NISSAN TEANA 2003 Service Manual

DTC P1217 ENGINE OVER TEMPERATURE
EC-219
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Cooling Fan Relay Operation
The ECM controls cooling fan relays in the IPDM E/R through CAN communication line.
COMPONENT DESCRIPTION
Cooling Fan Motor
The cooling fan operates at each speed when the current flows in the cooling fan motor as follows.
The cooling fan operates at low (LOW) speed when cooling fan motors-1 and -2 are circuited in series under
middle speed condition.
CONSULT-II Reference Value in Data Monitor ModeBBS005G8
Specification data are reference values.
On Board Diagnosis LogicBBS005G9
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.
Cooling fan speedCooling fan relay
123
Stop (OFF) OFF OFF OFF
Low (LOW) OFF ON OFF
Middle (MID) ON OFF OFF
High (HI) ON OFF ON
Cooling fan speedCooling fan motor terminals
(+) (−)
Middle (MID)1 3 and 4
2 3 and 4
1 and 2 3
1 and 2 4
High (HI) 1 and 2 3 and 4
MONITOR ITEM CONDITION SPECIFICATION
COOLING FAN

Engine: After warming up, idle the
engine

Air conditioner switch: OFFEngine coolant temperature is 94°C
(201°F) or lessOFF
Engine coolant temperature is
between 95°C (203°F) and 99°C
(210°F)LOW
Engine coolant temperature is
100°C (212°F) or moreHIGH

Engine: After warming up, idle the
engine

Air conditioner switch: ON

Refrigerant pressure is less than
1,280 kPa (12.80 bar, 13.05 kg/
cm2, 185.6 psi)Engine coolant temperature is 94°C
(201°F) or lessLOW
Engine coolant temperature is
between 95°C (203°F) and 99°C
(210°F)MID
Engine coolant temperature is
100°C (212°F) or moreHIGH

EC-220
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DTC P1217 ENGINE OVER TEMPERATURE

CAUTION:
When a malfunction is indicated, be sure to replace the coolant. Refer to CO-10, "
Changing Engine
Coolant" . Also, replace the engine oil. Refer to LU-9, "Changing Engine Oil" .
1. Fill radiator with coolant up to specified level with a filling speed of 2 liters per minute. Be sure to
use coolant with the proper mixture ratio. Refer to MA-15, "
Anti-Freeze Coolant Mixture Ratio" .
2. After refilling coolant, run engine to ensure that no water-flow noise is emitted.
Overall Function CheckBBS005GA
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 when the engine is hot. Serious burns could be caused by high pres-
sure fluid escaping from the radiator.
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-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-224,
"Diagnostic Procedure" .
2. Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to EC-224,
"Diagnostic Procedure" .
3. Turn ignition switch ON.
4. Perform “COOLING FAN” in “ACTIVE TEST” mode with CON-
SULT-II.
5. If the results are NG, go to EC-224, "
Diagnostic Procedure" .
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1217
1217Engine over tempera-
ture (Overheat)

Cooling fan does not operate properly (Over-
heat).

Cooling fan system does not operate prop-
erly (Overheat).

Engine coolant 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
shorted.)

IPDM E/R

Cooling fan

Radiator hose

Radiator

Radiator cap

Water pump

Thermostat
For more information, refer to EC-227,
"Main 12 Causes of Overheating" .
SEF621W
SEF646X

DTC P1217 ENGINE OVER TEMPERATURE
EC-221
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WITHOUT 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-224,
"Diagnostic Procedure" .
2. Confirm whether customer filled the coolant or not. If customer
filled the coolant, skip the following steps and go to EC-224,
"Diagnostic Procedure" .
3. Perform IPDM E/R auto active test and check cooling fan motors
operation, refer to PG-21, "
Auto Active Test" .
4. If NG, go to EC-224, "
Diagnostic Procedure" .SEF621W

EC-222
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DTC P1217 ENGINE OVER TEMPERATURE

Wiring DiagramBBS005GB
TBWM1495E

DTC P1217 ENGINE OVER TEMPERATURE
EC-223
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TBWM1496E

EC-224
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DTC P1217 ENGINE OVER TEMPERATURE

Diagnostic ProcedureBBS005GC
1. INSPECTION START
Do you have CONSULT-II?
Ye s o r N o
Yes >> GO TO 2.
No >> GO TO 3.
2. CHECK COOLING FAN OPERATION
With CONSULT-II
1. Start engine and let it idle.
2. Select “COOLING FAN” in “ACTIVE TEST” mode with CON-
SULT-II.
3. Make sure that cooling fans-1 and -2 operate at each speed
(LOW/MID/HI).
OK or NG
OK >> GO TO 4.
NG >> Check cooling fan control circuit. (Go to EC-225,
"CHECK COOLING FAN CONTROL CIRCUIT" .)
3. CHECK COOLING FAN OPERATION
Without CONSULT-II
1. Perform IPDM E/R auto active test and check cooling fan motors operation, refer to PG-21, "
Auto Active
Te s t" .
2. Make sure that cooling fans-1 and -2 operate at each speed (Low/Middle/High).
OK or NG
OK >> GO TO 4.
NG >> Check cooling fan control circuit. (Go to EC-225, "
CHECK COOLING FAN CONTROL CIRCUIT"
.)
4. 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 5.
NG >> Check the following for leak. Refer to CO-10, "
LEVEL
CHECK" .

Hose

Radiator

Water pump
SEF784Z
Testing pressure: 157 kPa (1.57 bar, 1.6 kg/cm2 , 23 psi)
SLC756AA

DTC P1217 ENGINE OVER TEMPERATURE
EC-225
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5. CHECK COMPONENT PARTS
Check the following.

