2003 NISSAN TEANA ESP

UNIFIED METER AND A/C AMP
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UNIFIED METER AND A/C AMPPFP:27760
System DescriptionBKS001SK

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

Unified meter and A/C amp. controls each operation for A/C
auto amp. For information regarding A/C control, refer to AT C -
24, "AIR CONDITIONER CONTROL" .

Unified meter and A/C amp. inputs necessary information for
combination meter from each unit by CAN communication and
so on.

And unified meter and A/C amp. outputs these signals using
communication line (TX, RX) between unified meter and A/C
amp. and combination meter.

The signals required for the distance to empty (DTE) display are centralized in the unified meter and A/C
amp., converted into data, and sent to the display unit (with display unit) using CAN communication.

Other input signals are also sent to the ECM, TCM, BCM and display unit (with display unit) using CAN
communication.

The unified meter and A/C amp. correspond a CONSULT-II function (self-diagnostic results, CAN diag-
nostic support monitor and data monitor).
INPUT/OUTPUT SIGNALS
Between Unified Meter and A/C amp. and Combination Meter
SKIB0778E
Unit Input Output
Unified meter and A/C amp.

Seat belt buckle switch signal (Driver's side)

Parking brake signal

Illumination control nighttime required signal

Refuel status signal

Low-fuel warning lamp condition signal

Combination meter receive error signal

Delivery destination data signal

Combination meter specifications signal

Vehicle speed signal (8-pulse)

Engine speed signal

Engine coolant temperature signal

Fuel level sensor signal (resistance value)

Malfunction indicator lamp signal

ABS warning lamp signal

Brake warning lamp signal

KEY warning lamp signal (With Intelligent Key)

LOCK warning lamp signal (With Intelligent Key)

High-beam request signal

Turn indicator signal

VDC OFF indicator lamp signal (With VDC)

SLIP indicator lamp signal (With VDC)

ASCD CRUISE indicator lamp signal

ASCD SET indicator lamp signal

A/T position indicator signal

A/T CHECK warning lamp signal

CVT indicator lamp signal

CVT position indicator signal

Door switch signal

Oil pressure switch signal

Position lights request signal

Front fog light request signal

Rear fog light request signal

Buzzer output signal

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UNIFIED METER AND A/C AMP

8. CHECK VOLTAGE SIGNAL OF UNIFIED METER AND A/C AMP.
1. Turn ignition switch OFF and connect unified meter and A/C amp. connector.
2. Turn ignition switch ON.
3. Check voltage signal between combination meter harness con-
nector M70 terminal 19 and ground.
OK or NG
OK >> Replace combination meter.
NG >> Replace unified meter and A/C amp. Refer to DI-34, "
Removal and Installation of Unified Meter
and A/C Amp." .
DTC [B2205] Vehicle Speed CircuitBKS002B3
1. CHECK ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) SELF-DIAGNOSIS
Perform the ABS actuator and electric unit (control unit) self-diagnosis. Refer to BRC-57, "
CONSULT-II Func-
tions" (with VDC system) or BRC-17, "CONSULT-II Functions (ABS)" (without VDC system).
Self
-diagnostic results content
No malfunction detected>>Replace unified meter and A/C amp.
Malfunction detected>>Check applicable parts, and repair or replace corresponding parts.
Removal and Installation of Unified Meter and A/C Amp.BKS001SP
REMOVAL
1. Remove the audio unit. Refer to AV- 1 5 , "Removal and Installa-
tion of Audio Unit" (with integrated display system) or AV- 3 4 ,
"Removal and Installation of Audio Unit" (with integrated color
display system).
2. Remove screws (5) and remove bracket.
3. Remove screw and remove the unified meter and A/C amp.
(Auto amp.)
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Unified meter and A/C amp. screws (2) are different from other securing screws. Never confuse them
when installing.19 – Ground:
SKIA8732E
SKIA3362E
SKIA8643E

A/T INDICATOR
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4. CHECK SELF-DIAGNOSIS OF TCM.
Perform TCM self-diagnosis. Refer to AT- 6 7 , "
CONSULT-II Function (A/T)" .
Self-diagnostic results content
No malfunction detected>> Check TCM input/output signal, and repair or replace malfunctioning parts. Refer
to AT- 6 4 , "
TCM Terminals and Reference Value" .
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.

DI-54
CVT INDICATOR

CVT Indicator Is MalfunctionBKS002B6
1. CHECK SELF-DIAGNOSIS OF COMBINATION METER
Perform combination meter self-diagnosis. Refer to DI-13, "
OPERA-
TION PROCEDURE" .
Are all segments displayed?
YES >> GO TO 2.
NO >> Replace combination meter.
2. CHECK SELF-DIAGNOSTIC RESULTS OF UNIFIED METER AND A/C AMP.
Select “METER A/C AMP” on CONSULT-II, and perform self-diagnosis of unified meter and A/C amp. Refer
toDI-29, "
CONSULT-II Function (METER A/C AMP)" .
Self
-diagnostic results content
No malfunction detected>>GO TO 3.
Malfunction detected>>Check applicable parts, and repair or replace corresponding parts.
3. CHECK UNIFIED METER AND A/C AMP. INPUT SIGNAL
1. Connect CONSULT-II and start engine.
2. Use “DATA MONITOR” of “METER A/C AMP” on CONSULT-II.
Confirm each indication on the monitor when operating the shift
lever.
OK or NG
OK >> Replace combination meter.
NG >> GO TO 4.
EL-3828D
CONSULT-II display Switch operationOperation
status
AT - M I N DManual mode range ON
Except for manual mode range OFF
AT - M G E A RManual mode range (shift-up or down) 5-1
Except for manual mode range 1
P RANGE INDP range position ON
Except for P range position OFF
R RANGE INDR range position ON
Except for R range position OFF
N RANGE INDN range position ON
Except for N range position OFF
D RANGE INDD range position ON
Except for D range position OFF
L RANGE INDL range position ON
Except for L range position OFF
PKID0249E

