Infiniti M35/M45 Y50. Manual - part 508

 

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Infiniti M35/M45 Y50. Manual - part 508

 

 

DTC P1217 ENGINE OVER TEMPERATURE

EC-505

[VQ35DE]

C

D

E

F

G

H

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J

K

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M

A

EC

5. 

CHECK COOLING FAN CONTROL MODULE POWER SUPPLY CIRCUIT-I

1.

Turn ignition switch OFF.

2.

Disconnect cooling fan control module (1) harness connector
E42.

–

: Vehicle front

–

Cooling fan motor-1 (2)

–

Cooling fan motor-2 (3)

3.

Turn ignition switch ON.

4.

Check voltage between cooling fan control module terminal 3
and ground with CONSULT-II or tester.

OK or NG

OK

>> GO TO 6.

NG

>> GO TO 11.

6. 

CHECK COOLING FAN CONTROL MODULE GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check harness continuity between cooling fan control module terminal 1 and ground.
Refer to wiring diagram.

3.

Also check harness for short to power.

OK or NG

OK

>> GO TO 7.

NG

>> Repair open circuit or short to power in harness or connectors.

7. 

CHECK IPDM E/R GROUND CIRCUIT

1.

Disconnect IPDM E/R harness connector E8, E9.

2.

Check harness continuity between IPDM E/R terminal 38, 51 and ground.
Refer to wiring diagram.

3.

Also check harness for short to power.

OK or NG

OK

>> GO TO 8.

NG

>> Repair open circuit or short to power in harness or connectors.

PBIB3352E

Voltage: Battery voltage

PBIA9509J

Continuity should exist.

Continuity should exist.

EC-506

[VQ35DE]

DTC P1217 ENGINE OVER TEMPERATURE

8. 

CHECK COOLING FAN CONTROL SIGNAL CIRCUIT

1.

Check harness continuity between IPDM E/R terminal 59 and cooling fan control module terminal 2.
Refer to wiring diagram.

2.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 9.

NG

>> Repair open circuit or short to ground or short to power in harness or connectors.

9. 

CHECK COOLING FAN CONTROL MODULE OUTPUT SIGNAL CIRCUIT

1.

Reconnect all harness connectors disconnected.

2.

Disconnect cooling fan control module harness connectors E301, E303.

3.

Turn ignition switch ON.

4.

Check voltage between cooling fan control module terminals 4,
6 and ground with CONSULT-II or tester.

OK or NG

OK

>> GO TO 10.

NG

>> Replace cooling fan control module.

10. 

CHECK COOLING FAN MOTORS -1 AND -2

Refer to 

EC-509, "Component Inspection"

 .

OK or NG

OK

>> GO TO 15.

NG

>> Replace cooling fan motor.

11. 

CHECK COOLING FAN CONTROL MODULE POWER SUPPLY CIRCUIT-II

1.

Turn ignition switch OFF.

2.

Disconnect cooling fan relay harness connector.

3.

Turn ignition switch ON.

4.

Check voltage between cooling fan relay terminals 1, 3 and
ground with CONSULT-II or tester.

OK or NG

OK

>> GO TO 13.

NG

>> GO TO 12.

Continuity should exist.

Voltage: Battery voltage

PBID0261J

Voltage: Battery voltage

PBIA9511J

DTC P1217 ENGINE OVER TEMPERATURE

EC-507

[VQ35DE]

C

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EC

12. 

DETECT MALFUNCTIONING PART

Check the following.

●

10A fuse

●

Fuse block (J/B) connector E102

●

50A fusible link

●

Harness for open or short between cooling fan relay and fuse

●

Harness for open or short between cooling fan relay and battery

>> Repair open circuit or short to ground or short to power in harness or connectors.

13. 

CHECK COOLING FAN CONTROL MODULE POWER SUPPLY CIRCUIT-III

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R harness connector E9.

3.

Check harness continuity between the following;
Cooling fan relay terminal 2 and IPDM E/R terminal 56,
Cooling fan relay terminal 5 and cooling fan control module terminal 3.
Refer to wiring diagram.

4.

Also check harness for short to ground and short to power.

OK or NG

OK

>> GO TO 14.

NG

>> Repair open circuit or short to ground or short to power in harness or connectors.

14. 

CHECK COOLING FAN RELAY

Refer to 

EC-509, "Component Inspection"

 .

OK or NG

OK

>> GO TO 15.

NG

>> Replace cooling fan relay.

15. 

CHECK INTERMITTENT INCIDENT

Perform 

EC-153, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"

 .

OK or NG

OK

>> Replace IPDM E/R. Refer to 

PG-18, "IPDM E/R (INTELLIGENT POWER DISTRIBUTION MOD-

ULE ENGINE ROOM)"

 .

NG

>> Repair or replace harness connectors.

Main 12 Causes of Overheating

NBS00538

Continuity should exist.

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

MA-13, "Anti-Freeze 
Coolant Mixture Ratio"

3

●

Coolant level

●

Visual

Coolant up to MAX level 
in reservoir tank and radi-
ator filler neck

MA-15, "Changing 
Engine Coolant"

4

●

Radiator cap

●

Pressure tester

59 - 98 kPa

(0.6 - 1.0 kg/cm

2

 , 9 - 14 

psi) (Limit)

CO-16, "Checking Radia-
tor Cap"

EC-508

[VQ35DE]

DTC P1217 ENGINE OVER TEMPERATURE

*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-7, "OVERHEATING CAUSE ANALYSIS"

 .

ON*

2

5

●

Coolant leaks

●

Visual

No leaks

CO-11, "LEAK CHECK"

ON*

2

6

●

Thermostat

●

Touch the upper and 
lower radiator hoses

Both hoses should be hot

CO-29, "WATER INLET 
AND THERMOSTAT 
ASSEMBLY"

ON*

1

7

●

Cooling fan

●

CONSULT-II

Operating

See trouble diagnosis for 
DTC P1217 (

EC-499

 ).

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 
reservoir tank

●

Visual

No overflow during driving 
and idling

MA-15, "Changing 
Engine Coolant"

OFF*

4

10

●

Coolant return from 
reservoir tank to radia-
tor

●

Visual

Should be initial level in 
reservoir tank

MA-15, "Changing 
Engine Coolant"

OFF

11

●

Cylinder head

●

Straight gauge feeler 
gauge

0.1 mm (0.004 in) Maxi-
mum distortion (warping)

EM-102, "CYLINDER 
HEAD"

12

●

Cylinder block and pis-
tons

●

Visual

No scuffing on cylinder 
walls or piston

EM-124, "CYLINDER 
BLOCK"

Engine

Step

Inspection item

Equipment

Standard

Reference page

 

 

 

 

 

 

 

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