Nissan Pathfinder (2006 year). Manual — 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
.
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
3.
CHECK COOLING FAN OPERATION
Without CONSULT-II
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. (Go to
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
PG-18, "IPDM E/R (INTELLIGENT POWER DISTRIBUTION MOD-
.
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
3
●
Coolant level
●
Visual
Coolant up to MAX level
in reservoir tank and radi-
ator filler neck
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
ON*
1
7
●
Cooling fan
●
CONSULT-II
Operating
See trouble diagnosis for
DTC P1217 (
ON*
2
7
●
Cooling fan (Crankshaft
driven)
●
Visual
Operating
See
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
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
OFF
11
●
Cylinder head
●
Straight gauge feeler
gauge
0.1 mm (0.004 in) Maxi-
mum distortion (warping)
12
●
Cylinder block and pis-
tons
●
Visual
No scuffing on cylinder
walls or piston
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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EC
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
EM-17, "INTAKE MANIFOLD COLLECTOR"
BBIA0554E
DTC P1226 TP SENSOR
EC-505
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EC
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
EM-17, "INTAKE MANIFOLD COLLECTOR"
BBIA0554E
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