2003 NISSAN ALMERA N16 flow

TERMI-
NAL
NO.WIRE
COLORITEM CONDITION DATA(DC Voltage)
221 LG/B Cooling fan relay (High)[Engine is running]
Cooling fans are not operating
Cooling fans are operating at low speedBATTERY VOLTAGE
(11 - 14V)
[Engine is running]
Cooling fans are operating at high speedApproximately 0.1V
On Board Diagnosis LogicNJEC0663This diagnosis continuously monitors the engine coolant temperature.
If the cooling fan or another component in the cooling system malfunctions, engine coolant temperature will
rise.
When the engine coolant temperature reaches an abnormally high temperature condition, a malfunction is
indicated.
This self-diagnosis has the one trip detection logic.
DTC Malfunction is detected when ... Check Items (Possible Cause)
P1217
0208Cooling fan does not operate properly (Overheat).
Cooling fan system does not operate properly
(Overheat).
Engine coolant was not added to the system using
the proper filling method.Harness or connectors
(The cooling fan circuit is open or shorted.)
Cooling fan
Radiator hose
Radiator
Radiator cap
Water pump
Thermostat
Engine coolant temperature sensor
For more information, refer to “MAIN 12 CAUSES OF
OVERHEATING”, EC-144.
CAUTION:
When a malfunction is indicated, be sure to replace the coolant following the procedure in the LC-43,
“Changing Engine Coolant”. Also, replace the engine oil.
1) Fill radiator with coolant up to specified level with a filling speed of 2liters per minute. Be sure
to use coolant with the proper mixture ratio. Refer to MA-21, “Engine Coolant Mixture Ratio”.
2) After refilling coolant, run engine to ensure that no water-flow noise is emitted.
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DTC P1217 OVER HEATYD
ECM Terminals and Reference Value (Cont’d)
EC-131

9 CHECK INTERMITTENT INCIDENT
1. Perform “TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT”, EC-71.
INSPECTION END
Main 12 Causes of OverheatingNJEC0667
Engine Step Inspection item Equipment Condition Reference page
OFF 1 Blocked radiator
Blocked radiator grille
Blocked bumperVisual No blocking —
2 Coolant mixture Coolant tester 50 - 50% coolant mixture See MA-19, “RECOM-
MENDED FLUIDS AND
LUBRICANTS”.
3 Coolant level Visual Coolant up to MAX level
in reservoir tank and
radiator filler neckSee LC-17, “Changing
Engine Coolant”.
4 Radiator cap Pressure tester 78 - 98 kPa
(0.78 - 0.98 bar, 0.8 - 1.0
kg/cm
2, 11 - 14 psi)See LC-37, “System
Check”.
ON*
25 Coolant leaks Visual No leaks See LC-37, “System
Check”.
ON*
26 Thermostat Touch the upper and
lower radiator hosesBoth hoses should be
hotSee LC-40, “Thermostat”
and “Radiator”.
ON*
17 Cooling fan CONSULT-II Operating See Trouble Diagnosis
for DTC P1217, EC-130.
OFF 8 Combustion gas leak Color checker chemi-
cal tester 4 Gas ana-
lyzerNegative —
ON*
39 Coolant temperature
gaugeVisual Gauge less than 3/4
when driving—
Coolant overflow to
reservoir tankVisual No overflow during driv-
ing and idlingSee LC-43, “Changing
Engine Coolant”.
OFF*
410 Coolant return from
reservoir tank to radia-
torVisual Should be initial level in
reservoir tankSee LC-43, “REFILLING
ENGINE COOLANT”.
OFF 11 Cylinder head Straight gauge feeler
gauge0.1mm (0.004 in) Maxi-
mum distortion (warping)See EM-48, “Inspection”.
12 Cylinder block and pis-
tonsVisual No scuffing on cylinder
walls or pistonSee EM-70, “Inspection”.
*1: Turn the ignition switch ON.
*2: Engine running at 3,000 rpm for 10 minutes.
*3: Drive at 90 km/h (55 MPH) for 30 minutes and then let idle for 10 minutes.
*4: After 60 minutes of cool down time.
For more information, refer to LC-46, “OVERHEATING CAUSE ANALYSIS”.
DTC P1217 OVER HEATYD
Diagnostic Procedure (Cont’d)
EC-144

