fuel consumption NISSAN NAVARA 2005 Repair Workshop Manual

SYSTEM DESCRIPTION
AV-5
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AV
Personal Audio Setting
The radio is designed to store several settings (volume, bass, treble, preset stations) with every NATS ignition
key used. Up to a maximum of 4 NATS keys can be registered. During the communication mentioned under
“Anti-Theft System”, the radio will recognize the used ignition key and select the accompanying settings.
VEHICLE INFORMATION SYSTEM
lThe status of audio system, fuel consumption, rear view monitor and navigation system are displayed.
lNAVI control unit receives the data signal from ECM, combination meter via CAN communication. It calcu-
lates the values of fuel economy, and trip computer from the received information and displays them.
NAVIGATION SYSTEM
Refer to Owner's Manual or navigation system Owner's Manual for navigation system operating instructions.
Location Detection Principle
The navigation system periodically calculates the vehicle's current
position according to the following three signals:
lTravel distance of the vehicle as determined by the vehicle
speed sensor
lTurning angle of the vehicle as determined by the gyroscope
(angular velocity sensor)
lDirection of vehicle travel as determined by the GPS antenna
(GPS information)
The current position of the vehicle is then identified by comparing the
calculated vehicle position with map data read from the map DVD-
ROM, which is stored in the DVD-ROM drive (map-matching), and
indicated on the screen as a vehicle mark. More accurate data is judged and used by comparing vehicle posi-
tion detection results found by the GPS with the result by map-matching.
The current vehicle position will be calculated by detecting the dis-
tance the vehicle moved from the previous calculation point and its
direction.
lTravel distance
Travel distance calculations are based on the vehicle speed
sensor input signal. Therefore, the calculation may become
incorrect as the tires wear down. To prevent this, an automatic
distance correction function has been adopted.
lTravel direction
Change in the travel direction of the vehicle is calculated by a
gyroscope (angular velocity sensor) and a GPS antenna (GPS
information). They have both advantages and disadvantages.
More accurate traveling direction is detected because priorities are set for the signals from these two
devices according to the situation.
No communication from IMMU to radio 1. If NATS is malfunctioning, check NATS
system.
2. After NATS is repaired, reset radio to
NEW state by authorized representative
of Clarion.After switching on the radio, the radio will
display “SECURE” after 1 minute. Further
use of radio is impossible until communica-
tion is established again, or after radio is
reset by authorized representative of Clar-
ion.
When initialized between ECM and IMMU. Radio needs to be reset to NEW status by
authorized representative of Clarion.After switching on the radio, it will display
“SECURE” after 1 minute. Item Service procedure Description
SKIB1058E
Type Advantage Disadvantage
Gyroscope
(angular velocity sensor)Can detect the vehicle's turning angle
quite accurately.Direction errors may accumulate when vehicle is
driven for long distances without stopping.
GPS antenna
(GPS information)Can detect the vehicle's travel direction
(North/South/East/West).Correct direction cannot be detected when vehi-
cle speed is low.
SEL684V

