2003 NISSAN TEANA low beam

COMBINATION METERS
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FA I L - S A F E
Solution When Communication Error Between the Unified Meter and A/C Amp. and the Com-
bination Meter
Function Specifications
SpeedometerReturn to zero when discontinuing communication or receiv-
ing irregular data.
Tachometer
Reset to zero by suspending communication.
Fuel gauge
Illumination control Combination meter illumination When suspending communication, change to nighttime mode.
Odo/trip meter Integrate in response to 8-pulse input.
Shift indicator The display turns off by suspending communication.
Warning buzzer The warning buzzer turns off by suspending communication.
Warning lamp/indicator lampLow water temperature indicator lamp
The lamp turns on by suspending communication. VDC OFF indicator (With VDC)
SLIP indicator (With VDC)
Brake warning lamp
ABS warning lamp
ASCD CRUISE indicator lamp
The lamp turns off by suspending communication. ASCD SET indicator lamp
Turn signal indicator lamp
High-beam indicator lamp
Front fog indicator lamp
Rear fog indicator lamp
Oil pressure warning lamp
Door warning lamp
High water temperature warning lamp
Malfunction indicator lamp
A/T CHECK warning lamp
CVT indicator lamp
KEY warning lamp
LOCK warning lamp

UNIFIED METER AND A/C AMP
DI-27
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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

DI-30
UNIFIED METER AND A/C AMP

DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
2. Touch either “MAIN SIGNALS” or “SELECTION FROM MENU” on the “DATA MONITOR” screen.
3. When “SELECTION FROM MENU” is selected, touch individual
items to be monitored. When “MAIN SIGNALS” is selected,
main items will be monitored.
4. Touch “START”.
5. Touch “RECORD” while monitoring, then the status of the moni-
tored item can be recorded. To stop recording, touch “STOP”.
Display Item List
MAIN SIGNALS Monitors main signals.
SELECTION FROM MENU Selects and monitors individual signal.
SKIA8739E
Monitor item [Unit] MAIN SIGNALSSELECTION
FROM MENUContents
SPEED METER [km/h] or [mph] X XThis is the angle correction value after the speed signal from
the ABS actuator and electric unit (control unit) is converted
into the vehicle speed.
SPEED OUTPUT [km/h] or [mph] X XThis is the angle correction value before the speed signal
from the ABS actuator and electric unit (control unit) is con-
verted into the vehicle speed.
TACHO METER [rpm] X XThis is the converted value for the engine speed signal from
the ECM.
W TEMP METER [°C] or [°F] X XThis is the converted value for the engine coolant tempera-
ture signal from the ECM.
FUEL METER [lit.] X XThis is the processed value for the signal (resistance value)
from the fuel gauge.
DISTANCE [km] or [mile] X XThis is the calculated value for the speed signal from the
ABS actuator and electric unit (control unit), the signal
(resistance signal) from the fuel gauge and fuel consumption
signal from ECM.
FUEL W/L [ON/OFF] X X Indicates [ON/OFF] condition of low-fuel warning lamp.
MIL [ON/OFF] X Indicates [ON/OFF] condition of malfunction indicator lamp.
BUZZER [ON/OFF] X X Indicates [ON/OFF] condition of buzzer.
DOOR W/L [ON/OFF] X Indicates [ON/OFF] condition of door warning lamp.
HI-BEAM IND [ON/OFF] X Indicates [ON/OFF] condition of high-beam indicator.
TURN IND [ON/OFF] X Indicates [ON/OFF] condition of turn indicator.
FR FOG IND X Indicates [ON/OFF] condition of front fog lamp indicator.
RR FOG IND X Indicates [ON/OFF] condition of rear fog lamp.
OIL W/L [ON/OFF] X Indicates [ON/OFF] condition of oil pressure warning lamp.
LIGHT IND [ON/OFF] X Indicates [ON/OFF] condition of light indicator lamp.
VDC/TCS IND [ON/OFF] X Indicates [ON/OFF] condition of VDC OFF indicator lamp.
ABS W/L [ON/OFF] X Indicates [ON/OFF] condition of ABS warning lamp.
SLIP IND [ON/OFF] X Indicates [ON/OFF] condition of SLIP indicator lamp.
BRAKE W/L [ON/OFF] X Indicates [ON/OFF] condition of brake warning lamp.*
KEY G W/L [ON/OFF] X Indicates [ON/OFF] condition of key warning lamp (green).