DescriptionNJEC0760SYSTEM DESCRIPTIONNJEC0760S01
Sensor Input Signal to ECMECM
Func-
tionActuator
Crankshaft position sensor
(TDC)Engine speed
Glow
controlGlow lamp,
Glow relay
"
Glow plugs Engine coolant tempera-
ture sensorEngine coolant tem-
perature
When engine coolant temperature is more than approximately
75°C (167°F), the glow relay turns off.
When coolant temperature is lower than approximately 75°C
(167°F):
Ignition switch ON
After ignition switch has turned to ON, the glow relay turns ON
for a certain period of time in relation to engine coolant
temperature, allowing current to flow through glow plug.
Cranking
The glow relay turns ON, allowing current to flow through glow
plug.
Starting
After engine has started, current continues to flow through
glow plug (after-glow mode) for a certain period in relation to
engine coolant temperature.
The glow indicator lamp turns ON for a certain period of time in
relation to engine cooalnt temperature at the time glow relay is
turned ON.
SEF376Y
COMPONENT DESCRIPTIONNJEC0760S02Glow PlugNJEC0760S0201The glow plug is provided with a ceramic heating element to obtain
a high-temperature resistance. It glows in response to a signal sent
from the ECM, allowing current to flow through the glow plug via
the glow relay.
GLOW CONTROL SYSTEMYD
Description
EC-188

DescriptionNJEC0764SYSTEM DESCRIPTIONNJEC0764S01
Sensor Input Signal to ECM ECM Function Actuator
Electronic controlled fuel injection pump Fuel injection signal
EGR volume con-
trolEGR volume control
valve Crankshaft position sensor (TDC) Engine speed
Vehicle speed sensor Vehicle speed
Engine coolant temperature sensor Engine coolant temperature
Ignition switch Start signal
Accelerator position sensor Accelerator position
Mass air flow sensor Amount of intake air
Air conditioner switch Air conditioner operation
Electrical load Electrical load signal
This system controls flow rate of EGR led from exhaust manifold
to intake manifold. The opening of the EGR by-pass passage in the
EGR volume control valve changes to control the flow rate. A
built-in step motor moves the valve in steps corresponding to the
ECM output pulses. The opening of the valve varies for optimum
engine control. The optimum value stored in the ECM is determined
by considering various engine conditions.
The EGR volume control valve remains close under the following
conditions.
Engine stopped
Engine starting
Low engine coolant temperature
Excessively high engine coolant temperature
High engine speed
Wide open throttle
SEF908Y
SEF411Y
COMPONENT DESCRIPTIONNJEC0764S02EGR Volume Control ValveNJEC0764S0201The EGR volume control valve uses a step motor to control the flow
rate of EGR from exhaust manifold. This motor has four winding
phases. It operates according to the output pulse signal of the
ECM. Two windings are turned ON and OFF in sequence. Each
time an ON pulse is issued, the valve opens or closes, changing
the flow rate. When no change in the flow rate is needed, the ECM
does not issue the pulse signal. A certain voltage signal is issued
so that the valve remains at that particular opening.
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EGR VOLUME CONTROL SYSTEMYD
Description
EC-197

PBIC0648E
7. Disconnect electrical connector.
8. Disconnect the quick connector as follows.
a. Put mating marks on tubes and connectors for correct instal-
lation.
PBIC0709E
b. Hold the connector while pushing in buttons, and pull out the
tube.
CAUTION:
The tube can be removed when the buttons are completely
depressed. Do not twist it more than necessary.
Do not use any tools to remove the quick connector.
Keep the resin tube away from heat. Be especially careful
when welding near the tube.
Prevent acid liquid such as battery electrolyte etc. from
getting on the resin tube.
Do not bend or twist the tube during installation and
removal.
PBIC0713E
To keep clean the connecting portion and to avoid damage
and foreign materials, cover them completely with plastic
bags or something similar.
SFE650A
9. From rear left area of fuel tank, remove filler hose, vent hose,
and VEEP hose.
CAUTION:
To prevent fuel from flowing out, install a blind cap immedi-
ately after the fuel hose is disconnected.
FUEL SYSTEMQG
Fuel Tank (Cont’d)
FE-6

