Nissan Frontier D22. Manual — part 335
DTC P1217 ENGINE OVER TEMPERATURE
EC-443
[KA24DE]
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EC
Diagnostic Procedure
UBS00DAO
1.
CHECK COOLING SYSTEM FOR LEAK
Apply pressure to the cooling system with a tester, and check if the
pressure drops.
CAUTION:
Higher than the specified pressure may cause radiator damage.
Pressure should not drop.
OK or NG
OK
>> GO TO 2.
NG
>> Check the following for leak.
●
Hose
●
Radiator
●
Water pump
Refer to
2.
CHECK RADIATOR CAP
Apply pressure to cap with a tester.
OK or NG
OK
>> GO TO 3.
NG
>> Replace radiator cap.
3.
CHECK THERMOSTAT
1.
Check valve seating condition at normal room temperatures.
It should seat tightly.
2.
Check valve opening temperature and valve lift.
3.
Check if valve is closed at 5
°C (9°F) below valve opening tem-
perature.
OK or NG
OK
>> GO TO 4.
NG
>> Replace thermostat.
Testing pressure
: 157 kPa (1.6 kg/cm
2
, 23 psi)
SLC754A
Radiator cap relief
pressure
: 78 - 98 kPa
(0.8 - 1.0 kg/cm
2
, 11 - 14 psi)
SLC755A
Valve opening tempera-
ture
: 76.5
°C (170°F) [standard]
Valve lift
: More than 8 mm/90
°C
(0.31 in/194
°F)
SLC343
EC-444
[KA24DE]
DTC P1217 ENGINE OVER TEMPERATURE
4.
CHECK ENGINE COOLANT TEMPERATURE SENSOR
Check resistance as shown in the figure.
<Reference data>
OK or NG
OK
>> GO TO 5.
NG
>> Replace engine coolant temperature sensor.
5.
CHECK MAIN 11 CAUSES
If the cause cannot be isolated, go to
EC-444, "Main 11 Causes of Overheating"
>> INSPECTION END
Perform FINAL CHECK by the following procedure after repair is completed.
1.
Warm up engine. Run the vehicle for at least 20 minutes. Pay attention to engine coolant temperature
gauge on the instrument panel. If the reading shows an abnormally high temperature, another part may be
malfunctioning.
2.
Stop vehicle and let engine idle. Check the intake and exhaust systems for leaks by listening for noise or
visually inspecting the components.
3.
Allow engine to cool and visually check for oil and coolant leaks. Then, perform “Overall Function Check”.
Main 11 Causes of Overheating
UBS00DAP
SEF152P
Temperature
°C (°F)
Resistance k
Ω
20 (68)
2.1 - 2.9
50 (122)
0.68 - 1.00
90 (194)
0.236 - 0.260
SEF012P
Engine
Step
Inspection item
Equipment
Standard
Reference page
OFF
1
●
Blocked radiator
●
Blocked condenser
●
Blocked radiator grille
●
Blocked bumper
●
Visual
No blocking
—
2
●
Coolant mixture
●
Coolant tester
50 - 50% coolant mixture
See
mended Fluids and Lubri-
cants"
3
●
Coolant level
●
Visual
Coolant up to MAX level
in reservoir tank and radi-
ator filler neck
See
, “Changing
Engine Coolant”.
4
●
Radiator cap
●
Pressure tester
78 - 98 kPa (0.8 - 1.0 kg/
cm
2
, 11 - 14 psi)
59 - 98 kPa (0.6 - 1.0 kg/
cm
2
, 9 - 14 psi) (Limit)
See
DTC P1217 ENGINE OVER TEMPERATURE
EC-445
[KA24DE]
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EC
*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
CO-6, "OVERHEATING CAUSE ANALYSIS"
ON*
2
5
●
Coolant leaks
●
Visual
No leaks
See
ON*
2
6
●
Thermostat
●
Touch the upper and
lower radiator hoses
Both hoses should be hot
See
and
OFF
7
●
Combustion gas leak
●
Color checker chemi-
cal tester 4 Gas ana-
lyzer
Negative
—
ON*
3
8
●
Coolant temperature
gauge
●
Visual
Gauge less than 3/4
when driving
—
●
Coolant overflow to
reservoir tank
●
Visual
No overflow during driv-
ing and idling
See
, “Changing
Engine Coolant”.
OFF*
4
9
●
Coolant return from
reservoir tank to radia-
tor
●
Visual
Should be initial level in
reservoir tank
See
OFF
10
●
Cylinder head
●
Straight gauge feeler
gauge
0.1 mm (0.004 in) Maxi-
mum distortion (warping)
See
.
11
●
Cylinder block and pis-
tons
●
Visual
No scuffing on cylinder
walls or piston
See
Engine
Step
Inspection item
Equipment
Standard
Reference page
EC-446
[KA24DE]
DTC P1336 CKP SENSOR (OBD)
DTC P1336 CKP SENSOR (OBD)
PFP:23731
Component Description
UBS00DAQ
The crankshaft position sensor (OBD) is located on the transmission
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.
On Board Diagnosis Logic
UBS00DAR
DTC Confirmation Procedure
UBS00DAS
NOTE:
If “DTC Confirmation Procedure” has been previously conducted, always turn ignition switch OFF and wait at
least 5 seconds before conducting the next test.
WITH CONSULT-II
1.
Turn ignition switch ON and select “DATA MONITOR” mode with
CONSULT-II.
2.
Start engine and run it for at least 2 minutes at idle speed.
3.
If 1st trip DTC is detected, go to
EC-448, "Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II”.
SEF956N
SEF335V
DTC No.
Trouble Diagnosis Name
DTC Detecting Condition
Possible Cause
P1336
Crankshaft position sensor
(OBD) (COG)
●
A chipping of the flywheel or drive plate
gear tooth (cog) is detected by the ECM.
●
Harness or connectors
●
Crankshaft position sensor (OBD)
●
Drive plate/Flywheel
SEF058Y
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