2007 NISSAN 350Z sensor

COMBINATION METERS
DI-23
C
D
E
F
G
H
I
J
L
MA
B
DI
Revision: 2006 November2007 350Z
Electrical Components InspectionNKS0006C
FUEL LEVEL SENSOR UNIT
For removal, refer to FL-4, "FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY" .
Fuel Level Sensor Unit and Fuel Pump (Main)
Check the resistance between terminals 2 and 5.
*1 and *2: When float rod is in contact with stopper.

If the results of check are NG, check the fuel level sensor unit
and fuel pump (main) harness. Refer to DI-23, "
Fuel Level Sen-
sor Unit and Pump (Main) Harness" .
Fuel Level Sensor Unit and Pump (Main) Harness
Check the continuity between the following terminals.

If the results of check are NG, replace fuel pump assembly. If the
results of check are OK, replace fuel level sensor unit.
Fuel Level Sensor Unit (Sub)
Check the resistance between terminals 1 and 2.
*1 and *2: When float rod is in contact with stopper.Terminal Float position [mm (in)] Resistance value [Ω]
25*1 Empty 30 (1.18) Approx. 80
*2 Full 210 (8.27) Approx. 3
SKIB1307E
Terminal Continuity
2 - Signal terminal
Ye s
5 - Ground terminal
SKIA3582E
Terminal Float position [mm (in)] Resistance value [Ω]
12*1 Full 8 (0.31) Approx. 3
*2 Empty 175 (6.89) Approx. 43
SKIB1308E

DI-26
TRIPLE METERS
Revision: 2006 November2007 350Z
TRIPLE METERSPFP:24845
System DescriptionNKS0006F
TRIPLE METER

Oil pressure gauge and voltmeter are controlled by the triple
meter.

Trip computer is controlled by the signals from the unified meter
and A/C amp.

Triple meter operation can be checked with self-diagnosis mode
of combination meter.
UNIFIED METER AND A/C AMP.
Refer to DI-45, "TRIPLE METER CONTROL FUNCTION" in “UNIFIED METER AND A/C AMP”.
POWER SUPPLY AND GROUND CIRCUIT
Power is supplied at all times

through 10A fuse [No. 19, located in the fuse block (J/B)]

to triple meter terminal 2.
With the ignition switch in the ON or START position, power is supplied

through 10A fuse [No. 14, located in the fuse block (J/B)]

to triple meter terminal 3.
Ground is supplied

to triple meter terminal 1

through grounds M30 and M66.
VOLTMETER
When ignition switch is turned to the ON position, the voltmeter indicates the battery voltage.
OIL PRESSURE GAUGE
With the ignition switch in the ON or START position, power is supplied

through triple meter terminal 9

to oil pressure sensor terminal 1.
Ground is supplied

to triple meter terminal 7

through oil pressure sensor terminal 3.
And triple meter reads oil pressure signal from oil pressure sensor

from oil pressure sensor terminal 2

to triple meter terminal 8.
NOTE:

Triple meter judges an oil pressure condition by oil pressure signal, and transmits oil pressure warning
lamp signal to combination meter through unified meter and A/C amp. with communication line.

Oil pressure gauge is not designed to indicate the low oil level. Use the oil level gauge to check the oil
level.
SKIA7097E

TRIPLE METERS
DI-27
C
D
E
F
G
H
I
J
L
MA
B
DI
Revision: 2006 November2007 350Z
TRIP COMPUTER
Function
When the ignition switch is turned ON, the display scrolls all the modes. And then shows the mode chosen
before the ignition switch is turned OFF.

Trip computer is operated by the trip computer switch.

Trip computer receives a switch signal from combination meter
through the unified meter and A/C amp. with communication
line.
The mode of the trip computer is the following.

Vehicle speed

Ambient air temperature

DTE (distance to empty)

Average fuel consumption

Average vehicle speed

Trip time

Trip distance

St op watc h

Shift-up indicator setting mode
How to Change/ Reset the Displayed Mode

The displayed mode can be selected in the following order by momentarily pressing the trip computer
mode switch.
–Vehicle speed → Ambient air temperature → DTE → Average fuel consumption and average vehicle
speed → Trip time and trip distance → Stopwatch → Shift-up indicator setting

Holding the trip computer setting switch for more than 1 second resets the displayed mode (Average fuel
consumption, average vehicle speed, trip time, trip distance or stopwatch).
NOTE:
When the ambient air temperature warning, the tire pressure warning, and the DTE warning, match warning
conditions at the same time, the display automatically displays the ambient air temperature warning.
Vehicle Speed

Trip computer receives vehicle speed signal from combination meter through the unified meter and A/C
amp. with communication line.

Trip computer displays the vehicle speed according to vehicle speed signal.
Ambient Air Temperature

Unified meter and A/C amp. reads ambient air temperature signal from ambient air temperature sensor.
Signal is supplied
–from unified meter and A/C amp. terminal 39
–through ambient sensor terminal 1 and 2
–to unified meter and A/C amp. terminal 49.

