2007 NISSAN 350Z oil pressure

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DRIVER INFORMATION SYSTEM
K ELECTRICAL
CONTENTS
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Revision: 2006 November2007 350Z
DRIVER INFORMATION SYSTEM
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .................................................................. 3
Precautions for Battery Service ................................ 3
COMBINATION METERS ........................................... 4
System Description .................................................. 4
UNIFIED METER CONTROL UNIT ...................... 4
UNIFIED METER AND A/C AMP. ......................... 4
POWER SUPPLY AND GROUND CIRCUIT ........ 4
SPEEDOMETER ................................................... 4
TACHOMETER ..................................................... 5
WATER TEMPERATURE GAUGE ........................ 5
FUEL GAUGE ....................................................... 5
ODO/TRIP METER ............................................... 5
ILLUMINATION CONTROL ................................... 6
SHIFT-UP INDICATOR ......................................... 7
FAIL-SAFE ............................................................ 7
Component Parts and Harness Connector Location ..... 8
Arrangement of Combination Meter ......................... 9
Schematic .............................................................. 10
Wiring Diagram — METER — ................................. 11
Terminals and Reference Value for Combination
Meter ...................................................................... 13
Terminals and Reference Value for Unified Meter
and A/C Amp. ......................................................... 14
Self-Diagnosis Mode of Combination Meter ........... 15
SELF-DIAGNOSIS FUNCTION .......................... 15
OPERATION PROCEDURE ............................... 15
CONSULT-III Function (METER A/C AMP) ............ 15
Trouble Diagnosis .................................................. 16
HOW TO PERFORM TROUBLE DIAGNOSIS ... 16
PRELIMINARY CHECK ...................................... 16
Symptom Chart ...................................................... 16
Power Supply and Ground Circuit Inspection ........ 17
Vehicle Speed Signal Inspection ............................ 18
Engine Speed Signal Inspection ............................ 19
Engine Coolant Temperature Signal Inspection ..... 19
Fuel Level Sensor Signal Inspection ...................... 19
Illumination Control Switch Inspection ................... 21Fuel Gauge Pointer Fluctuates, Indicator Wrong
Value or Varies ....................................................... 22
Fuel Gauge Does Not Move to FULL Position ....... 22
Electrical Components Inspection .......................... 23
FUEL LEVEL SENSOR UNIT ............................. 23
Removal and Installation for Combination Meter .... 24
REMOVAL ........................................................... 24
INSTALLATION ................................................... 24
Disassembly and Assembly for Combination Meter ... 24
DISASSEMBLY ................................................... 24
ASSEMBLY ......................................................... 25
TRIPLE METERS ...................................................... 26
System Description ................................................. 26
TRIPLE METER .................................................. 26
UNIFIED METER AND A/C AMP. ........................ 26
POWER SUPPLY AND GROUND CIRCUIT ....... 26
VOLTMETER ....................................................... 26
OIL PRESSURE GAUGE .................................... 26
TRIP COMPUTER ............................................... 27
FAIL-SAFE .......................................................... 29
Schematic ............................................................... 30
Wiring Diagram — 3METER — .............................. 31
Terminals and Reference Value for Triple Meter .... 35
Terminals and Reference Value for Unified Meter
and A/C Amp. ......................................................... 36
Terminals and Reference Value for Combination
Meter ...................................................................... 37
Self-Diagnosis Mode of Triple Meter ...................... 38
SELF-DIAGNOSIS FUNCTION ........................... 38
OPERATION PROCEDURE ................................ 38
CONSULT-III Function (METER A/C AMP) ............ 38
Trouble Diagnosis ................................................... 39
HOW TO PERFORM TROUBLE DIAGNOSIS .... 39
PRELIMINARY CHECK ....................................... 39
Symptom Chart ....................................................... 39
Vehicle Speed Signal Inspection ............................ 40
Fuel Consumption Monitor Signal Inspection ......... 40
Oil Pressure Sensor Signal Inspection ................... 40
Trip Computer Switch Inspection ............................ 42
Removal and Installation of Triple Meters .............. 42

