Nissan Primera P11. Instruction — part 272
12
CHECK RADIATOR CAP
Apply pressure to cap with a tester.
SLC755A
Radiator cap relief pressure:
59 - 98 kPa (0.59 - 0.98 bar, 0.6 - 1.0 kg/cm
2
, 9 - 14 psi)
OK or NG
OK
©
GO TO 13.
NG
©
Replace radiator cap.
13
CHECK THERMOSTAT
1. Check valve seating condition at normal room temperatures.
It should seat tightly.
2. Check valve opening temperature and valve lift.
SLC343
Valve opening temperature:
76.5°C (170°F) [standard]
Valve lift:
More than 8 mm/90°C (0.31 in/194°F)
3. Check if valve is closed at 5°C (9°F) below valve opening temperature.
For details, refer to LC section (“Thermostat”).
OK or NG
OK
©
GO TO 14.
NG
©
Replace thermostat
14
CHECK ENGINE COOLANT TEMPERATURE SENSOR
Refer to “COMPONENT INSPECTION”, EC-SR-136.
OK or NG
OK
©
GO TO 15.
NG
©
Replace engine coolant temperature sensor.
15
CHECK MAIN 12 CAUSES
If the cause cannot be isolated, go to “MAIN 12 CAUSES OF OVERHEATING”, EC-SR-288.
©
INSPECTION END
DTC P1217 OVERHEAT (COOLING SYSTEM)
SR20DE
Diagnostic Procedure (Cont’d)
EC-287
Main 12 Causes of Overheating
NCEC0492
Engine
Step
Inspection item
Equipment
Standard
Reference page
OFF
1
I
Blocked radiator
I
Blocked condenser
I
Blocked radiator grille
I
Blocked bumper
I
Visual
No blocking
—
2
I
Coolant mixture
I
Coolant tester
50 - 50% coolant mixture
See “RECOMMENDED
FLUIDS AND LUBRI-
CANTS” in MA section.
3
I
Coolant level
I
Visual
Coolant up to MAX level in
reservoir tank and radiator
filler neck
See “Changing Engine
Coolant”, “ENGINE
MAINTENANCE” in MA
section.
4
I
Radiator cap
I
Pressure tester
59 - 98 kPa (0.59 - 0.98
bar, 0.6 - 1.0 kg/cm
2
, 9 -
14 psi) (Limit)
See “System Check”,
“ENGINE COOLING
SYSTEM” in LC section.
ON*
2
5
I
Coolant leaks
I
Visual
No leaks
See “System Check”,
“ENGINE COOLING
SYSTEM” in LC section.
ON*
2
6
I
Thermostat
I
Touch the upper and
lower radiator hoses
Both hoses should be hot
See “Thermostat” and
“Radiator”, “ENGINE
COOLING SYSTEM” in
LC section.
ON*
1
7
I
Cooling fan
I
CONSULT-II
Operating
See “TROUBLE DIAG-
NOSIS FOR OVER-
HEAT” (EC-SR-279).
OFF
8
I
Combustion gas leak
I
Color checker chemi-
cal tester 4 Gas ana-
lyzer
Negative
—
ON*
3
9
I
Coolant temperature
gauge
I
Visual
Gauge less than 3/4 when
driving
—
I
Coolant overflow to re-
servoir tank
I
Visual
No overflow during driving
and idling
See “Changing Engine
Coolant”, “ENGINE
MAINTENANCE” in MA
section.
OFF*
4
10
I
Coolant return from re-
servoir tank to radiator
I
Visual
Should be initial level in
reservoir tank
See “ENGINE MAINTE-
NANCE” in MA section.
OFF
11
I
Cylinder head
I
Straight gauge feeler
gauge
0.1 mm (0.004 in) Maxi-
mum distortion (warping)
See “Inspection”, “CYL-
INDER HEAD” in EM
section.
12
I
Cylinder block and pis-
tons
I
Visual
No scuffing on cylinder
walls or piston
See “Inspection”, “CYL-
INDER BLOCK” in EM
section.
*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 “OVERHEATING CAUSE ANALYSIS” in LC section.
DTC P1217 OVERHEAT (COOLING SYSTEM)
SR20DE
Main 12 Causes of Overheating
EC-288
Component Inspection
NCEC0493
COOLING FAN RELAYS
NCEC0493S01
Check continuity between terminals 3 and 5.
Conditions
Continuity
12V direct current supply between terminals 1 and
2
Yes
No current supply
No
If NG, replace relay.
COOLING FAN MOTORS-1 AND -2
NCEC0493S02
1.
Disconnect cooling fan motor harness connectors.
2.
Supply cooling fan motor terminals with battery voltage and
check operation.
Terminals
(+)
(−)
Cooling fan motor
1
2
Cooling fan motor should operate.
If NG, replace cooling fan motor.
REFRIGERANT PRESSURE SENSOR
NCEC0493S03
With the refrigerant pressure sensor installed on the vehicle, start
the engine and while idling, read the voltage at refrigerant pressure
sensor terminals 1 and 2. (Refer to wiring diagram.)
Air conditioner condition
Voltage V
OFF
More than approx. 0.3V
ON
More than approx. 1.5
ON to OFF
Decreasing gradually
If results are NG, check for 5V between refrigerant sensor termi-
nal 3 and ground. If there is 5V, replace sensor.
SEF511P
SEF721Q
DTC P1217 OVERHEAT (COOLING SYSTEM)
SR20DE
Component Inspection
EC-289
Component Description
NCEC0327
The crankshaft position sensor (OBD) is located on the transmis-
sion housing facing the gear teeth (cogs) of the flywheel or drive
plate. It detects the fluctuation of the engine revolution.
The sensor consists of a permanent magnet, core and coil.
When the engine is running, the high and low parts of the teeth
cause the gap with the sensor to change.
The changing gap causes the magnetic field near the sensor to
change.
Due to the changing magnetic field, the voltage from the sensor
changes.
The ECM receives the voltage signal and detects the fluctuation of
the engine revolution.
This sensor is not used to control the engine system.
It is used only for the on board diagnosis.
ECM Terminals and Reference Value
NCEC0328
Specification data are reference values and are measured between each terminal and 48 (ECM ground).
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (AC Voltage)
58
B
Sensors’ ground
[Engine is running]
I
Warm-up condition
I
Idle speed
Approximately 0V
65
W
Crankshaft position sen-
sor (OBD)
[Engine is running]
I
Warm-up condition
I
Idle speed
3 - 5V (AC range)
SEF721W
0.2 ms
[Engine is running]
I
Engine speed is 2,000 rpm
6 - 9V (AC range)
SEF722W
0.2 ms
On Board Diagnosis Logic
NCEC0329
DTC No.
Malfunction is detected when ...
Check Items (Possible Cause)
P1336
1336
I
A chipping of the flywheel or drive plate gear tooth (cog)
is detected by the ECM.
I
Harness or connectors
I
Crankshaft position sensor (OBD)
I
Drive plate/Flywheel
SEF956N
Core
Permanent magnet
Coil
SEF226X
Crankshaft position
sensor (OBD) harness connector
Cooling fan motor
(Left side)
DTC P1336 CRANKSHAFT POSITION SENSOR
(CKPS) (OBD) (COG)
SR20DE
Component Description
EC-290
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