Infiniti M35/M45 Y50. Manual - part 507

DTC P1217 ENGINE OVER TEMPERATURE

EC-501

[VQ35DE]

C

D

E

F

G

H

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EC

 WITH CONSULT-II

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 

EC-504,

"Diagnostic Procedure"

 .

2.

Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to 

EC-504,

"Diagnostic Procedure"

 .

3.

Turn ignition switch ON.

4.

Perform “FAN DUTY CONTROL” in “ACTIVE TEST” mode with
CONSULT-II.

5.

Make sure that cooling fan speed varies according to the per-
cent.

6.

If the results are NG, go to 

EC-504, "Diagnostic 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 

EC-504,

"Diagnostic Procedure"

 .

2.

Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to 

EC-504,

"Diagnostic Procedure"

 .

3.

Perform IPDM E/R auto active test and check cooling fan motors
operation, refer to 

PG-23, "Auto Active Test"

 .

4.

If NG, go to 

EC-504, "Diagnostic Procedure"

 .

SEF621W

PBIB2737E

SEF621W

EC-502

[VQ35DE]

DTC P1217 ENGINE OVER TEMPERATURE

Wiring Diagram

NBS00536

TBWT1533E

DTC P1217 ENGINE OVER TEMPERATURE

EC-503

[VQ35DE]

C

D

E

F

G

H

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J

K

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M

A

EC

TBWT1478E

EC-504

[VQ35DE]

DTC P1217 ENGINE OVER TEMPERATURE

Diagnostic Procedure

NBS00537

1. 

CHECK COOLING FAN OPERATION

 With CONSULT-II

1.

Turn ignition switch ON.

2.

Perform “FAN DUTY CONTROL” in “ACTIVE TEST” mode with
CONSULT-II.

3.

Make sure that cooling fan speed varies according to the per-
cent.

 Without CONSULT-II

1.

Perform IPDM E/R auto active test and check cooling fan motors
operation, refer to 

PG-23, "Auto Active Test"

 .

2.

Make sure that cooling fan operates.

OK or NG

OK

>> GO TO 2.

NG

>> GO TO 5.

2. 

CHECK COOLING SYSTEM FOR LEAK

Refer to 

CO-11, "LEAK CHECK"

OK or NG

OK

>> GO TO 3.

NG

>> Check the following for leak.

●

Hose

●

Radiator

●

Water pump

3. 

CHECK COMPONENT PARTS

Check the following.

●

Radiator cap. Refer to 

CO-16, "Checking Radiator Cap"

 .

●

Thermostat. Refer to 

CO-29, "WATER INLET AND THERMOSTAT ASSEMBLY"

 .

●

Engine coolant temperature sensor. Refer to 

EC-218, "Component Inspection"

 .

OK or NG

OK

>> GO TO 4.

NG

>> Replace malfunctioning component.

4. 

CHECK MAIN 12 CAUSES

If the cause cannot be isolated, go to 

EC-507, "Main 12 Causes of Overheating"

 .

>> INSPECTION END

PBIB2737E