1998 NISSAN GT-R warning light

COMBINATION METER
System Description
Speedometer, tachometer, odoltrip meter, fuel gauge, and
water temperature gauge are integrally controlled by the con-
trol circuit in the meter control unit.
Diagnosis function has odoltrip meter segment check, low fuel @
warning lamp check, and continuity check in the meter control
circuit and the meters (speedometer, tachometer, fuel gauge,
and water temperature gauge).
Component Parts Location
Combination meter ABS unit
ID Transfer (4WD) I H side of trunk room
I -unit connector I
/I Diagnosis Function
meter is displayed, turn the ignition switch ACC or
down the odoltrip meter switch, turn the ignition switch
/
ON.
3. Verify that 0000.0 km is displayed on the trip meter.
4. Press the odoltrip meter switch 3 times within 5 seconds.
5. All the odoltrip meter segments light up along with low fuel
warning lamp.
EL-21
SEGMENT CHECK AND LOW FUEL WARNING LAMP
CHECK

COMBINATION METER
Trouble
Diagnoses
DIAGNOSTIC PROCEDURE
I YES
Meter control unit is faulty.
Meter battery or ignition power supply is faulty.
DO
warning
lamps
on
the
meter light
up?
. No .
at the low fuel warning lamp check? The bulb
is faulty.
t
Meter control unit is faulty. I
Does the liquid crystal display operate properly at the segment check? NO
Check the attaching screw for the ' NG *F3epair malfunct~oning part and
the meter circuit check? meter that
does not operate properly. * conduct the meter circuit check again.
OK
Meter control unit is faulty.
YES
DIAGNOSIS RESULT 1
4
Symptom I Check item I Malfunctioning item
Go
to "DIAGNOSIS RESULT
1".
Low fuel warning lamp does not operate
properly. Go to
"DIAGNOSIS RESULT
2".
Any of tachometer, fuel gauge, and water
temperature gauge does not operate prop-
erly.
More than one meter out of tachometer, fuel
gauge, and water temperature gauge do not
operate properly.
Speedometer and
odohrip meter do not
operate properly. Sensor
or harness for the meter that does
Sensor circuit for the meter (warning lamp)
1 1: 1 not operate properiy
1 that does not operate properly
~ Meter control unit
Meter control unit
DIAGNOSIS RESULT 2
Symptom
Any of speedometer, tachometer, fuel gauge,
and water temperature gauge does not oper-
ate properly. Vehicle
speed sensor or harness
Meter control unit
-
Vehicle speed input signal (with TCS)
Check item
I Malfunctioning item
NG
OK
Perform "VEHICLE SPEED INPUT SIGNAL
DIAGNO-
SIS"
on the next page. (without TCS)
More than one meter out of speedometer,
tachometer, fuel gauge, and water tempera-
ture gauge
do not operate properly. Resistance
of the meter that does not
operate properly
Meter control unit
NG
OK
- -
Meter that does not operate properly
Meter control unit

IGNITION KEY WARNING BUZZER AND LIGHT WARNING BUZZER
I Behind combination meter
Meter control unit Component Parts Location
J
Circuit Diagram
Meter Control Unit
InputlOutput Signal
Specifications
Terminal No.
Driver door switch signal
Signal
name
OFF Measuring condition
Ignition switch
I Measuring method Specification
Driver door switch
29
ON (Open)
OFF (Closed)
42
Approx. OV
Approx. 12V
Ignition power supply
54
55
Key-in detection switch
signal 1 OFF
ON
Lighting switch signal
Ground Approx. 12V
Remove
the ignition key.
Insert the ignition key. Approx. OV
Approx. 12V
Approx. 12V
Approx. OV
Approx. OV
I
OFF
ON Lighting
switch: 1 ST ON
OFF
-