2007 NISSAN 350Z light

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 ....................................

PRECAUTIONS
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PRECAUTIONS PFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
NKS0005P
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Battery ServiceNKS0005Q
Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.

DI-6
COMBINATION METERS
Revision: 2006 November2007 350Z
How to Change The Display
Pressing the odo/trip meter switch toggles the display mode in the following order.

The odo/trip meter display mode toggling and trip display resetting can be identified by the time elapsed
from pressing the odo/trip meter switch to releasing it.

When resetting with “trip A” displayed, only “trip A” is reset. (The “trip B” functions in the same way.)
NOTE:
The record of the odo meter is kept even if the battery cable is disconnected. The record of the trip meter is
erased when the battery cable is disconnected.
ILLUMINATION CONTROL
Daytime Mode
When ignition switch is turned ON, combination meter and triple meter illumination is turned ON by unified
meter control unit.
Nighttime Mode

Unified meter control unit is transferred to nighttime mode, with ignition switch turned ON and position
light request signal from BCM with CAN communication.

When in nighttime mode, trip computer switch, and illumination control switch illumination turns ON by
unified meter control unit. Each illumination is controlled by unified meter control unit.

Each illumination can be adjusted to 16 step by illumination con-
trol switch in nighttime mode.
NOTE:
For further details of illumination circuit, refer to LT- 1 5 6 , "
ILLUMINA-
TION" .
PKIC4659E
SKIA7096E

COMBINATION METERS
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Terminals and Reference Value for Combination MeterNKS0005X
Terminal
No.Wire
colorItemMeasuring condition
Reference value
(Approx.) Ignition
switchOperation or condition
10
B Ground ON — 0 V 11
12
14 LG ACC power supply ACC — Battery voltage
18 R/Y Illumination signal ONLighting switch ON, then
operate the illumination
control 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
PKIA3771E
PKIA1935E
SKIA3361E
SKIA3362E

TRIPLE METERS
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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

TRIPLE METERS
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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

DI-44
UNIFIED METER AND A/C AMP
Revision: 2006 November2007 350Z
UNIFIED METER AND A/C AMPPFP:27760
System DescriptionNKS0006X
DESCRIPTION

For the unified meter and A/C amp., the signal required for con-
trolling the combination meter and triple meter are integrated in
the A/C auto amp.

Unified meter and A/C amp. corresponds a CONSULT-III func-
tion (self-diagnosis results, CAN diagnosis support monitor and
data monitor).
COMBINATION METER CONTROL FUNCTION

Unified meter and A/C amp. receives necessary information for combination meter from each unit.

Unified meter and A/C amp. converses with the combination meter transmits a signal through with com-
munication line (TX, RX) between unified meter and A/C amp. and combination meter.
Input/output signals between unified meter and A/C amp. and combination meter.
NOTE:
Combination meter performs fail-safe operation when unified meter and A/C amp. communication is malfunctioning. Refer to DI-7,
"FAIL-SAFE" .
SKIB0018E
Unit Input Output
Unified meter and A/C amp.

Seat belt buckle switch signal (Driver's side)

Trip computer mode switch signal

Trip computer setting switch signal

Illumination control nighttime required signal

Refuel status signal

Vehicle speed signal

Low-fuel warning lamp condition signal

Self-diagnosis condition signal

Odo/trip switch signal

Delivery destination data signal

Combination meter receive error signal

Combination meter specifications signal

Triple meter specifications signal

Engine speed signal

Engine coolant temperature signal

Fuel level sensor signal (resistance value)

Malfunction indicator lamp signal

ABS warning lamp signal

Tire pressure warning lamp signal

Brake warning lamp signal

Oil pressure warning lamp signal

Turn indicator signal

High beam request signal

VDC OFF indicator lamp signal

TCS OFF indicator lamp signal

SLIP indicator lamp signal

CRUISE indicator lamp signal

SET indicator lamp signal

A/T CHECK indicator lamp signal

A/T position indicator signal

Manual mode indicator signal

Manual mode gear position signal

Shift-up indicator setting signal

CAN communication condition signal of A/T

Door switch signal

Position lights request signal

Buzzer output signal

WARNING CHIME
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WARNING CHIMEPFP:24814
System DescriptionNKS00266

The buzzer for warning chime system is installed in the combination meter.

The buzzer sounds when the combination meter receives buzzer output signal from each unit through uni-
fied meter and A/C amp.
IGNITION KEY WARNING CHIME
With the key inserted into the key switch, and the ignition switch in OFF or ACC position, when driver's door is
open, the ignition key warning chime sounds.

BCM detects key inserted into the key switch, ignition switch in OFF or ACC position, and driver side door
switch ON. And then, BCM transmits buzzer output signal (ignition key warning chime) to unified meter
and A/C amp. with CAN communication.

Unified meter and A/C amp. transmits buzzer output signal (ignition key warning chime) to combination
meter with communication line.

When combination meter receives buzzer output signal (ignition key warning chime), it sounds the buzzer.
LIGHT WARNING CHIME
With ignition switch in OFF or ACC position, drivers door open, and lighting switch in 1ST or 2ND position, the
light warning chime will sounds.

BCM detects ignition switch in OFF or ACC position, driver side door switch ON, and lighting switch in
1ST or 2ND position. And then, BCM transmits buzzer output signal (light warning chime) to unified meter
and A/C amp. with CAN communication line.

Unified meter and A/C amp. transmits buzzer output signal (light warning chime) to combination meter
with communication line.

When combination meter receives buzzer output signal (light warning chime), it sounds the buzzer.
NOTE:
For further details of combination switch, refer to LT- 8 7 , "
Combination Switch Reading Function" .
PKIC4374E
PKIC4375E