COMBINATION METERS
DI-5
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FUEL GAUGE
The fuel gauge indicates the approximate fuel level in the fuel tank.
Combination meter reads a resistor signal from fuel level sensor unit.
Signal is supplied
lto combination meter terminal 9
lthrough fuel level sensor unit terminal 1 and 2
lfrom combination meter terminal 4.
ODO/TRIP METER
lABS actuator and electric unit (control unit) converses a pulse signal from wheel sensor to vehicle speed
signal, and transmits vehicle speed signal to combination meter with CAN communication.
lCombination meter uses the vehicle speed signal to calculate the mileage, and it displays.
How to Change/ Reset Indication
lIndication can be changed in the following order by momentarily
pressing the odo/trip meter switch (1).
–Trip A®Trip B®DTE®Average fuel economy®Average
vehicle speed®Running time®Trip A ···.
lHolding the switch for more than 1 second resets displayed
mode (except DTE).
lHolding the switch for more than 3 seconds resets all functions
(except trip A and DTE).
NOTE:
lAfter the display changes automatically, the indication can be
changed to the next mode by pressing the odo/trip meter switch.
lThe record of the odometer is kept even if the battery cable is disconnected.
TRIP COMPUTER
Function
The trip computer can indicate the following items.
lDTE (distance to empty)
lAverage fuel economy
lAverage vehicle speed
lRunning time
DTE (Distance to Empty) Indication
The DTE indication provides the driver with the distance estimation that can be driven before refueling. The
DTE is calculated by signals from the fuel level sensor unit (fuel remaining), ECM (fuel consumption) and ABS
actuator and electric unit (control unit) (vehicle speed). The indication is refreshed every 30 seconds. When
fuel remaining is less than approximately 11.6 (2 1/2 Imp gal), the indication blinks as a warning. If the fuel
remaining is less than approximately 9.6 (2 1/8 Imp gal), the indication shows “---”. In this case, the display
changes to the DTE mode from the different mode. When the battery cable is disconnected and reconnected,
DTE mode displays “---” until the vehicle is driven 0.5 km.
Average Vehicle Speed Indication
Average vehicle speed indication is calculated by running distance and running time. The indication is
refreshed every 30 seconds. If average vehicle speed is reset, average fuel consumption is reset at the same
time. At about 0.5 km and for 30 seconds after resetting, the display shows “- ”®“- ”®“-”®“ -”.
Average Fuel Economy Indication
Average fuel consumption indication is calculated by signals from ABS actuator and electric unit (vehicle
speed) and the ECM (fuel consumption). The indication is refreshed every 30 seconds. At about 0.5 km and
for 30 seconds after resetting, the display shows “- ”®“- ”®“-”®“ -”.
Running Time Indication
Trip time displays ignition switch ON time cumulatively. If trip time is reset, trip distance is reset at the same
time.
SKIB4848E

COMBINATION METERS
DI-17
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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 monitor. When “MAIN SIGNALS”
is selected, main items is monitored.
4. Touch “START”.
5. To record monitored item, touch “RECORD” while monitoring. To
stop recording, touch “STOP”.
Display Item List
MAIN SIGNALS Monitors main signals.
SELECTION FROM MENU Selects and monitors individual signal.
SKIA4957E
Display item [Unit]MAIN
SIGNALSSELECTION
FROM MENUContents
SPEED METER [km/h] or [mph] X XThe value of vehicle speed signal, which is input from ABS
actuator and electric unit (control unit).
SPEED OUTPUT [km/h] or [mph] X XThe value of vehicle speed signal, which is transmitted to each
unit with CAN communication.
TACHO METER [rpm] X X The value of engine speed signal, which is input from ECM.
W TEMP METER [°C] or [°F] X XThe value of engine coolant temperature signal, which is input
from ECM.
FUEL METER [lit.] X XThe value, which processes a resistance signal from fuel
gauge.
DISTANCE [km] or [mile] X XThe value, which is calculated by vehicle speed signal from
ABS actuator and electric unit (control unit), fuel gauge and
fuel consumption signal from ECM.
FUEL W/L [ON/OFF] X X Indicates [ON/OFF] condition of low-fuel warning lamp.
C-ENG W/L [ON/OFF] X Indicates [ON/OFF] condition of malfunction indicator.
AIR PRES W/L [ON/OFF] XIndicates [ON/OFF] condition of low tire pressure warning
lamp.
SEAT BELT W/L [ON/OFF] X Indicates [ON/OFF] condition of seat belt warning 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 lamp.
TURN IND [ON/OFF] X Indicates [ON/OFF] condition of turn indicator.
FR FOG IND [ON/OFF] X Indicates [ON/OFF] condition of front fog indicator lamp.
RR FOG IND [ON/OFF] X Indicates [ON/OFF] condition of rear fog indicator lamp.
OIL W/L [ON/OFF] X Indicates [ON/OFF] condition of oil pressure warning lamp.
VDC/TCS IND [ON/OFF] X Indicates [ON/OFF] condition of ESP 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.*

