Nissan Frontier. Instruction — part 673
P1217 ENGINE OVER TEMPERATURE
EC-1263
< DTC/CIRCUIT DIAGNOSIS >
[VQ40DE FOR MEXICO]
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P1217 ENGINE OVER TEMPERATURE
On Board Diagnosis Logic
INFOID:0000000009481920
NOTE:
• If DTC P1217 is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX.
• If DTC P1217 is displayed with DTC P0607, first perform the trouble diagnosis for DTC P0607. Refer
.
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.
CAUTION:
When a malfunction is indicated, always replace the coolant. Refer to
. Also, replace the engine oil. Refer to
.
1. Fill radiator with coolant up to specified level with a filling speed of 2 liters per minute. Always use
coolant with the proper mixture ratio. Refer to
MA-16, "FOR USA AND CANADA : Fluids and Lubri-
(for United States and Canada) or
MA-18, "FOR MEXICO : Fluids and Lubricants"
(for Mex-
ico).
2. After refilling coolant, run engine to ensure that no water-flow noise is emitted.
Overall Function Check
INFOID:0000000009481921
Use this procedure to check the overall function of the cooling fan. During this check, a DTC might not be con-
firmed.
WARNING:
Never remove the radiator cap and/or reservoir tank cap when the engine is hot. Serious burns could
be caused by high pressure fluid escaping from the radiator and/or reservoir tank.
Wrap a thick cloth around cap. Carefully remove the cap by turning it a quarter turn to allow built-up
pressure to escape. Then turn the cap all the way off.
WITH CONSULT
1. Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is below
the proper range, skip the following steps and go to
2. Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to
3. Turn ignition switch ON.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P1217
1217
Engine over tempera-
ture (Overheat)
• Cooling fan does not operate properly (Over-
heat).
• Cooling fan system does not operate proper-
ly (Overheat).
• Engine coolant level was not added to the
system using the proper filling method.
• Engine coolant is not within the specified
range.
• Harness or connectors
(The cooling fan circuit is open or short-
ed.)
• IPDM E/R
• Cooling fan
• Cooling fan (Crankshaft driven)
• Radiator hose
• Radiator
• Radiator cap
• Reservoir tank
• Reservoir tank cap
• Water pump
• Thermostat
For more information, refer to
"Main 12 Causes of Overheating"
SEF621W
EC-1264
< DTC/CIRCUIT DIAGNOSIS >
[VQ40DE FOR MEXICO]
P1217 ENGINE OVER TEMPERATURE
4. Perform “COOLING FAN” in “ACTIVE TEST” mode with CONSULT.
5. If the results are NG, go to
EC-1264, "Diagnosis Procedure"
.
WITH GST
1. Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is below
the proper range, skip the following steps and go to
2. Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to
3. Perform IPDM E/R auto active test and check cooling fan motor
PCS-9, "Diagnosis Description"
.
4. If NG, go to
EC-1264, "Diagnosis Procedure"
Diagnosis Procedure
INFOID:0000000009481922
1.
CHECK COOLING FAN (CRANKSHAFT DRIVEN) OPERATION
1. Start engine and let it idle.
2. Make sure that cooling fan (crankshaft driven) operates normally.
OK or NG
OK (With CONSULT)>>GO TO 2.
OK (Without CONSULT)>>GO TO 3.
NG
>> Check cooling fan (crankshaft driven). Refer to
CO-47, "Removal and Installation (Crankshaft
2.
CHECK COOLING FAN OPERATION
With CONSULT
1. Start engine and let it idle.
2. Select “COOLING FAN” in “ACTIVE TEST” mode with CONSULT.
3. Make sure that cooling fan operates at each speed (LOW/HI).
OK or NG
OK
>> GO TO 4.
NG
>> Check cooling fan control circuit. (Refer to "PROCEDURE A".)
3.
CHECK COOLING FAN OPERATION
Without CONSULT
1. Perform IPDM E/R auto active test and check cooling fan motors operation, refer to
.
2. Make sure that cooling fan operates at each speed (Low/High).
OK or NG
OK
>> GO TO 4.
NG
>> Check cooling fan control circuit. (Refer to "PROCEDURE A".)
4.
CHECK COOLING SYSTEM FOR LEAK
OK or NG
OK
>> GO TO 5.
NG
>> Check the following for leak. Refer to
.
• Hose
• Radiator
• Radiator cap
• Reservoir tank
• Water pump
5.
CHECK RESERVOIR TANK CAP
SEF621W
P1217 ENGINE OVER TEMPERATURE
EC-1265
< DTC/CIRCUIT DIAGNOSIS >
[VQ40DE FOR MEXICO]
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OK or NG
OK
>> GO TO 6.
NG
>> Replace reservoir tank cap.
6.
CHECK COMPONENT PARTS
Check the following
• Thermostat. Refer to
CO-55, "Removal and Installation"
• Engine coolant temperature sensor. Refer to
EC-1120, "Component Inspection"
.
OK or NG
OK
>> GO TO 7.
NG
>> Replace malfunctioning component.
7.
CHECK MAIN 12 CAUSES
If the cause cannot be isolated, go to
EC-1265, "Main 12 Causes of Overheating"
>> INSPECTION END
Main 12 Causes of Overheating
INFOID:0000000009481923
*1: Turn the ignition switch ON.
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
CO-40, "Changing Engine Coolant"
3
• Coolant level
• Visual
Coolant up to MAX level in
reservoir tank and radiator
filler neck
CO-40, "Changing Engine
Coolant"
4
• Reservoir tank cap
• Pressure tester
59 - 98 kPa
(0.6 - 1.0 kg/cm
2
, 9 - 14
psi) (Limit)
ON*
2
5
• Coolant leaks
• Visual
No leaks
ON*
2
6
• Thermostat
• Touch the upper and
lower radiator hoses
Both hoses should be hot
CO-55, "Removal and In-
stallation"
ON*
1
7
• Cooling fan
• CONSULT
Operating
See trouble diagnosis for
DTC P1217 (
ON*
2
7
• Cooling fan (Crankshaft
driven)
• Visual
Operating
See
and Installation (Crank-
shaft driven type)"
OFF
8
• Combustion gas leak
• Color checker chemical
tester 4 Gas analyzer
Negative
—
ON*
3
9
• Coolant temperature
gauge
• Visual
Gauge less than 3/4 when
driving
—
• Coolant overflow to res-
ervoir tank
• Visual
No overflow during driving
and idling
CO-40, "Changing Engine
Coolant"
OFF*
4
10
• Coolant return from res-
ervoir tank to radiator
• Visual
Should be initial level in
reservoir tank
CO-40, "Changing Engine
Coolant"
OFF
11
• Cylinder head
• Straight gauge feeler
gauge
0.1 mm (0.004 in) Maxi-
mum distortion (warping)
EM-211, "Inspection After
Disassembly"
12
• Cylinder block and pis-
tons
• Visual
No scuffing on cylinder
walls or piston
EC-1266
< DTC/CIRCUIT DIAGNOSIS >
[VQ40DE FOR MEXICO]
P1217 ENGINE OVER TEMPERATURE
*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
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