2003 NISSAN ALMERA N16 ecm

YEL827D
1. Press “INFO” switch to display vehicle information display.
2. Indication can be changed by in the following order by push-
ing multifunction switch.
Range
Journey distance
Journey time
Average fuel economy
Average vehicle speed
Board computer Display
Range (km or MILES) Displays range to empty with a range of 000.0 to 999.9.
Journey distance (km or MILES) Displays journey distance with a range of 000.0 to 9999
Journey time Displays journey time with a range of 0000:00:00 to 9999:59:59.
Average fuel consumption (/100 km or
MPG)Displays fuel consumption with a range of 00.0 to 999.
Average vehicle speed (km/h or MPH) Displays average vehicle speed with a range of 000 to 999.
RangeNJEL0555S0401The elapsed time indication provides driver with an estimation
of the distance that can be driven before refuelling.The range
is conducted by fuel tank level sensor unit (fuel remaining),
ECM pulse signal (fuel consumption) and vehicle speed signal.
Indication will be renewed every 30 seconds.
When fuel remaining is less than approx. 7.8(6-7/8 Imp qt),
indication will blink as a warning. If the fuel remaining less than
approx. 6.8(6 Imp qt), “– –.–” will be indicated. In this case,
the mode will change to the RANGE mode automatically even
though the display is showing a different item. (See NOTE.)
The range mode includes a low range warning feature: when
the fuel level is low, the range mode is automatically selected
and the digits blink in order to draw the driver′s attention. Press
the “INFO” switch if you wish to return to the mode that was
selected before the warning occurred. The range mark will
remain blinking until next refuelling. When the fuel level drops
even lower, the range display will change to “– – – –”.
Journey DistanceNJEL0555S0402Journey distance indication is conducted by vehicle speed sig-
nal.
If journey distance is reset, journey time will be reset at the
same time.
When pushing “INFO” switch more than approximately 1
second, driving distance will be reset.
Journey TimeNJEL0555S0403Journey time indication is conducted by integration of ignition
ON time.
If journey time is reset, journey distance will be reset at the
same time.
Average Fuel ConsumptionNJEL0555S0404Average fuel consumption indication is conducted by ECM
pulse signal and vehicle speed signal after system is reset.
Indication will be renewed every 30 seconds.
VFD DISPLAY
System Description (Cont’d)
EL-216

Warning indicatorsWarning lamps in
instrument panelWarning detection and cancel conditions Cases of malfunction
ENGINE ENGINEDetection conditionWarning lamp ON signal is
detected while engine is running.
ECM malfunction
Cancel conditionWarning lamp OFF signal is
detected.
ENGINE OIL PRES-
SUREEngine oil
pressureDetection conditionWarning lamp ON signal is
detected for at least approx. 5
seconds while engine is running.Engine oil pressure
decreases.
Cancel conditionWarning lamp OFF signal is
detected.
AIR BAG Air bagDetection conditionWarning lamp ON signal is
detected for at least approx. 10
seconds after ignition switch is
turned ON.SRS air bag system mal-
function
Cancel conditionWarning lamp OFF signal is
detected.
LOW BRAKE FLUID BrakeDetection conditionWarning lamp ON signal (fluid
level) is detected.
Low brake fluid level
Cancel conditionWarning lamp OFF signal is
detected.
OVERHEATING –Detection conditionEngine coolant temperature as
being approx. 119°C (246°F) min.
Engine cooling system
malfunction
Cancel conditionEngine coolant temperature as
being approx. 105°C (221°F)
max.
CHARGE ChargeDetection conditionWarning lamp ON signal is
detected while engine is running.
Charging system malfunctionCharging system mal-
function
Cancel conditionWarning lamp OFF signal is
detected.
LOW WASHER FLUID –Detection conditionWasher liquid level falls below
approx. 0.8(1-3/8 Imp pt)
Low washer liquid level
Cancel condition Except above condition.
LOW FUEL Fuel levelDetection conditionAfter warning lamp ON signal is
detected, vehicle is driven for
over specified distance. [Fuel
level: Approx. 9.6(8-1/2 Imp
pt)]Low fuel level
Cancel conditionWarning lamp OFF signal is
detected.
PARKING BRAKE BrakeDetection conditionParking brake ON signal is
detected while vehicle is running
[approx. 5 km/h (3 MPH) or
faster].Parking brake remains
engaged.
Cancel conditionVehicle is stopped, or parking
brake OFF signal is detected.
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LCD DISPLAY
System Description (Cont’d)
EL-241

