2003 NISSAN TEANA key

GI-28
SERVICE INFORMATION FOR ELECTRICAL INCIDENT

VOLTAGE CHECK METHOD
To help in understanding the diagnosis of open circuits please refer to the previous schematic.
In any powered circuit, an open can be found by methodically checking the system for the presence of voltage.
This is done by switching the DMM to the voltage function.

Connect one probe of the DMM to a known good ground.

Begin probing at one end of the circuit and work your way to the other end.

With SW1 open, probe at SW1 to check for voltage.
voltage; open is further down the circuit than SW1.
no voltage; open is between fuse block and SW1 (point A).

Close SW1 and probe at relay.
voltage; open is further down the circuit than the relay.
no voltage; open is between SW1 and relay (point B).

Close the relay and probe at the solenoid.
voltage; open is further down the circuit than the solenoid.
no voltage; open is between relay and solenoid (point C).
Any powered circuit can be diagnosed using the approach in the previous example.
Testing for “Shorts” in the Circuit
To simplify the discussion of shorts in the system, please refer to the following schematic.
RESISTANCE CHECK METHOD

Disconnect the battery negative cable and remove the blown fuse.

Disconnect all loads (SW1 open, relay disconnected and solenoid disconnected) powered through the
fuse.

Connect one probe of the DMM to the load side of the fuse terminal. Connect the other probe to a known
good ground.

With SW1 open, check for continuity.
continuity; short is between fuse terminal and SW1 (point A).
no continuity; short is further down the circuit than SW1.

Close SW1 and disconnect the relay. Put probes at the load side of fuse terminal and a known good
ground. Then, check for continuity.
continuity; short is between SW1 and the relay (point B).
no continuity; short is further down the circuit than the relay.

Close SW1 and jump the relay contacts with jumper wire. Put probes at the load side of fuse terminal and
a known good ground. Then, check for continuity.
continuity; short is between relay and solenoid (point C).
no continuity; check solenoid, retrace steps.
VOLTAGE CHECK METHOD

Remove the blown fuse and disconnect all loads (i.e. SW1 open, relay disconnected and solenoid discon-
nected) powered through the fuse.

Turn the ignition key to the ON or START position. Verify battery voltage at the battery + side of the fuse
terminal (one lead on the battery + terminal side of the fuse block and one lead on a known good ground).

With SW1 open and the DMM leads across both fuse terminals, check for voltage.
voltage; short is between fuse block and SW1 (point A).
SGI847-A

CONSULT-II CHECKING SYSTEM
GI-33
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CONSULT-II CHECKING SYSTEMPFP:00000
DescriptionBAS0007K

CONSULT-II is a hand-held type tester. When it is connected with a diagnostic connector equipped on the
vehicle side, it will communicate with the control unit equipped in the vehicle and then enable various
kinds of diagnostic tests.

Refer to “CONSULT-II Software Operation Manual” for more information.
Function and System Application BAS0007L
x: Applicable
*1:Nissan Anti-Theft System
Nickel Metal Hydride Battery Replacement BAS0007M
CONSULT-II contains a nickel metal hydride battery. When replacing the battery obey the following:
WARNING:
Replace the nickel metal hydride battery with Genuine CONSULT-II battery only. Use of another bat-
tery may present a risk of fire or explosion. The battery may present a fire or chemical burn hazard if
mistreated. Do not recharge, disassemble or dispose of in fire.
Keep the battery out of reach of children and discard used battery conforming to the local regulations.
Diagnostic test
modeFunction
ENGINE
A/T
TRANSMISSION
AIR BAG
METER A/C AMP
IPDM E/R
BCM
ABS
ABS (Including VDC)
INTELLIGENT KEY
NATS
*1
HEADLAMP LEVELIZER
ADAPTIVE LIGHT
AUTO DRIVE POS.
REARVIEW CAMERA
Work supportThis mode enables a technician to adjust some devices faster
and more accurately by following the indications on CONSULT-
II.xxx- - - x - xx - xxxx
Self-diagnostic
resultsSelf-diagnostic results can be read and erased quickly. xxxxxxxxxx x xxx-
Trouble diagnos-
tic recordCurrent self-diagnostic results and all trouble diagnostic
records previously stored can be read.---x------ - ----
Data monitor Input/Output data in the ECU can be read. x x x - x xxxxx - xxxx
CAN diagnosis
support monitorThe condition of CAN communication line can be indicated. x x x - x xxxxx - - xx-
Active testDiagnostic Test Mode in which CONSULT-II drives some actua-
tors apart from the ECUs and also shifts some parameters in a
specified range.x- - - - xxxxx - xxx-
ECU (ECM/TCM)
part numberECU (ECM/TCM) part number can be read. x x x - - - - x x x - x x x x
ECU discrimi-
nated No.Classification number of a replacement ECU can be read to
prevent an incorrect ECU from being installed.---x------ - ----
Function testThis mode can show results of self-diagnosis of ECU with either
“OK” or “NG”. For engines, more practical tests regarding sen-
sors/switches and/or actuators are available.xxxx---xx- - ----
Control unit ini-
tializationAll registered ignition key IDs in NATS components can be ini-
tialized and new IDs can be registered.---------- x ----
DTC work sup-
portThe operating condition to confirm Diagnosis Trouble Codes
can be selected. -x-------- - ----
CALIB data Characteristic information can be read. - - x - ------ - ----
Configuration - - - - - - - x - - - - x - - -

