Connector NISSAN TEANA 2003 Service Manual

PRECAUTION
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PRECAUTION PFP:00011
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
BKS001RV
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.

COMBINATION METERS
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SPEEDOMETER
ABS actuator and electric unit (control unit) provides a vehicle speed signal to the unified meter and A/C amp.
with CAN communication line. After unified meter and A/C amp. received the vehicle speed signal, it changes
the signal to 8 pulse signal and provides the 8 pulse signal to the combination meter for the speedometer.
TACHOMETER
The tachometer indicates engine speed in revolutions per minute (rpm).
ECM provides an engine speed signal to unified meter and A/C amp. with CAN communication line. Unified
meter and A/C amp. provides an engine speed signal to combination meter for tachometer with communica-
tion line between unified meter and A/C amp. and combination meter.
LOW WATER TEMPERATURE INDICATOR LAMP, HIGH WATER TEMPERATURE WARNING
LAMP
ECM converts water temperature signal from water temperature sensor into data and transmits the data to uni-
fied meter and A/C amp. with CAN communication line. Unified meter and A/C amp. transmit the received
water temperature signal to the combination meter with communication line between unified meter and A/C
amp. and combination meter. Combination meter turns on/off low water temperature indicator lamp or high
water temperature warning lamp through the received water temperature signal.
FUEL GAUGE
The fuel gauge indicates the approximate fuel level in the fuel tank.
The fuel gauge is regulated by a variable ground signal supplied

from unified meter and A/C amp. terminal 36

through the fuel level sensor unit and fuel pump terminals 5 and 2

to unified meter and A/C amp. terminal 28 for the fuel gauge.
Unified meter and A/C amp. provides a fuel level signal to combination meter for fuel gauge with communica-
tion line between unified meter and A/C amp. and combination meter.
Component Parts and Harness Connector LocationBKS001RY
SKIB0770E

DI-18
COMBINATION METERS

Power Supply and Ground Circuit InspectionBKS001S7
1. CHECK FUSE
Check combination meter and unified meter and A/C amp. fuses for blown-out.
OK or NG
OK >> GO TO 2.
NG >> Be sure to eliminate cause of malfunction before installing new fuse. Refer to PG-3, "
POWER
SUPPLY ROUTING CIRCUIT" .
2. CHECK POWER SUPPLY CIRCUIT
1. Check voltage between combination meter harness connector
terminals and ground.
2. Check voltage between unified meter and A/C amp. harness
connector terminals and ground.
OK or NG
OK >> GO TO 3.
NG >> Check the following.

Harness between combination meter and fuse

Harness between unified meter and A/C amp. and fuse
Unit Power source Fuse No.
Combination meter Battery 17
Ignition switch ACC or ON 6
Ignition switch ON or START 14
Unified meter and A/C amp.Battery 19
Ignition switch ACC or ON 6
Ignition switch ON or START 12
Ignition switch ON 10, 11
Terminals Ignition switch position
(+)
(–) OFF ACC ON
Connector Terminal
M707
GroundBattery
voltageBattery
voltageBattery
voltage
17 0 VBattery
voltageBattery
voltage
8 0 V 0 VBattery
voltage
SKIB0774E
Terminals Ignition switch position
(+)
(–) OFF ACC ON
Connector Terminal
M4221
GroundBattery
voltageBattery
voltageBattery
voltage
35 0 VBattery
voltageBattery
voltage
22 0 V 0 VBattery
voltage
M45 46 0 V 0 VBattery
voltage
SKIB0775E

COMBINATION METERS
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3. CHECK GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and unified meter and A/C amp. connector.
3. Check continuity between combination meter harness connector
M70 terminals 10, 11, 12 and ground.
4. Check continuity between unified meter and A/C amp. harness
connector M42 terminal 29, 30 and ground.
OK or NG
OK >> INSPECTION END
NG >> Repair harness or connector.10 – Ground
: Continuity should exist. 11 – Ground
12 – Ground
SKIA8715E
29 – Ground
: Continuity should exist.
30 – Ground
SKIA5202E

DI-20
COMBINATION METERS

Vehicle Speed Signal InspectionBKS001S8
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>>GO TO 2.
Malfunction detected>>Check applicable parts, and repair or replace corresponding parts.
2. CHECK UNIFIED METER AND A/C AMP. OUTPUT SIGNAL
1. Start engine and drive vehicle at approximately 40 km/h (25 MPH).
2. Check voltage signal between unified meter and A/C amp. har-
ness connector M42 terminal 26 and ground with simple oscillo-
scope of CONSULT-II.
OK or NG
OK >> GO TO 3.
NG >>

If monitor indicates “0V” constantly, repair or replace malfunctioning parts after checking each
unit inputting vehicle speed signal (8 pulse), harness and connector between each unit and uni-
fied meter and A/C amp.

If monitor indicates “5V” or “12V” constantly, replace unified meter and A/C amp. Refer to DI-34,
"Removal and Installation of Unified Meter and A/C Amp." .
3. CHECK CONTINUITY BETWEEN COMBINATION METER AND UNIFIED METER AND A/C AMP.
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and unified meter and A/C amp. connector.
3. Check continuity between combination meter harness connector
M70 terminal 20 and unified meter and A/C amp. harness con-
nector M42 terminal 26.
OK or NG
OK >> Replace combination meter.
NG >> Repair harness or connector.26 – Ground:NOTE:
Maximum voltage may be
12V due to specifications
(connected units).
SKIB0338E
SKIA6649J
20 – 26 : Continuity should exist.
SKIB0339E