Trip computer receives ambient air temperature signal from the unified meter and A/C amp. with commu-
nication line.

Trip computer displays ambient air temperature according to ambient air temperature signal.
NOTE:

Indication range is between −30 and 55 °C (−22 and 131 °F).

When ambient air temperature is less than −30 °C (−22 °F) or more than 55 °C (131 °F), the display
shows “--”.

When ambient air temperature is less than 3 °C (37 °F) continuously, the display shows “ICY” as warning.
At more than 4 °C (39 °F) the display stops showing “ICY”.
PKIA2098E

DI-28
TRIPLE METERS
Revision: 2006 November2007 350Z
DTE (Distance to Empty)

Unified meter and A/C amp. uses following signals to calculate the DTE signal.
–Fuel remaining signal (from the fuel level sensor unit)
–Fuel consumption signal (from ECM)
–Vehicle speed signal [from VDC/TCS/ABS control unit or ABS actuator and electric unit (control unit)]

Trip computer receives DTE signal from the unified meter and A/C amp. with communication line.

Trip computer displays the DTE according to DTE signal.

The indication is refreshed every 30 seconds.
NOTE:

When fuel remaining is less than approx. 10 (10-5/8 US qt, 8-3/4 Imp qt), the display shows “dte” blink
as a warning. And the fuel remaining is less than approx. 8 (8-1/2 US qt, 7 Imp qt), the display shows “-
---”.

When the battery cable is disconnected and reconnected, the display shows “----” for 30 seconds.
Average Fuel Consumption

Unified meter and A/C amp. uses following signals to calculate the average fuel consumption signal.
–Fuel consumption signal (from ECM)
–Vehicle speed signal [from VDC/TCS/ABS control unit or ABS actuator and electric unit (control unit)]

Trip computer receives the average fuel consumption signal from the unified meter and A/C amp. with
communication line.

Trip computer displays the average fuel consumption according to the average fuel consumption signal.

The indication is refreshed every 30 seconds.
NOTE:
If the average fuel consumption is reset, the average vehicle speed is reset at the same time. While driving
about 1/3 miles (500 m) or for 80 seconds after resetting, the display shows “----”.
Average Vehicle Speed

Unified meter and A/C amp. uses following signals to calculate the average vehicle speed signal.
–Trip distance signal
–Trip time signal

Trip computer receives the average vehicle speed signal from the unified meter and A/C amp. with com-
munication line.

Trip computer displays the average vehicle speed according the average vehicle speed signal.

The indication shows refreshed every 30 seconds.
NOTE:
If the average vehicle speed is reset, the average fuel consumption will be reset at the same time. After reset-
ting, the display will show “----” for 30 seconds.
Trip Time

Unified meter and A/C amp. calculates the time during ignition switch ON.

Trip computer receives the trip time signal from the unified meter and A/C amp. with communication line.

Trip computer displays trip time according to the trip time signal.
NOTE:
If trip time is reset, trip distance is reset at the same time.
Trip Distance

Unified meter and A/C amp. uses following signals to calculate the average fuel consumption signal.
–Trip time signal
–Vehicle speed signal from VDC/TCS/ABS control unit or ABS actuator and electric unit (control unit)

Trip computer receives the trip distance signal from the unified meter and A/C amp. with communication
line.

Trip computer displays the trip distance according to the trip distance signal.
NOTE:
If trip distance is reset, trip time will be reset at the same time.

TRIPLE METERS
DI-35
C
D
E
F
G
H
I
J
L
MA
B
DI
Revision: 2006 November2007 350Z
Terminals and Reference Value for Triple MeterNKS0006I
Terminal
No.Wire
colorItemMeasuring condition
Reference value
(Approx.) Ignition
switchOperation or condition
1 B Ground ON — 0 V
2 R/W Battery power supply OFF — Battery voltage
3 G/Y Ignition power supply ON — Battery voltage
4PTX communication line
(To unified meter and A/C amp.)ON —
5L/BRX communication line
(From unified meter and A/C amp.)ON —
7 G/OR Oil pressure sensor ground ON — 0 V
8 LG/R Oil pressure sensor signal ONWhen ignition switch is in ON
position (Engine stopped.)1 V
Engine running [When the oil
pressure is 80 psi (500 kPa)]3 V
9 R/L Oil pressure sensor power supply ON — 5 V
12 R Illumination signal input ONLighting switch ON, then
operate the illumination con-
trol switch. When brightness level is
midway
Lighting switch OFF 0 V
SKIA3364E
SKIA3363E
SKIA7256E