GI-34
CONSULT-II CHECKING SYSTEM

Checking Equipment BAS0007N
When ordering the following equipment, contact your NISSAN/INFINITI distributor.
CAUTION:

Previous CONSULT-II “I” and “Y” DLC-I and DLC-II cables should NOT be used anymore because
their DDL connector pins can be damaged during cable swapping.

If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.

If CONSULT-II CONVERTER is not connected with CONSULT-II, vehicle occur the “FAIL SAFE
MODE” which is “LIGHT UP the HEAD LIGHT” and/or “COOLING FAN ROTATING” when CON-
SULT-II is started.
NOTE:

The CONSULT-II must be used in conjunction with a program card.
CONSULT-II does not require loading (Initialization) procedure.

Be sure the CONSULT-II is turned off before installing or removing a program card.
CONSULT-II Start ProcedureBAS0007O
NOTE:
Turning ignition switch off when performing CAN diagnosis could cause CAN memory to be erased.
1. Connect CONSULT-II and CONSULT-II CONVERTER to the
data link connector.
2. If necessary, turn on the ignition switch.
3. Touch “START(NISSAN BASED VHCL)” or System Shortcut key
(ex: ENGINE) on the screen.
Tool nameDescription
NISSAN CONSULT-II
1. CONSULT-II unit (Tester internal soft: Resident
version 3.3.0) and accessories
2. Program card AED06A and AEN06A (For NATS)
3. CONSULT-II CONVERTER
SAIA0362E
PAIA0070E
SAIA0450E

INSTRUMENT PANEL ASSEMBLY
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Disassembly and AssemblyBIS00128
CENTER CONSOLE
Disassembly
1. Remove screws, and remove instrument panel stay cover.
2. Insert a screwdriver wrapped with tape into the gap around con-
sole mask, and then disengage pawls and remove console
mask.
3. Remove screws and harness clips from rear of cup holder back, and then remove inside key antenna-1.
4. Remove rear screws from back, and remove cup holder.
5. Open console lid and remove screws, and then remove console lid.
6. Insert a remover into the gap around box finisher, and then disengage clips and remove box finisher.
7. Remove screws, and then remove console finisher (LH/RH).
1. Console box 2. Console finisher (RH) 3. Screw
4. Box finisher 5. Instrument panel stay cover 6. Console body
7. Console finisher (LH) 8. Cup holder 9. Inside key antenna-1
10. Console bracket 11. Console lid 12. Console mask
PIIB0599E
PIIA6350E

LAN-2 Harness Layout ...................................................... 68
Malfunction Area Chart ........................................... 69
MAIN LINE ........................................................... 69
BRANCH LINE .................................................... 69
SHORT CIRCUIT ................................................ 69
Main Line Between Driver Seat Control Unit and
Data Link Connector ............................................... 70
Main Line Between Data Link Connector and TCM ... 71
Main Line Between TCM and ABS Actuator and
Electric Unit (Control Unit) ...................................... 71
ECM Branch Line Circuit ........................................ 72
Driver Seat Control Unit Branch Line Circuit .......... 73
AFS Control Unit Branch Line Circuit ..................... 74BCM Branch Line Circuit ......................................... 74
Data Link Connector Branch Line Circuit ................ 75
Intelligent Key Unit Branch Line Circuit ................... 76
Unified Meter and A/C Amp. Branch Line Circuit .... 76
Steering Angle Sensor Branch Line Circuit ............. 77
Display Control Unit Branch Line Circuit ................. 78
Display Unit Branch Line Circuit ............................. 78
TCM Branch Line Circuit (Models with A/T) ............ 79
TCM Branch Line Circuit (Models with CVT) .......... 80
ABS Actuator and Electric Unit (Control Unit) Branch
Line Circuit .............................................................. 80
IPDM E/R Branch Line Circuit ................................. 81
CAN Communication Circuit ................................... 82

