing (boost circuit) is
faulty. (Xenon
headlamp housing
assembly
is faulty.)

IGNITION KEY-OPERATED ILLUMINATION SYSTEM
Behind combination meter Component Parts Location
Meter control unit
Circuit Diagram
7, . .
& Driver door lock detection switch
T
2 1 r Passenger door SW Rear RH door SW 326
' a
Rear LH door SW
3 - -
Room lamp
IGN SW illumination
TK24 (Brown) TK20 (Brown) TK20 (White) EL-2 178D I 1 J
Meter Control Unit Input/Output Signal
Terminal No.
Specifications I I
Specification
Approx.
OV
Approx. 12V
Approx. OV
Approx. 5V
Approx. 12V
Approx. OV
Approx. 12V
Approx. 12V
Approx. OV
Approx. 12V
Approx. OV
Approx. OV
Approx. 12V
Approx. OV'
Approx. 12V
Measuring condition
Signal name Ignition
Operation or condition
switch
Driver door switch ON (Open)
OFF Driver door switch
signal OFF (Closed)
Driver door lock
sig-
Door is unlocked. (Switch ON)
nal OFF
Door is locked. (Switch OFF)
Battery OFF
-
Open a door. (ON)
Door switch signal
OFF
Close all the doors. (OFF)
Ignition power supply ON
-
Key-in detection Remove
the ignition key.
switch signal OFF
Insert the ignition key.
Ground ON
-
OFF Room lamp switch:
Insert the ignition key. Each door switch
Room lamp, ignition Neutral position ON
(Open)
OFF (Closed)
switch illumination
Remove the ignition key from the
signal
- lamp switch: Close all the doors. key cylinder.
Neutral position
Turn the ignition switch ON.