DI-36
TRIPLE METERS
Revision: 2006 November2007 350Z
Terminals and Reference Value for Unified Meter and A/C Amp.NKS0006K
Te r m i n a l
No.Wire
colorItemMeasuring condition
Reference value
(Approx.) Ignition
switchOperation or condition
1 L CAN-H — — —
9L/ORTX communication line
(To combination meter)ON —
10 L/BTX communication line
(To triple meter)ON —
11 P C A N - L — — —
19 R/GRX communication line
(From combination meter)ON —
20 PRX communication line
(From triple meter)ON —
21 R/W Battery power supply OFF — Battery voltage
22 Y/G Ignition power supply ON — Battery voltage
26 WVehicle speed signal output
(8-pulse)ONSpeedometer operated.
[When vehicle speed is
approx. 40 km/h (25 MPH)]NOTE:
Maximum voltage may be 5 V due
to specifications (connected units).
28 W/B Fuel level sensor signal — —Refer to DI-23, "
FUEL LEVEL SEN-
SOR UNIT" .
29 B Ground (For power) ON — 0 V
30 B Ground ON — 0 V
36 R/B Fuel level sensor ground ON — 0 V
39 Y Ambient sensor signal — —Refer to AT C - 9 2 , "
Ambient Sensor
Circuit" .
SKIA3362E
SKIA3363E
SKIA3361E
SKIA3364E
PKIA1935E

TRIPLE METERS
DI-37
C
D
E
F
G
H
I
J
L
MA
B
DI
Revision: 2006 November2007 350Z
Terminals and Reference Value for Combination MeterNKS0006J
46 L/W ACC power supply ACC — Battery voltage
49 W/L Ambient sensor ground ON — Approx. 0 V Terminal
No.Wire
colorItemMeasuring condition
Reference value
(Approx.) Ignition
switchOperation or condition
Terminal
No.Wire
colorItemMeasuring condition
Reference value
(Approx.) Ignition
switchOperation or condition
10
B Ground ON — 0 V 11
12
19 R Illumination signal output ONLighting switch ON, then
operate the illumination con-
trol switch. When brightness level is
midway
Lighting switch OFF 0 V
20 WVehicle speed signal input
(8-pulse)ONSpeedometer operated.
[When vehicle speed is
approx. 40 km/h (25 MPH)]NOTE:
Maximum voltage may be 5 V
due to specifications (connected
units).
21 R/GTX communication line
(To unified meter and A/C amp.)ON —
22 L/ORRX communication line
(From unified meter and A/C amp.)ON —
23 G/Y Ignition power supply ON — Battery voltage
24 R/W Battery power supply OFF — Battery voltage
SKIA7256E
PKIA1935E
SKIA3361E
SKIA3362E

TRIPLE METERS
DI-39
C
D
E
F
G
H
I
J
L
MA
B
DI
Revision: 2006 November2007 350Z
Trouble DiagnosisNKS0006N
HOW TO PERFORM TROUBLE DIAGNOSIS
1. Confirm the symptom or customer complaint.
2. Perform diagnosis according to diagnosis flow. Refer to DI-39, "
PRELIMINARY CHECK" .
3. According to the symptom chart, repair or replace the cause of the symptom.
4. Does the meter operate normally? If so, GO TO 5. If not, GO TO 2.
5. INSPECTION END
PRELIMINARY CHECK
1. CHECK COMMUNICATION LINE
Perform self-diagnosis of unified meter and A/C amp.
Self-diagnostic results content
No malfunction detected>>GO TO 2.
Malfunction detected>>Check applicable parts, and repair or replace corresponding parts.
2. CHECK OPERATION OF SELF-DIAGNOSIS MODE (COMBINATION METER)
Activate self-diagnosis mode of combination meter. Refer to DI-15, "
Self-Diagnosis Mode of Combination
Meter" .
Does self-diagnosis mode operate?
YES >> GO TO 3.
NO >> Check combination meter power supply and ground circuit. If normal, replace combination meter.
3. CHECK OPERATION OF SELF-DIAGNOSIS MODE (TRIPLE METER)
Check operation of triple meter in self-diagnosis mode. Refer to DI-38, "
Self-Diagnosis Mode of Triple Meter" .
Does self-diagnosis mode operation namely?
YES >> INSPECTION END
NO >> GO TO 4.
4. CHECK POWER SUPPLY AND GROUND CIRCUIT OF TRIPLE METER
Check power supply and ground circuit of triple meter.
OK or NG
OK >> Replace triple meter.
NG >> Repair power supply and ground circuit of triple meter.
Symptom ChartNKS0006O
Trouble phenomenon Possible cause
Speed indication is not displayed properly. Refer to DI-40, "
Vehicle Speed Signal Inspection" .
Ambient air temperature indication is not displayed properly.
(It may take a short time to steady the indication after ignition
switch is turned ON.)
NOTE:
If the meter is powered up with the ambient sensor disconnected,
ambient air temperature display will show “---” even if the sensor is
reconnected. In this case, with the sensor connected, disconnect
and reconnect the battery, then the correct temperature will be dis-
played.Refer to ATC-92, "
AMBIENT TEMPERATURE INPUT PRO-
CESS" in “ATC”.
DTE (distance to empty) indication is not displayed properly.
Refer to DI-40, "
Fuel Consumption Monitor Signal Inspection" .
Average fuel consumption indication is not displayed properly.
Shift-up indicator setting indication is not displayed properly or
shift-up indicator does not operate properly.Refer to DI-42, "
Trip Computer Switch Inspection" .