CYLINDER BLOCK
EM-229
[VQ]
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DISASSEMBLY
NOTE:
Show VQ35DE (with main bearing beam, connecting rod bearing cap is tighten by bolts) as an example unless
the figure includes specification.
1. Remove engine assembly from vehicle, and separate front suspension member and transaxle from
engine. Refer to EM-223, "
ENGINE ASSEMBLY" .
2. Remove exhaust manifolds (right and left banks). Refer to EM-140, "
EXHAUST MANIFOLD AND THREE
WAY CATALYST" .
3. Install engine sub-attachment with engine stand shaft (SST) to
right side of cylinder block.

Use spacer to engine front side.
4. Lift engine, and mount it onto engine stand (SST).
1. Reinforcement plate 2. Drive plate 3. Rear oil seal retainer
4. Knock sensor 5. Cylinder block 6. Thrust bearing (upper)
7. Main bearing (upper) 8. Crankshaft 9. Key
10. Thrust bearing (lower) 11. Main bearing (lower) 12. Main bearing cap
13. Main bearing cap bolt 14. Main bearing beam 15. Baffle plate
16. Connecting rod nut 17. Connecting rod bolt 18. Connecting rod bearing cap
19. Connecting rod bearing 20. Connecting rod 21. Snap ring
22. Piston pin 23. Piston 24. Oil ring
25. Second ring 26. Top ring 27. Pilot converter
28. Oil jet
PBIC2486E
PBIC2618E

CYLINDER BLOCK
EM-233
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17. Remove main bearing beam. (VQ35DE)
18. Remove main bearing caps.

Using main bearing cap bolts, remove main bearing cap while
shaking it back-and-forth.
19. Remove crankshaft.
20. Remove main bearings and thrust bearings from cylinder block and main bearing caps.
CAUTION:
Identify installation positions, and store them without mixing them up.
21. Remove oil jet. (VQ35DE)
ASSEMBLY
NOTE:
Show VQ35DE (with main bearing beam, connecting rod bearing cap is tighten by bolts) as an example unless
the figure includes specification.
1. Fully air-blow engine coolant and engine oil passages in cylinder block, cylinder bore and crankcase to
remove any foreign material.
CAUTION:
Use a goggles to protect your eye.
PBIC2490E
EMQ0195D

EM-250
[VQ]
CYLINDER BLOCK

Piston Skirt Diameter
Measure outer diameter of piston skirt with micrometer.
Piston to Cylinder Bore Clearance
Calculate by piston skirt diameter and cylinder bore inner diameter (direction “Y”, position “B”).
(Clearance) = (Cylinder bore inner diameter) – (Piston skirt diameter)

If calculated value exceeds the limit, replace piston and piston pin assembly. Refer to EM-240, "HOW TO
SELECT PISTON" .
Re-boring Cylinder Bore
1. Cylinder bore size is determined by adding piston to cylinder bore clearance to piston skirt diameter.
2. Install main bearing caps and main bearing beam (VQ35DE), and tighten to the specified torque. Other-
wise, cylinder bores may be distorted in final assembly. Refer to EM-233, "
ASSEMBLY" .
3. Cut cylinder bores.
NOTE:

When any cylinder needs boring, all other cylinders must also be bored.

Do not cut too much out of cylinder bore at a time. Cut only 0.05 mm (0.0020 in) or so in diameter at a
time.
4. Hone cylinders to obtain the specified piston to cylinder bore clearance.
5. Measure finished cylinder bore for the out-of-round and the taper.
NOTE:
Measurement should be done after cylinder bore cools down.
CRANKSHAFT MAIN JOURNAL DIAMETER

Measure outer diameter of crankshaft main journals with micrometer.