CVT INDICATOR
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4. CHECK SELF-DIAGNOSIS OF TCM.
Perform TCM self-diagnosis. Refer to CVT-43, "
CONSULT-II Function (TRANSMISSION)" .
Self-diagnostic results content
No malfunction detected>> Check TCM input/output signal, and repair or replace malfunctioning parts. Refer
to CVT-40, "
TCM Input/Output Signal Reference Values" .
Malfunction detected>> Check applicable parts, and repair or replace corresponding parts.

WARNING CHIME
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5. CHECK KEY SWITCH
Check continuity between ignition knob switch, key switch and key
lock solenoid connector M20 terminals 3 and 8.
OK or NG
OK >> GO TO 6.
NG >> Replace key switch (Ignition knob switch and key lock
solenoid assembly).
6. CHECK KEY SWITCH CIRCUIT
1. Disconnect BCM connector.
2. Check continuity between BCM harness connector M3 terminal
37 and ignition knob switch, key switch and key lock solenoid
harness connector M20 terminal 8.
3. Check continuity between BCM harness connector M3 terminal
37 and ground.
OK or NG
OK >> Replace BCM. Refer to BCS-16, "Removal and Installa-
tion of BCM" .
NG >> Repair harness or connector.
Key Warning Chime Does Not Operate (With Intelligent Key, When Intelligent
Key Is Carried With The Driver)
BKS001TB
1. CHECK WARNING CHIME OPERATION
Check the chime under conditions in exception of key warning chime (when Intelligent Key is carried with the
driver) operation.
Does warning chime sound?
YES >> GO TO 2.
NO >> Go to DI-67, "
Key Warning Chime and Light Warning Chime Does Not Operated" .
2. CHECK INTELLIGENT KEY UNIT SELF-DIAGNOSTIC
Perform the Intelligent Key unit self-diagnosis. Refer to BL-93, "
CONSULT-II Functions (INTELLIGENT KEY)"
.
OK or NG
OK >> GO TO 3.
NG >> Check the applicable parts, and repair or replace corresponding parts.3 – 8
When key is inserted to
ignition key cylinder: Continuity should
exist.
When key is removed from
ignition key cylinder: Continuity should
not exist.
SKIB1252E
37 – 8 : Continuity should exist.
37 – Ground : Continuity should not exist.
SKIB1253E

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PRECAUTIONS

PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
BBS005B9
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. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
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.
On Board Diagnostic (OBD) System of EngineBBS005BA
The ECM has an on board diagnostic system. It will light up the malfunction indicator (MI) to warn the driver of
a malfunction causing emission deterioration.
CAUTION:

Be sure to turn the ignition switch OFF and disconnect the negative battery cable before any
repair or inspection work. The open/short circuit of related switches, sensors, solenoid valves,
etc. will cause the MI to light up.

Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MI to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)

Certain systems and components, especially those related to OBD, may use a new style slide-
locking type harness connector. For description and how to disconnect, refer to PG-71, "
HAR-
NESS CONNECTOR" .

Be sure to route and secure the harnesses properly after work. The interference of the harness
with a bracket, etc. may cause the MI to light up due to the short circuit.

Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM
before returning the vehicle to the customer.
PrecautionBBS005BB

Always use a 12 volt battery as power source.

Do not attempt to disconnect battery cables while engine is
running.

Before connecting or disconnecting the ECM harness con-
nector, turn ignition switch OFF and disconnect negative
battery cable. Failure to do so may damage the ECM
because battery voltage is applied to ECM even if ignition
switch is turned OFF.

Before removing parts, turn ignition switch OFF and then
disconnect negative battery cable.
SEF289H

EC-40
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BASIC SERVICE PROCEDURE

BASIC SERVICE PROCEDUREPFP:00018
Basic InspectionBBS005BT
1. INSPECTION START
1. Check service records for any recent repairs that may indicate a related malfunction, or a current need for
scheduled maintenance.
2. Open engine hood and check the following:
–Harness connectors for improper connections
–Wiring harness for improper connections, pinches and cut
–Vacuum hoses for splits, kinks and improper connections
–Hoses and ducts for leaks
–Air cleaner clogging
–Gasket
3. Confirm that electrical or mechanical loads are not applied.
–Headlamp switch is OFF.
–Air conditioner switch is OFF.
–Rear window defogger switch is OFF.
–Steering wheel is in the straight-ahead position, etc.
4. Start engine and warm it up until engine coolant temperature
indicator points the middle of gauge.
Ensure engine stays below 1,000 rpm.
5. Run engine at about 2,000 rpm for about 2 minutes under no-
load.
6. Make sure that no DTC is displayed with CONSULT-II.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. REPAIR OR REPLACE
Repair or replace components as necessary according to corresponding Diagnostic Procedure.
>> GO TO 3
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