EC-44
TROUBLE DIAGNOSIS
SYSTEM — Basic engine control systemSYMPTOM
Reference
page
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEAT/HIGH ENGINE COOLANT TEMPERATURE
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
ABNORMAL SMOKE COLOR
DEAD BATTERY (UNDER CHARGE)
Malfunction indicator illuminates.
Can be detected by CONSULT-II?BLACK SMOKE
WHITE SMOKE
Warranty symptom code AG AH AJ AK AL AM AP HA
Fuel pump 5 5 5 5 1 1 —
Fuel injector 3 3 3 4 3 3 1 1EC-125
Glow control system1EC-295
Engine body 3 3 3 3 1 3EM-106
EGR system3EC-302
Air cleaner and duct3EM-15
Fuel rail pressure relief valve 3 3 3 3EC-88
ENGINE CONTROL
Fuel pump circuit 4 4 4 4 1 1EC-217
Fuel injector circuit 1 1 1 1 1 1 1 1EC-125
Fuel injector adjustment value 1 1 1 1 1 1EC-25
Mass air flow sensor circuit 1 1 1EC-92
Engine coolant temperature circuit 1 1 1 1 1EC-103
Vehicle speed signal circuit11LAN-30
Accelerator pedal position sensor circuit 1 1 1EC-108
,
EC-142
,
EC-275
Fuel rail pressure sensor circuit11EC-118

TROUBLE DIAGNOSIS
EC-45
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EC
1 - 5: The numbers refer to the order of inspection.
ENGINE CONTROL
Crankshaft position sensor circuit 1 1 1 1EC-159
Camshaft position sensor circuit11EC-171
Turbocharger boost sensor circuit 1 1EC-153
Turbocharger boost control solenoid valve cir-
cuit11EC-309
Start signal circuitEC-348
Ignition switch circuitEC-71
Heat up switch circuitEC-319
Power supply for ECM circuit11EC-71
Cooling fan relay circuit 2EC-132
EGR volume control valve circuit 1EC-302
Glow relay circuit1EC-295
ECM relay (Self shut-off) circuit1EC-232
ECM 22 22222 2222EC-213
,
EC-215
,
EC-269
NATS (Nissan Anti-theft System)1EC-28
SYSTEM — Basic engine control systemSYMPTOM
Reference
page
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEAT/HIGH ENGINE COOLANT TEMPERATURE
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
ABNORMAL SMOKE COLOR
DEAD BATTERY (UNDER CHARGE)
Malfunction indicator illuminates.
Can be detected by CONSULT-II?BLACK SMOKE
WHITE SMOKE
Warranty symptom code AG AH AJ AK AL AM AP HA

CAN COMMUNICATION
LAN-33
[CAN]
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LAN
Input/output signal chart
T: Transmit R: Receive
Signals ECMNAVI con-
trol unitFront air
controlBCMCombina-
tion meterABS actua-
tor and
electric unit
(control
unit)IPDM E/R
A/C compressor request signal TR
ASCD CRUISE lamp signal T R
ASCD SET lamp signal T R
Cooling fan speed request signal TR
Engine coolant temperature signal T R R
Engine speed signal T R R
Engine status signal T R R
Fuel consumption monitor signalTR
RT
Glow indicator signal T R
Glow relay signal T R
Malfunction indicator signal T R
A/C switch/indicator signal T
R
*
PTC heater signal R T
A/C switch signal R
R
*T
Buzzer output signal T R
Day time running light request signal R T R R
Door switch signal T R R
Front fog light request signal R T R R
Front wiper request signal T R
High beam request signal T R R
Horn chirp signal T R
Low beam request signal T R
Position light request signal T R R
Rear fog light request signal R T R
Rear window defogger switch signal
R
*TR
Sleep wake up signal T R R
Theft warning horn request signal T R
Trailer lamp signal T R
Turn indicator signal T R
Distance to empty signal R T
Fuel level low warning signal R T
ABS warning lamp signalRT
Vehicle speed signalR
*RT
RR
R
*RT
Front wiper stop position signal R T
Hood switch signal R T
Oil pressure switch signalRT
Rear window defogger control signal R T

