Nissan Pathfinder (2006 year). Instruction — part 205

DTC P1217 ENGINE OVER TEMPERATURE

EC-499

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EC

2006 Pathfinder

Diagnostic Procedure

UBS00KDL

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-II)>>GO TO 2.
OK (Without CONSULT-II)>>GO TO 3.
NG

>> Check cooling fan (crankshaft driven). Refer to

CO-17, "Removal and Installation (Crankshaft

driven type)"

.

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 fan operates at each speed (LOW/HI).

OK or NG

OK

>> GO TO 4.

NG

>> Check cooling fan control circuit. (Go to

EC-500, "PRO-

CEDURE A"

.)

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-24, "Auto Active

Test"

.

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. (Go to

EC-500, "PROCEDURE A"

.)

4.

CHECK COOLING SYSTEM FOR LEAK

Refer to

CO-9, "CHECKING COOLING SYSTEM FOR LEAKS"

.

OK or NG

OK

>> GO TO 5.

NG

>> Check the following for leak. Refer to

CO-9, "CHECKING COOLING SYSTEM FOR LEAKS"

.

●

Hose

●

Radiator

●

Radiator cap

●

Reservoir tank

●

Water pump

5.

CHECK RESERVOIR TANK CAP

Refer to

CO-10, "CHECKING RESERVOIR CAP"

.

OK or NG

OK

>> GO TO 6.

NG

>> Replace reservoir tank cap.

SEF784Z

EC-500

DTC P1217 ENGINE OVER TEMPERATURE

2006 Pathfinder

6.

CHECK COMPONENT PARTS

Check the following

●

Thermostat. Refer to

CO-24, "WATER INLET AND THERMOSTAT ASSEMBLY"

.

●

Engine coolant temperature sensor. Refer to

EC-211, "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-501, "Main 12 Causes of Overheating"

.

>> INSPECTION END

PROCEDURE A

1.

CHECK COOLILNG FAN POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R harness connectors E120.

3.

Check voltage between IPDM E/R terminal 22 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 MOTOR CIRCUIT FOR OPEN AND SHORT

1.

Disconnect IPDM E/R harness connectors E120, E124.

2.

Disconnect cooling fan motor harness connector.

3.

Check harness continuity between the following;
cooling fan motor terminal 1 and IPDM E/R terminal 20,
cooling fan motor terminal 2 and IPDM E/R terminal 24.
Refer to Wiring Diagram.

4.

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

OK or NG

OK

>> GO TO 4.

NG

>> Repair open circuit or short to ground or short to power

in harness or connectors.

Voltage: Battery voltage

PBIB2607E

Continuity should exist.

BBIA0555E

DTC P1217 ENGINE OVER TEMPERATURE

EC-501

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2006 Pathfinder

4.

CHECK COOLING FAN MOTER GROUND CIRCUIT FOR OPEN OR SHORT

1.

Check harness continuity between the following;
cooling fan motor terminal 3 and ground,
cooling fan motor terminal 4 and ground.
Refer to Wiring Diagram.

2.

Also check harness for short to power.

OK or NG

OK

>> GO TO 5.

NG

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

5.

CHECK COOLING FAN MOTOR

Refer to

EC-502, "Component Inspection"

.

OK or NG

OK

>> GO TO 6.

NG

>> Replace cooling fan motor.

6.

CHECK INTERMITTENT INCIDENT

Perform

EC-144, "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 or connector.

Main 12 Causes of Overheating

UBS00KDM

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-12

3

●

Coolant level

●

Visual

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

CO-10

4

●

Reservoir tank cap

●

Pressure tester

59 - 98 kPa

(0.6 - 1.0 kg/cm

2

, 9 - 14

psi) (Limit)

CO-10

ON*

2

5

●

Coolant leaks

●

Visual

No leaks

CO-9

ON*

2

6

●

Thermostat

●

Touch the upper and
lower radiator hoses

Both hoses should be hot

CO-24

ON*

1

7

●

Cooling fan

●

CONSULT-II

Operating

See trouble diagnosis for
DTC P1217 (

EC-493

).

ON*

2

7

●

Cooling fan (Crankshaft
driven)

●

Visual

Operating

See

CO-17

.

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

CO-10

EC-502

DTC P1217 ENGINE OVER TEMPERATURE

2006 Pathfinder

*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-5, "OVERHEATING CAUSE ANALYSIS"

.

Component Inspection

UBS00KDN

COOLING FAN MOTOR

1.

Disconnect cooling fan motor harness connectors.

2.

Supply cooling fan motor terminals with battery voltage and
check operation.

Cooling fan motor should operate.
If NG, replace cooling fan motor.