Radiator cap (Refer to CO-14, "Checking Radiator Cap" .)

Thermostat (Refer to CO-24, "THERMOSTAT AND WATER CONTROL VALVE" .)

Engine coolant temperature sensor (Refer to EC-135, "Component Inspection" .)
OK or NG
OK >> GO TO 6.
NG >> Replace malfunctioning component.
6. CHECK MAIN 12 CAUSES
If the cause cannot be isolated, go to EC-227, "
Main 12 Causes of Overheating" .
>>INSPECTION END
CHECK COOLING FAN CONTROL CIRCUIT
1. CHECK COOLILNG FAN POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connectors E6.
3. Check voltage between IPDM E/R terminal 15 and ground with
CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. DETECT MALFUNCTIONING PART
Check the following.

40A fusible link

Harness for open or short between IPDM E/R and battery
>> Repair open circuit or short to ground in harness or connectors.
3. CHECK COOLING FAN GROUND CIRCUIT
1. Disconnect IPDM E/R harness connectors E8, E9.
2. Check harness continuity between IPDM E/R terminal 16, 38, 60 and ground.
Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to power in harness or connectors.Voltage: Battery voltage
PBIB1681E
Continuity should exist.

EC-226
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DTC P1217 ENGINE OVER TEMPERATURE

4. CHECK COOLING FAN MOTOR-1 CIRCUIT-I
1. Disconnect cooling fan motor-1 harness connector.
2. Check voltage between cooling fan motor-1 terminals 1, 2 and
ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
5. DETECT MALFUNCTIONING PART
Check the following.

40A fusible link

Harness for open or short between cooling fan motor-1 and battery
>> Repair open circuit or short to ground in harness or connectors.
6. CHECK COOLING FAN MOTOR-1 CIRCUIT-II
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector E5.
3. Check harness continuity between cooling fan motor-1 terminal 3 and IPDM E/R terminal 8, cooling fan
motor-1 terminal 4 and IPDM E/R terminals 11, 12.
Refer to Wiring diagram.
OK or NG
OK >> GO TO 7.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
PBIB2130E
Voltage: Battery voltage
PBIB1670E

DTC P1217 ENGINE OVER TEMPERATURE
EC-227
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7. CHECK COOLING FAN MOTOR-2 CIRCUIT-I
1. Disconnect cooling fan motor-2 harness connector.
2. Check harness continuity between cooling fan motor-2 terminals
3, 4 and ground.
Refer to Wiring diagram.
3. Also check harness short to power.
OK or NG
OK >> GO TO 8.
NG >> Repair open circuit or short to power in harness or con-
nectors.
8. CHECK COOLING FAN MOTOR-2 CIRCUIT-II
1. Check harness continuity between cooling fan motor-2 terminal 1 and IPDM E/R terminal 13, cooling fan
motor-2 terminal 2 and IPDM E/R terminals 10, 14.
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 MOTORS
Refer to EC-228, "
Component Inspection" .
OK or NG
OK >> GO TO 10.
NG >> Replace cooling fan motors.
10. CHECK INTERMITTENT INCIDENT
Perform EC-105, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> Replace IPDM E/R. Refer to PG-17, "IPDM E/R (INTELLIGENT POWER DISTRIBUTION MOD-
ULE ENGINE ROOM)" .
NG >> Repair or replace harness or connector.
Main 12 Causes of OverheatingBBS005GD
Continuity should exist.
PBIB2130E
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 See MA-15 .
3

Coolant level
Visual Coolant up to MAX level
in reservoir tank and radi-
ator filler neckSee CO-10 .
4

Radiator cap
Pressure tester 59 - 98 kPa
(0.59 - 0.98 bar, 0.6 - 1.0
kg/cm
2 , 9 - 14 psi) (Limit)See CO-14
.
ON*
25
Coolant leaks
Visual No leaks See CO-10 .

EC-228
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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-6, "
OVERHEATING CAUSE ANALYSIS" .
Component InspectionBBS005GE
COOLING FAN MOTOR-1 AND -2
1. Disconnect cooling fan motor harness connector.
2. Supply cooling fan motor terminals with battery voltage and
check operation.
Cooling fan motor should operate.
If NG, replace cooling fan motor.
ON*26
Thermostat
Touch the upper and
lower radiator hosesBoth hoses should be hot See CO-24 , and CO-13 .
ON*
17
Cooling fan
CONSULT-II Operating See trouble diagnosis for
DTC P1217 (EC-218
).
OFF 8

Combustion gas leak
Color checker chemical
tester 4 Gas analyzerNegative —
ON*
39
Coolant temperature
gauge
Visual Gauge less than 3/4
when driving—

Coolant overflow to
reservoir tank
Visual No overflow during driving
and idlingSee CO-10 .
OFF*
410
Coolant return from
reservoir tank to radia-
tor
Visual Should be initial level in
reservoir tankSee CO-10 .
OFF 11

Cylinder head
Straight gauge feeler
gauge0.1 mm (0.004 in) Maxi-
mum distortion (warping)See EM-65 .
12

Cylinder block and pis-
tons
Visual No scuffing on cylinder
walls or pistonSee EM-81 . Engine Step Inspection item Equipment Standard Reference page
Cooling fan speedCooling fan motor terminals
(+) (−)
Middle (MID)1 3 and 4
2 3 and 4
1 and 2 3
1 and 2 4
High (HI) 1 and 2 3 and 4
SEF734W