COMBINATION METERS
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3. CHECK FUEL LEVEL SENSOR SIGNAL CIRCUIT
1. Disconnect unified meter and A/C amp. connector and fuel level sensor unit and fuel pump connector.
2. Check continuity between unified meter and A/C amp. harness
connector M42 terminal 28 and fuel level sensor unit and fuel
pump harness connector B223 terminal 2.
3. Check continuity between unified meter and A/C amp. harness
connector M42 terminal 28 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK FUEL LEVEL SENSOR GROUND CIRCUIT
1. Check continuity between fuel level sensor unit and fuel pump
harness connector B223 terminal 5 and unified meter and A/C
amp. harness connector M42 terminal 36.
2. Check continuity between fuel level sensor unit and fuel pump
harness connector B223 terminal 5 and ground.
OK or NG
OK >> GO TO 5.
NG >> Repair harness or connector.
5. CHECK INSTALLATION CONDITION
Check fuel level sensor unit and fuel pump installation, and check whether the float arm interferes or binds
with any of the internal components in the fuel tank.
OK or NG
OK >> Replace unified meter and A/C amp. Refer to DI-34, "Removal and Installation of Unified Meter
and A/C Amp." .
NG >> Install the fuel level sensor unit and fuel pump properly.
Fuel Gauge Does Not Move to FULL positionBKS001SG
1. QUESTION 1
Does it take a long time for the pointer to move to FULL position?
YES >> GO TO 2.
NO >> GO TO 3.
2. QUESTION 2
Was the vehicle fueled with the ignition switch ON?
YES >> Be sure to fuel the vehicle with the ignition switch OFF. Otherwise, it will take a long time to move
to FULL position because of the characteristic of the fuel gauge.
NO >> GO TO 3.28 – 2 : Continuity should exist.
28 – Ground : Continuity should not exist.
SKIA8723E
5 – 36 : Continuity should exist.
5 – Ground : Continuity should not exist.
SKIB0036E

DI-26
COMBINATION METERS

DISASSEMBLY
1. Disengage the tabs (8) to separate front cover.
2. Disconnect odo/trip meter connector.
3. Disengage the tabs (8) to separate upper housing.
4. Remove screws (1) and remove odo/trip meter.
ASSEMBLY
Assembly is the reverse order of disassembly.
SKIB0868E
SKIA7244E

DI-32
UNIFIED METER AND A/C AMP

DTC [U1000] CAN Communication CircuitBKS002B1
1. CHECK CAN COMMUNICATION
1. Select “CAN DIAG SUPPORT MNTR” mode for “METER A/C AMP” with CONSULT-II.
2. Print out CONSULT-II screen.
>> Go to “LAN SYSTEM”. Refer to LAN-49, "
CAN System Specification Chart" .
DTC [B2202] Meter Communication CircuitBKS002B2
1. CHECK CONNECTOR
Check combination meter, unified meter and A/C amp. and terminals (combination meter side, unified meter
and A/C amp. side and harness side) for looseness or bent terminals.
OK or NG
OK >> GO TO 2.
NG >> Repair terminal or connector.
2. CHECK METER/GAUGES VISUALLY
Does the pointer on the meter/gauge fluctuate at the engine start?
Is the fluctuation acceptable?
YES >> GO TO 3.
NO >> GO TO 6.
3. CHECK CONTINUITY COMMUNICATION CIRCUIT (TX: COMBINATION METER)
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and unified meter and A/C amp. connector.
3. Check continuity between combination meter harness connector
M70 terminal 18 and unified meter and A/C amp. harness con-
nector M41 terminal 19.
4. Check continuity between combination meter harness connector
M70 terminal 18 and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
4. CHECK VOLTAGE OF UNIFIED METER AND A/C AMP.
1. Connect unified meter and A/C amp. connector.
2. Turn ignition switch ON.
3. Check voltage between combination meter harness connector
M70 terminal 18 and ground.
OK or NG
OK >> GO TO 5.
NG >> Replace unified meter and A/C amp. Refer to DI-34,
"Removal and Installation of Unified Meter and A/C
Amp." . 18 – 19 : Continuity should exist.
18 – Ground : Continuity should not exist.
SKIA8726E
18 – Ground : Approx. 5 V
SKIB1049E

UNIFIED METER AND A/C AMP
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5. CHECK VOLTAGE SIGNAL OF COMBINATION METER
1. Turn ignition switch OFF and connect combination meter connector.
2. Turn ignition switch ON.
3. Check voltage signal between combination meter harness con-
nector M70 terminal 18 and ground.
OK or NG
OK >> Replace unified meter and A/C amp. Refer to DI-34,
"Removal and Installation of Unified Meter and A/C Amp." .
NG >> Replace combination meter.
6. CHECK CONTINUITY COMMUNICATION CIRCUIT (RX: COMBINATION METER)
1. Turn ignition switch OFF.
2. Disconnect combination meter connector and unified meter and A/C amp. connector.
3. Check continuity between combination meter harness connector
M70 terminal 19 and unified meter and A/C amp. harness con-
nector M41 terminal 9.
4. Check continuity between combination meter harness connector
M70 terminal 19 and ground.
OK or NG
OK >> GO TO 7.
NG >> Repair harness or connector.
7. CHECK VOLTAGE OF COMBINATION METER
1. Connect combination meter connector.
2. Turn ignition switch ON.
3. Check voltage between unified meter and A/C amp. harness
connector M41 terminal 9 and ground.
OK or NG
OK >> GO TO 8.
NG >> Replace combination meter.18 – Ground:
SKIA8730E
SKIA3361E
19 – 9 : Continuity should exist.
19 – Ground : Continuity should not exist.
SKIA8731E
9 – Ground : Approx. 5 V
SKIB1050E

DI-34
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