Component Parts and Harness Connetor
Location
NJEL0406For details, refer to “ELECTRICAL UNIT LOCATION” (EL-543) and
“HARNESS LAYOUT” (EL-550).
System DescriptionNJEL0407NATS (Nissan Anti-Theft System) has the following immobilizer functions:
Since only NATS ignition keys, whose ID nos. have been registered into the ECM and IMMU of NATS,
allow the engine to run, operation of a stolen vehicle without a NATS registered key is prevented by NATS.
That is to say, NATS will immobilize the engine if someone tries to start it without the registered key of
NATS.
This version of NATS has dongle unit to improve its anti-theft performance(RHD models for Europe).
Dongle unit has its own ID which is registered into NATS IMMU. So if dongle unit is replaced, initialization
must be carried out.
When malfunction of dongle unit is detected:
The security indicator lamp illuminates for about 15 minutes after ignition switch is turned to ON.
− When dongle unit has a malfunction and the indicator lamp is illuminated,engine can not be started.
However engine can be started only one time when security indicator lamp turns off in about 15 minutes
after ignition switch is turned to ON.
All of the originally supplied ignition key IDs have been NATS registered.
If requested by the vehicle owner, a maximum of five key IDs can be registered into the NATS compo-
nents.
The security indicator blinks when the ignition switch is in “OFF” or “ACC”position. Therefore, NATS warns
outsiders that the vehicle is equipped with the anti-theft system.
When NATS detects trouble, the security indicator lamp lights up as follows.
Condition IGN ON andWith dongle Without dongle
MIL Security indicator MIL Security indicator
NATS malfunction
(except dongle unit) is
detected—1. 6 times blinking
2. Staying ON after igni-
tion switch is turned
ON— Staying ON
Only malfunction of
dongle unit is detected.—Staying ON for about 15
minutes after ignition
switch is turned ON——
Malfunction of NATS
and engine related parts
are detected.Staying ON1. 6 times blinking
2. Staying ON after igni-
tion switch is turned
ONStaying ON Staying ON
Only engine related part
malfunction is detected.Staying ON — Staying ON —
Just after initialization of
NATS— 6 times blinking — —
NATS trouble diagnoses, system initialization and additional registration of other NATS ignition key IDs
must be carried out using CONSULT-II hardware and CONSULT-II NATS software.
Regarding the procedures of NATS initialization and NATS ignition key ID registration, refer to CONSULT-II
operation manual, NATS.
When servicing a malfunction of the NATS (indicated by lighting up of Security Indicator Lamp) or
NATS (NISSAN ANTI-THEFT SYSTEM)
Component Parts and Harness Connetor Location
EL-386

registering another NATS ignition key ID no., it may be necessary to re-register original key iden-
tification. Therefore, be sure to receive ALL KEYS from vehicle owner.
System CompositionNJEL0408The immobilizer function of the NATS consists of the following:
NATS ignition key
NATS immobilizer control unit (IMMU) located in the ignition key cylinder
Engine control module (ECM)
Dongle unit (RHD models)
Security indicator
Navigation control unit (Models with Navigation system)
NEL776
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NATS (NISSAN ANTI-THEFT SYSTEM)
System Description (Cont’d)
EL-387

CONSULT-II DIAGNOSTIC TEST MODE FUNCTION=NJEL0410S02
CONSULT-II DIAGNOSTIC TEST
MODEDescription
C/U INITIALIZATION When replacing any of the following components, C/U initialization and re-registration of all
NATS ignition keys are necessary.
[NATS ignition key/IMMU/ECM/Dongle unit]
SELF-DIAG RESULTS Detected items (screen terms) are as shown in the chart EL-391.
NOTE:
When any initialization is performed, all ID previously reg-
istered will be erased and all NATS ignition keys must be
registered again.
The engine cannot be started with an unregistered key. In this
case, the system may show “DIFFERENCE OF KEY” or
“LOCK MODE” as a self-diagnostic result on the CONSULT-II
screen.
When initialization is performed for RHD models for Europe,
security indicator will flash six times to demonstrate recognition
of the dongle unit ID.
In rare case, “CHAIN OF ECM-IMMU” might be stored as a
self-diagnostic result during key registration procedure, even if
the system is not malfunctioning.
HOW TO READ SELF-DIAGNOSTIC RESULTSNJEL0410S03
SEL151X
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NATS (NISSAN ANTI-THEFT SYSTEM)
CONSULT-II (Cont’d)
EL-391

NATS SELF-DIAGNOSTIC RESULTS ITEM CHART=NJEL0410S04
Detected items (NATS program card
screen terms)P No. Code
(Self-diag-
nostic result
of “ENGINE”Malfunction is detected when .....
Reference page
ECM INT CIRC-IMMUNATS MAL-
FUNCTION
P1613The malfunction of ECM internal circuit of IMMU com-
munication line is detected. EL-415
CHAIN OF ECM-IMMUNATS MAL-
FUNCTION
P1612Communication impossible between ECM and IMMU
(In rare case, “CHAIN OF ECM-IMMU” might be stored
during key registration procedure, even if the system is
not malfunctioning.) EL-397 (QG & YD w/o c.r.) EL-416 (K9K & YD w c.r.)
DIFFERENCE OF KEYNATS MAL-
FUNCTION
P1615IMMU can receive the key ID signal but the result of ID
verification between key ID and IMMU is NG. EL-420
CHAIN OF IMMU-KEYNATS MAL-
FUNCTION
P1614IMMU cannot receive the key ID signal.
EL-421
ID DISCORD, IMM-ECMNATS MAL-
FUNCTION
P1611The result of ID verification between IMMU and ECM is
NG. System initialization is required. EL-423
LOCK MODENATS MAL-
FUNCTION
P1610When the starting operation is carried out five or more
times consecutively under the following conditions,
NATS will shift the mode to one which prevents the
engine from being started.
Unregistered ignition key is used.
IMMU or ECM’s malfunctioning.EL-426
DON’T ERASE BEFORE
CHECKING ENG DIAG—All engine trouble codes except NATS trouble code has
been detected in ECM.EL-412
NATS (NISSAN ANTI-THEFT SYSTEM)
CONSULT-II (Cont’d)
EL-392