JEM238G
Bleeding Fuel FilterNJFE00231. After the repair, bleed air from the piping by pumping the prim-
ing pump up and down until it becomes heavy.
2. To start the engine, rotate the starter for a maximum of 30
seconds.
To start the engine more quickly, crank the engine while pump-
ing the priming pump (requires two workers).
3. If the engine does not start after rotating the starter for a maxi-
mum of 30 seconds, stop it once, and pump the priming pump
again until it becomes heavy.
4. Rotate the starter again until the engine starts running.
5. After the engine starts, let it idle for at least 1 minute to stabi-
lize the behavior.
NOTE:
When air is bled completely, pumping the priming pump sud-
denly becomes heavy.
Stop the operation at that time.
If it is difficult to bleed air by pumping the priming pump (the
priming pump does not become heavy during pumping), dis-
connect the fuel supply hose between the fuel filter and the
injection pump. Then, pump the priming pump up and down,
and make sure that fuel comes out. (Use a pan and be care-
ful not to spill fuel. Keep fuel clear of the engine.) After that,
connect the hose, then bleed air again.
DEF017
Checking Priming PumpNJFE0024Before checking priming pump, make sure that fuel filter is
filled with fuel.
1. Disconnect fuel return hose.
Place a suitable container beneath hose end.
2. Pump priming pump and check that the fuel overflows from the
hose end. If not, replace priming pump.
Removal and InstallationNJFE0015WARNING:
When replacing fuel line parts, be sure to observe the following.
Put a “CAUTION: FLAMMABLE” sign in workshop.
Be sure to furnish workshop with a CO
2fire extinguisher.
Do not smoke while servicing fuel system. Keep open flames and sparks away from work area.
CAUTION:
Before removing fuel line parts, carry out the following procedures:
a) Put drained fuel in an explosion-proof container and put the lid on securely.
b) Disconnect battery ground cable.
FUEL SYSTEMYD
Bleeding Fuel Filter
FE-16

SFE602A
8. Remove exhaust center tube.
9. From rear left area of fuel tank, remove filler hose, vent hose,
and EVAP hose.
CAUTION:
To prevent fuel from flowing out, install a blind cap immedi-
ately after the fuel hose is disconnected.
JFE610A
10. Set a suitable transmission jack under fuel tank.
11. Remove fuel tank mounting band bolts while supporting fuel
tank.
JFE611A
12. Lower the fuel tank by 70 to 80 mm (2.76 to 3.15 in), remove
the nuts and clips holding the protector, and then remove the
protector.
To remove the clips, use pliers to squeeze the extensions as
shown by the arrows in the figure at left, and then remove the
clip from above.
13. Remove fuel tank.
FUEL SYSTEMYD
Fuel Tank (Cont’d)
FE-20

JFE613A
SFE639A
SFE640A
For HatchbackNJFE0016S01021. Disconnect battery ground cable.
2. Open fuel filler lid and filler cap.
3. Drain fuel from fuel tank.
4. Remove rear seat cushion. Refer to BT-59, “Removal and
Installation”.
5. Remove inspection hole cover under the rear seat.
6. Disconnect electrical connector.
7. Disconnect the quick connector as follows.
a. Put mating marks on tubes and connectors for correct instal-
lation.
SFE562A
b. Hold the connector while pushing in tabs, and pull out the tube.
CAUTION:
The tube can be removed when the tabs are completely
depressed. Do not twist it more than necessary.
Do not use any tools to remove the quick connector.
Keep the resin tube away from heat. Be especially careful
when welding near the tube.
Prevent acid liquid such as battery electrolyte etc. from
getting on the resin tube.
Do not bend or twist the tube during installation and
removal.
SFE641A
8. From rear left area of fuel tank, remove filler hose, vent hose,
and EVAP hose.
CAUTION:
To prevent fuel from flowing out, install a blind cap immedi-
ately after the fuel hose is disconnected.
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FUEL SYSTEMYD
Fuel Tank (Cont’d)
FE-21