CAN COMMUNICATION
LAN-35
[CAN]
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LAN
Closed throttle position signal T R
Cooling fan speed request signal TR
Engine coolant temperature signal T R R
Engine speed signal T R R R
Engine status signal T R R
Fuel consumption monitor signalTR
RT
Glow indicator signal T R
Glow relay signal T R
Malfunction indicator signal T R
Wide open throttle position signal T R
A/T fluid temperature sensor signal T R
A/T position indicator lamp signal T R
OD OFF indicator lamp signal T R
Output shaft revolution signal R T
Turbine revolution signal R T
A/C switch/indicator signal T R
PTC heater signal R T
A/C switch signal R R T
Buzzer output signal T R
Day time running light request signal R T R R
Door switch signalTR R
Front fog light request signal R T R R
Front wiper request signal T R
High beam request signal T R R
Horn chirp signalTR
Low beam request signal T R
Position light request signal T R R
Rear fog light request signal R T R
Rear window defogger switch signal R T R
Sleep wake up signal T R R
Theft warning horn request signal T R
Trailer lamp signalTR
Turn indicator signal T R
1st position switch signal R T
Distance to empty signal R T
Fuel level low warning signal R T
Overdrive control switch signal R T
Stop lamp switch signal R T
ABS operation signal R T
ABS warning lamp signalRT Signals ECM TCMNAVI
control
unitFront air
controlBCMCombi-
nation
meterABS
actuator
and elec-
tric unit
(control
unit)IPDM
E/R

CAN COMMUNICATION
LAN-39
[CAN]
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LAN
Input/output signal chart
T: Transmit R: Receive
Signals ECMNAVI
control
unitDiffer-
ential
lock
control
unitFront air
con-
trol
*1BCMCombi-
nation
meterTrans-
fer con-
trol unitABS
actua-
tor and
electric
unit
(control
unit)IPDM
E/R
A/C compressor request signal TR
ASCD CRUISE lamp signal T R
ASCD SET lamp signal T R
Cooling fan speed request signal TR
Engine coolant temperature signal T R R
Engine speed signal T R R R
Engine status signal T R R
Fuel consumption monitor signalTR
RT
Glow indicator signal T R
Glow relay signal T R
Malfunction indicator signal T R
A/C switch/indicator signal T
R
*2
Differential lock indicator signal T R
Differential lock switch signal T R
PTC heater signal
*3RT
A/C switch signal R
R
*2T
Buzzer output signal T R
Day time running light request signal R T R R
Door switch signal T R R
Front fog light request signal R T R R
Front wiper request signal T R
High beam request signal T R R
Horn chirp signal T R
Low beam request signal T R
Position light request signal T R R
Rear fog light request signal R T R
Rear window defogger switch signal R T R
Sleep wake up signal T R R
Theft warning horn request signal T R
Trailer lamp signal T R
Turn indicator signal T R
Distance to empty signal R T
Fuel level low warning signal R T
4WD shift switch signal R T
ABS warning lamp signal R T
Stop lamp switch signalRT

LAN-42
[CAN]
CAN COMMUNICATION
Engine coolant temperature signal T R R
Engine speed signal T R R R R
Engine status signal T R R
Fuel consumption monitor signalTR
RT
Glow indicator signal T R
Glow relay signal T R
Malfunction indicator signal T R
Wide open throttle position signal T R
A/T fluid temperature sensor signal T R
A/T position indicator lamp signal T R R
OD OFF indicator lamp signal T R
Output shaft revolution signal R T R
Turbine revolution signal R T
A/C switch/indicator signal T R
Differential lock indicator signal T R
Differential lock switch signal T R
PTC heater signal
*RT
A/C switch signal R R T
Buzzer output signal T R
Day time running light request signal R T R R
Door switch signal T R R
Front fog light request signal R T R R
Front wiper request signal T R
High beam request signal T R R
Horn chirp signalTR
Low beam request signal T R
Position light request signal T R R
Rear fog light request signal R T R
Rear window defogger switch signal R T R
Sleepwakeupsignal T R R
Theft warning horn request signal T R
Trailer lamp signal T R
Turn indicator signal T R
1st position switch signal R T
Distance to empty signal R T
Fuel level low warning signal R T
Overdrive control switch signal R T
Stop lamp switch signal R TSignals ECM TCMNAVI
con-
trol
unitDiffer-
ential
lock
con-
trol
unitFront
air
controlBCMCom-
bina-
tion
meterTrans-
fer
con-
trol
unitABS
actua-
tor and
elec-
tric unit
(con-
trol
unit)IPDM
E/R