LAN-28
[CAN FUNDAMENTAL]
TROUBLE DIAGNOSES WORK FLOW

d. Reception item of “BCM”: On “TCM”, “UNKWN” is indicated. This means BCM cannot receive the signal
from TCM. Draw a line to indicate an error between BCM and TCM (line 2-d in the figure).
e. Reception item of “EPS” and “INTELLIGENT KEY”: “UNKWN” is not indicated. This indicates normal com-
munication between EPS and I-KEY and their receiving units. Do not draw any line.
NOTE:
On CAN DIAG SUPPORT MNTR (without PAST), “UNKWN” is indicated even though the item is not used
in the trouble diagnosis. For the details of each item on CAN diagnostic support monitor, refer to LAN-44,
"CAN Diagnostic Support Monitor" .
SKIB8726E

HOW TO USE THIS SECTION
LAN-41
[CAN]
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HOW TO USE THIS SECTIONPFP:00008
CautionBKS002DH

This section describes information specific to a vehicle, sheets for trouble diagnosis, and inspection pro-
cedures.

For trouble diagnosis procedure, refer to LAN-17, "Trouble Diagnosis Procedure" .
Abbreviation ListBKS002DI
Abbreviations in CAN communication signal chart and the diagnosis sheet are as per the following list.
Abbreviation Unit nameSELECT SYSTEM
(CONSULT-II)CAN DIAG SUPPORT MNTR
(CONSULT-II)
ABS ABS actuator and electric unit (control unit) ABS VDC/TCS/ABS
ADP Driver seat control unit AUTO DRIVE POS. –
AFS AFS control unit ADAPTIVE LIGHT –
BCM BCM BCM BCM/SEC
DISPDisplay unit
– DISPLAY
Display control unit
DLC Data link connector – –
ECM ECM ENGINE ECM
I-KEY Intelligent Key unit INTELLIGENT KEY I-KEY
IPDM-E IPDM E/R IPDM E/R IPDM E/R
M&A Unified meter and A/C amp. METER A/C AMP METER/M&A
STRG Steering angle sensor – STRG
TCM TCMA/T
TCM
TRANSMISSION

TROUBLE DIAGNOSIS
LAN-45
[CAN]
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BCM
NOTE:
Replace the unit when “NG” is indicated on the “INITIAL DIAG”.
Intelligent Key unit
0: Error at present, 1 – 39: Error in the past (Number means the number of times the ignition switch is turned OFF→ON)
*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased.
Unified meter and A/C amp.
0: Error at present, 1 – 39: Error in the past (Number means the number of times the ignition switch is turned OFF→ON)
*: 39 or higher number is fixed at 39 until the self-diagnosis result is erased.SELECT SYS-
TEMCAN DIAG SUP-
PORT MNTRDescriptionNormal Error
PRSNT
BCMINITIAL DIAG Status of CAN controller
OKNG
TRANSMIT DIAG Signal transmission status
UNKWN ECM Signal receiving status from the ECM
IPDM E/R Signal receiving from the IPDM E/R
METER/M&A Signal receiving status from the unified meter and A/C amp.
I-KEY Not used even though indicated
TCM Signal receiving status from the TCM OK UNKWN
SELECT SYS-
TEMCAN DIAG SUP-
PORT MNTRDescriptionNormal Error
PRSNT PAST PRSNT PAST
INTELLIGENT
KEYTRANSMIT DIAG Signal transmission status
OKOK
or
1 – 39
*UNKWN 0 ECM Signal receiving status from the ECM
METER/M&ASignal receiving status from the unified
meter and A/C amp.
BCM/SEC Signal receiving status from the BCM
SELECT SYS-
TEMCAN DIAG SUP-
PORT MNTRDescriptionNormal Error
PRSNT PAST PRSNT PAST
METER A/C AMPTRANSMIT DIAG Signal transmission status
OKOK
or
1 – 39
*UNKWN 0 ECM Signal receiving status from the ECM
TCM Signal receiving status from the TCM
BCM/SEC Signal receiving status from the BCM
VDC/TCS/ABSSignal receiving status from the ABS actu-
ator and electric unit (control unit)
IPDM E/R Not used even though indicated
DISPLAYModels with color display: Signal receiving
status from the display control unit
OKOK
or
1 – 39
*UNKWN 0 Models without color display: Signal
receiving status from the display unit
I-KEYSignal receiving status from the Intelligent
Key unit
EPS
Not used even though indicated AW D/4W D
e4WD
ICC
LANE KEEP
TIRE-P