DI-2Revision: 2006 November2007 350Z REMOVAL ........................................................... 42
INSTALLATION .................................................... 42
Disassembly and Assembly for Triple Meters ......... 43
DISASSEMBLY ................................................... 43
ASSEMBLY ......................................................... 43
UNIFIED METER AND A/C AMP .............................. 44
System Description ................................................. 44
DESCRIPTION .................................................... 44
COMBINATION METER CONTROL FUNCTION ... 44
TRIPLE METER CONTROL FUNCTION ............ 45
A/C AUTO AMP. FUNCTION ............................... 45
OTHER FUNCTIONS .......................................... 45
Schematic ............................................................... 46
CONSULT-III Function (METER A/C AMP) ............ 47
SELF-DIAGNOSTIC RESULTS ........................... 47
DATA MONITOR .................................................. 47
Power Supply and Ground Circuit Inspection ......... 49
DTC [U1000] CAN Communication Circuit ............. 50
DTC [B2201] Triple Meter Communication Circuit ... 50
DTC [B2202] Meter Communication Circuit ............ 52
DTC [B2205] Vehicle Speed Circuit ........................ 55
Removal and Installation of Unified Meter and A/C
Amp. ....................................................................... 55
REMOVAL ........................................................... 55
INSTALLATION .................................................... 55
WARNING LAMPS .................................................... 56
System Description ................................................. 56
OIL PRESSURE WARNING LAMP ..................... 56
Schematic ............................................................... 57
Wiring Diagram — WARN — .................................. 58
CONSULT-III Function (METER A/C AMP) ............ 66
Oil Pressure Warning Lamp Stays Off (Ignition
Switch ON) or Stays On (Oil Pressure Is Normal) ... 66
A/T INDICATOR ........................................................ 67
System Description ................................................. 67
MANUAL MODE .................................................. 67
NOT MANUAL MODE ......................................... 67
Wiring Diagram — AT/IND — ................................. 68CONSULT-III Function (METER A/C AMP) ............ 70
A/T Indicator Is Malfunction .................................... 70
WARNING CHIME ..................................................... 71
System Description ................................................. 71
IGNITION KEY WARNING CHIME ...................... 71
LIGHT WARNING CHIME ................................... 71
SEAT BELT WARNING CHIME ........................... 72
Component Parts and Harness Connector Location ... 72
Schematic ............................................................... 73
Wiring Diagram — CHIME — ................................. 74
Terminals and Reference Value for BCM ................ 77
Terminals and Reference Value for Unified Meter
and A/C Amp. .......................................................... 81
Terminals and Reference Value for Combination
Meter ....................................................................... 81
CONSULT-III Function (METER A/C AMP) ............ 83
CONSULT-III Function (BCM) ................................. 83
DIAGNOSTIC ITEMS DESCRIPTION ................. 83
DATA MONITOR .................................................. 83
ACTIVE TEST ...................................................... 83
SELF-DIAGNOSTIC RESULTS ........................... 83
Trouble Diagnosis ................................................... 83
HOW TO PERFORM TROUBLE DIAGNOSIS .... 83
PRELIMINARY INSPECTION .............................. 84
Symptom Chart ....................................................... 84
Power Supply and Ground Circuit Inspection ......... 84
Meter Buzzer Circuit Inspection .............................. 85
Driver Side Door Switch Signal Inspection ............. 86
Key Switch Signal Inspection .................................. 87
Lighting Switch Signal Inspection ........................... 88
Seat Belt Buckle Switch (Driver Side) Signal Inspec-
tion .......................................................................... 88
Component Inspection ............................................ 90
DRIVER SIDE DOOR SWITCH ........................... 90
SEAT BELT BUCKLE SWITCH (DRIVER SIDE) ... 90
KEY SWITCH ....................................................... 90
CAN COMMUNICATION ........................................... 91
System Description ................................................. 91
CAN Communication Unit ....................................

COMBINATION METERS
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SHIFT-UP INDICATOR

Shift-up indicator can be used when shifting up at a constant
engine speed from any gear while driving. It becomes a guide
for shift-up timing.

Shift-up indicator flashes approximately 500 rpm before reach-
ing the engine speed set. It illuminates when reaching the
engine speed set.
Shift-up engine speed can be set by the shift-up indicator setting
mode on trip computer. Refer to DI-29, "
Shift-up Indicator Setting
Mode" .
NOTE:

There may be a time lag between the shift-up indicator illumina-
tion and the tachometer indication.

If the battery cable is disconnected, the set engine speed becomes 7,000 rpm.
FA I L - S A F E
Combination meter performs fail-safe operation when unified meter and A/C amp. communication is malunc-
tion.
PKIA2097E
Function Fail-safe operation
Speedometer Return to zero
Tachometer
Reset to zero Fuel gauge
Water temperature gauge
Illumination control Combination meter illumination Change to nighttime mode
Odo/trip meter Integrate in response to 8-pulse input
A/T indicator The display turns OFF
Meter buzzer The meter buzzer turns OFF
Warning lamp/indicator lampABS warning lamp
The lamp turns ON VDC OFF indicator lamp
TCS OFF indicator lamp
SLIP indicator lamp
Brake warning lamp
Tire pressure warning lamp
A/T CHECK lamp
The lamp turns OFF Oil pressure warning lamp
Door warning lamp
High beam indicator lamp
Turn signal indicator lamp
Malfunction indicator lamp
CRUISE indicator lamp
SET indicator lamp