If out of the standard, measure the main bearing oil clearance. Then use undersize bearing. Refer to EM-
252, "MAIN BEARING OIL CLEARANCE" . Measure point
VQ23DE : Distance from the top 45.4 mm (1.787 in)
VQ35DE : Distance from the top 41.0 mm (1.614 in)
Standard
VQ23DE : 84.980 - 85.010 mm (3.3457 - 3.3468 in)
VQ35DE : 95.480 - 95.510 mm (3.7590 - 3.7602 in)
PBIC0125E
Standard : 0.010 - 0.030 mm (0.0004 - 0.0012 in)
Limit : 0.08 mm (0.0031 in)
Re-bored size calculation: D = A + B – C
where,
D: Bored diameter
A: Piston skirt diameter as measured
B: Piston to cylinder bore clearance (standard value)
C: Honing allowance 0.02 mm (0.0008 in)
Standard : 59.951 - 59.975 mm (2.3603 - 2.3612 in) dia.

TROUBLE DIAGNOSIS
LAN-51
[CAN]
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LAN

CAN Communication Signal ChartBKS002DP
Refer to LAN-15, "How to Use CAN Communication Signal Chart" for how to use CAN communication signal
chart.
TYPE 1/TYPE 2
NOTE:
Refer to LAN-41, "
Abbreviation List" for the abbreviations of the connecting units.
T: Transmit R: Receive
Signals
ECM
ADP
BCM
M&A
DISP
TCM
ABS
IPDM-E
A/C compressor request signal T R
Accelerator pedal position signal T R
Closed throttle position signal T R
Cooling fan speed request signal T R
Engine and A/T integrated control signalTR
RT
Engine coolant temperature signal T R
Engine speed signal T R
Fuel consumption monitor signalTR
TR
Malfunction indicator signal T R
Wide open throttle position signal T R
A/C switch signal R T
Blower fan motor switch signal R T
Buzzer output signal T R
Door switch signal R T R R
Front fog light request signal T R R
Front wiper request signal T R
High beam request signal T R R
Ignition switch signal R T R
Key fob door unlock signal R T
Key fob ID signal R T
Key switch signal R T
Low beam request signal T R
Oil pressure switch signalRT
TR
Position light request signal T R R
Rear fog status signal T R
Rear window defogger switch signal T R
Sleep wake up signal T R R
Turn indicator signal T R
3rd position switch signal T R
A/C switch/indicator signalRT
TR
Distance to empty signal T R
Fuel level low warning signal T R
Stop lamp switch signal T R

LAN-52
[CAN]
TROUBLE DIAGNOSIS

*: P range only
TYPE 3
NOTE:
Refer to LAN-41, "
Abbreviation List" for the abbreviations of the connecting units.
T: Transmit R: Receive Vehicle speed signalRT
RRR T R
A/T CHECK indicator lamp signal R T
A/T position indicator lamp signal
R
*RT
Output shaft revolution signal R T
ABS warning lamp signal R T
Brake warning lamp signal R T
Front wiper stop position signal R T
High beam status signal R T
Low beam status signal R T
Rear window defogger control signal R R R TSignals
ECM
ADP
BCM
M&A
DISP
TCM
ABS
IPDM-E
SignalsECM
ADP
AFS
BCM
I-KEY
M&A
STRG
DISP
TCM
ABS
IPDM-E
A/C compressor request signal TR
Accelerator pedal position signal T R R
Closed throttle position signal T R
Cooling fan speed request signal TR
Engine and A/T integrated control signalTR
RT
Engine coolant temperature signal T R
Engine speed signal T R R
Fuel consumption monitor signalTR
TR
Malfunction indicator signal T R
Wide open throttle position signal T R
A/C switch signal R T
Blower fan motor switch signal R T
Buzzer output signalTR
TR
Door lock/unlock status signal T R
Door switch signal R T R R R
Front fog light request signal T R R
Front wiper request signal T R
High beam request signal T R R
Ignition switch signal R T R
Key fob door unlock signal R T
Key fob ID signal R T
Key switch signal R T