First perform the “SELF-DIAG RESULTS” in “SMART ENTRANCE”
with CONSULT-II, when perform the each trouble diagnosis. Refer
to EL-390, “CONSULT-II INSPECTION PROCEDURE”.
SYMPTOM MATRIX CHART 1NJEL0590S02Self-diagnosis related item
SYMPTOMDisplayed “SELF-DIAG
RESULTS” on CON-
SULT-II screen.DIAGNOSTIC PROCE-
DURE
(Reference page)SYSTEM
(Malfunctioning part or
mode)REFERENCE PART
NO. OF ILLUSTRATION
ON SYSTEM DIAGRAM
Security indicator
lighting up*
Engine cannot be
startedECM INT CIRC-IMMUPROCEDURE 1
(EL-396, “Diagnostic
Procedure 1”)ECM B
CHAIN OF ECM-IMMUPROCEDURE 2
(EL-397, “Diagnostic
Procedure 2”)In rare case, “CHAIN
OF ECM-IMMU” might
be stored during key
registration procedure,
even if the system is not
malfunctioning.—
Open circuit in battery
voltage line of IMMU
circuitC1
Open circuit in ignition
line of IMMU circuitC2
Open circuit in ground
line of IMMU circuitC3
Open circuit in commu-
nication line between
IMMU and ECMC4
Short circuit between
IMMU and ECM com-
munication line and bat-
tery voltage lineC4
Short circuit between
IMMU and ECM com-
munication line and
ground lineC4
ECM B
IMMU A
DIFFERENCE OF KEYPROCEDURE 3
(EL-399, “Diagnostic
Procedure 3”)Unregistered key D
IMMU A
NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-394

SYMPTOMDisplayed “SELF-DIAG
RESULTS” on CON-
SULT-II screen.DIAGNOSTIC PROCE-
DURE
(Reference page)SYSTEM
(Malfunctioning part or
mode)REFERENCE PART
NO. OF ILLUSTRATION
ON SYSTEM DIAGRAM
Security indicator
lighting up*
Engine cannot be
started
CHAIN OF IMMU-KEYPROCEDURE 4
(EL-400, “Diagnostic
Procedure 4”)Malfunction of key ID
chipE5
Communication line
between ANT/ AMP and
IMMU:
Open circuit or short
circuit of battery voltage
line or ground lineE1
E2
Open circuit in power
source line of ANT/ AMP
circuitE3
Open circuit in ground
line of ANT/ AMP circuitE4
Antenna amp. E6
Dongle unit G
IMMU A
ID DISCORD, IMM-ECMPROCEDURE 5
(EL-403, “Diagnostic
Procedure 5”)System initialization has
not yet been completed.F
ECM B
LOCK MODEPROCEDURE 7
(EL-406, “Diagnostic
Procedure 7”)LOCK MODE D
Security indicator light-
ing up*DON’T ERASE
BEFORE CHECKING
ENG DIAGWORK FLOW
(EL-393, “Work Flow”)Engine trouble data and
NATS trouble data have
been detected in ECM—
*: When NATS detects trouble, the security indicator lights up while ignition key is in the “ON” position.
SYMPTOM MATRIX CHART 2NJEL0590S03Non self-diagnosis related item
SYMPTOMDIAGNOSTIC PROCEDURE
(Reference page)SYSTEM
(Malfunctioning part or mode)REFERENCE PART NO. OF
ILLUSTRATION ON SYSTEM
DIAGRAM
Security ind. does not light up.PROCEDURE 6
(EL-404, “Diagnostic Proce-
dure 6”)Security ind. —
Open circuit between Fuse and
IMMU—
Continuation of initialization
mode—
IMMU A
Security ind. does not blink just
after initialization even if the
vehicle is equipped with dongle
unit.PROCEDURE 8
(EL-407, “RHD models only:
Diagnostic Procedure 8”)NATS might be initialized with-
out connecting dongle unit
properly.—
Security ind. does not blink just
after ignition switch is turned to
ON when some malfunction
related to NATS is detected
even if the vehicle is equipped
with dongle unit.Open circuit in ground line of
dongle unit circuitC6
Open or short circuit in com-
munication line between IMMU
and dongle unitC5
Dongle unit G
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NATS (NISSAN ANTI-THEFT SYSTEM)
Trouble Diagnoses/QG and YD Engine Models with Common Rail (Cont’d)
EL-395