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-35
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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-38
TRIPLE METERS
Revision: 2006 November2007 350Z
Self-Diagnosis Mode of Triple MeterNKS0006L
SELF-DIAGNOSIS FUNCTION
Triple meter operation can be checked with self-diagnosis mode of combination meter.
OPERATION PROCEDURE
1. While pressing the odo/trip meter switch, turn ignition switch ON.
2. Make sure that the trip meter displays “0000.0”.
3. Press the odo/trip meter switch at least 3 times (within 7 seconds after the ignition switch is turned ON).
4. All the segments on the trip computer illuminate. At this time, the triple meter is turned to self-diagnosis
mode.
NOTE:
If any of the segments is not displayed, replace triple meter.
5. Press the odo/trip meter switch. voltmeter and oil pressure
gauge should indicate as shown in the figure while pressing odo/
trip meter switch.
NOTE:
If voltmeter or oil pressure gauge is not activated, replace triple
meter.
CONSULT-III Function (METER A/C AMP)NKS0006M
Refer to DI-47, "CONSULT-III Function (METER A/C AMP)" in “UNIFIED METER AND A/C AMP”.
SKIA8981E
PKIA1942E

DI-40
TRIPLE METERS
Revision: 2006 November2007 350Z
Vehicle Speed Signal InspectionNKS0006R
Symptom: Speed indication is not displayed properly.
1. CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Start engine and select “METER A/C AMP” on CONSULT-III.
2. Using “SPEED METER” on the “DATA MONITOR”, compare the value of data monitor with speed indica-
tion of trip computer.
OK or NG
OK >> Refer to DI-18, "Vehicle Speed Signal Inspection" of “COMBINATION METERS”.
NG >> Replace triple meter.
Fuel Consumption Monitor Signal InspectionNKS0006S
Symptom:

DTE (distance to empty) indication is not displayed properly.

Average fuel consumption indication is not displayed properly.
1. CHECK ECM (CONSULT-III)
Perform self-diagnosis of ECM. Refer to EC-116, "
CONSULT-III Function (ENGINE)" .
Self
-diagnostic results
No malfunction detected>>Replace unified meter and A/C amp.
Malfunction detected>>Check applicable parts, and repair or replace corresponding parts.
Oil Pressure Sensor Signal InspectionNKS0006T
Symptom: Indication is malfunction of oil pressure gauge.
1. CHECK OIL PRESSURE SENSOR SIGNAL INPUT
1. Turn ignition switch ON.
2. Check voltage between triple meter harness connector M44 ter-
minal 8 and ground.
OK or NG
OK >> Replace triple meter.
NG >> GO TO 2.
Average vehicle speed indication is not indicated properly.
Replace triple meter. Trip distance indication is not indicated properly.
Trip time indication is not indicated properly.
Stopwatch indication is not displayed properly.
Indication is malfunction of voltmeter.
Indication is malfunction of oil pressure gauge. Refer to DI-40, "
Oil Pressure Sensor Signal Inspection" .
Trip computer switch is not operate. Refer to DI-42, "
Trip Computer Switch Inspection" . Trouble phenomenon Possible cause
8 – Ground
When ignition switch is in ON
position (Engine stopped.): Approx. 1 V
Engine running [When the oil
pressure is 80 psi (500 kPa)]: Approx. 3 V
SKIB1167E

TRIPLE METERS
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2. CHECK OIL PRESSURE SENSOR POWER SUPPLY
Check voltage between triple meter harness connector M44 terminal
9 and ground.
OK or NG
OK >> GO TO 3.
NG >> Replace triple meter.
3. CHECK OIL PRESSURE SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect triple meter and oil pressure switch connector.
3. Check continuity between triple meter harness connector M44
terminal 9 and oil pressure sensor harness connector F21 termi-
nal 1.
4. Check continuity between triple meter harness connector M44
terminal 9 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK OIL PRESSURE SENSOR SIGNAL CIRCUIT
1. Check continuity between triple meter harness connector M44
terminal 8 and oil pressure sensor harness connector F21 termi-
nal 2.
2. Check continuity between triple meter harness connector M44
terminal 8 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK OIL PRESSURE SENSOR GROUND CIRCUIT
Check continuity between triple meter harness connector M44 termi-
nal 7 and oil pressure sensor harness connector F21 terminal 3.
OK or NG
OK >> Replace oil pressure sensor.
NG >> Repair harness or connector.9 – Ground : Approx. 5 V
SKIB1168E
9 – 1 : Continuity should exist.
9 – Ground : Continuity should not exist.
SKIB1169E
8 – 2 : Continuity should exist.
8 – Ground :Continuity should not exist.
SKIB1170E
7 – 3 : Continuity should exist.
SKIB1171E