OFF*

4

10

●

Coolant return from
reservoir tank to radia-
tor

●

Visual

Should be initial level in
reservoir tank

CO-10

OFF

11

●

Cylinder head

●

Straight gauge feeler
gauge

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

EM-94

12

●

Cylinder block and pis-
tons

●

Visual

No scuffing on cylinder
walls or piston

EM-107

Engine

Step

Inspection item

Equipment

Standard

Reference page

Cooling fan speed

Cooling fan motor terminals

(+)

(

−

)

Low

1

3 and 4

2

3 and 4

High

1 and 2

3 and 4

SEF734W

DTC P1225 TP SENSOR

EC-503

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2006 Pathfinder

DTC P1225 TP SENSOR

PFP:16119

Component Description

UBS00KDO

Electric throttle control actuator consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The throttle position sensor has the two sensors. These sensors are
a kind of potentiometers which transform the throttle valve position
into output voltage, and emit the voltage signal to the ECM. In addi-
tion, these sensors detect the opening and closing speed of the
throttle valve and feed the voltage signals to the ECM. The ECM
judges the current opening angle of the throttle valve from these sig-
nals and the ECM controls the throttle control motor to make the
throttle valve opening angle properly in response to driving condi-
tion.

On Board Diagnosis Logic

UBS00KDP

The MIL will not light up for this diagnosis.

DTC Confirmation Procedure

UBS00KDQ

NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10V at idle.

WITH CONSULT-II

1.

Turn ignition switch ON.

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Turn ignition switch OFF and wait at least 10 seconds.

4.

Turn ignition switch ON.

5.

If 1st trip DTC is detected, go to

EC-504, "Diagnostic Procedure"

.

WITH GST

Follow the procedure “WITH CONSULT-II” above.

PBIB0145E

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1225
1225

Closed throttle position
learning performance

Closed throttle position learning value is exces-
sively low.

●

Electric throttle control actuator
(TP sensor 1 and 2)

SEF058Y

EC-504

DTC P1225 TP SENSOR

2006 Pathfinder

Diagnostic Procedure

UBS00KDR

1.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

1.

Turn ignition switch OFF.

2.

Remove the intake air duct.

3.

Check if foreign matter is caught between the throttle valve and
the housing.

OK or NG

OK

>> GO TO 2.

NG

>> Remove the foreign matter and clean the electric throttle

control actuator inside.

2.

REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

1.

Replace the electric throttle control actuator.

2.

Perform

EC-77, "Throttle Valve Closed Position Learning"

.

3.

Perform

EC-77, "Idle Air Volume Learning"

.

>> INSPECTION END

Removal and Installation

UBS00KDS

ELECTRIC THROTTLE CONTROL ACTUATOR

Refer to

EM-17, "INTAKE MANIFOLD COLLECTOR"

.

BBIA0554E

DTC P1226 TP SENSOR

EC-505

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2006 Pathfinder

DTC P1226 TP SENSOR

PFP:16119

Component Description

UBS00KDT

Electric throttle control actuator consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The throttle position sensor has the two sensors. These sensors are
a kind of potentiometers which transform the throttle valve position
into output voltage, and emit the voltage signal to the ECM. In addi-
tion, these sensors detect the opening and closing speed of the
throttle valve and feed the voltage signals to the ECM. The ECM
judges the current opening angle of the throttle valve from these sig-
nals and the ECM controls the throttle control motor to make the
throttle valve opening angle properly in response to driving condi-
tion.

On Board Diagnosis Logic

UBS00KDU

The MIL will not light up for this diagnosis.

DTC Confirmation Procedure

UBS00KDV

NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 10V at idle.

WITH CONSULT-II

1.

Turn ignition switch ON.

2.

Select “DATA MONITOR” mode with CONSULT-II.

3.

Turn ignition switch OFF and wait at least 10 seconds.

4.

Turn ignition switch ON.

5.

Repeat steps 3 and 4 for 32 times.

6.

If 1st trip DTC is detected, go to

EC-506, "Diagnostic Procedure"

.

WITH GST

Follow the procedure “WITH CONSULT-II” above.

PBIB0145E

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1226
1226

Closed throttle position
learning performance

Closed throttle position learning is not per-
formed successfully, repeatedly.

●

Electric throttle control actuator
(TP sensor 1 and 2)

SEF058Y

EC-506

DTC P1226 TP SENSOR

2006 Pathfinder

Diagnostic Procedure

UBS00KDW

1.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

1.

Turn ignition switch OFF.

2.

Remove the intake air duct.

3.

Check if foreign matter is caught between the throttle valve and
the housing.

OK or NG

OK

>> GO TO 2.

NG

>> Remove the foreign matter and clean the electric throttle

control actuator inside.

2.

REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

1.

Replace the electric throttle control actuator.

2.

Perform

EC-77, "Throttle Valve Closed Position Learning"

.

3.

Perform

EC-77, "Idle Air Volume Learning"

.

>> INSPECTION END

Removal and Installation

UBS00KDX

ELECTRIC THROTTLE CONTROL ACTUATOR

Refer to

EM-17, "INTAKE MANIFOLD COLLECTOR"

.

BBIA0554E