Nissan Qashqai (2007-2010). Manual — part 184

P1217 ENGINE OVER TEMPERATURE

EC-255

< COMPONENT DIAGNOSIS >

[HR16DE (WITH EURO-OBD)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

>> Repair or replace malfunctioning part.

4.

CHECK RADIATOR CAP

Check radiator cap. Refer to

CO-13, "Removal and Installation"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace radiator cap.

5.

CHECK THERMOSTAT

Check thermostat. Refer to

CO-19, "Removal and Installation"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Replace thermostat.

6.

CHECK ENGINE COOLANT TEMPERATURE SENSOR

Refer to

EC-136, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 7.

NO

>> Replace engine coolant temperature sensor.

7.

CHECK MAIN 12 CAUSES

If the cause cannot be isolated, check the following.

*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.

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

CO-9, "Inspection"

3

• Coolant level

• Visual

Coolant up to MAX level in
reservoir tank and radiator
filler neck

CO-9, "Inspection"

4

• Radiator cap

• Pressure tester

59 - 98 kPa
(0.6 - 1.0 bar, 0.6 - 1.0 kg/

cm

2

, 9 - 14 psi) (Limit)

CO-14, "Inspection"

ON*

2

5

• Coolant leaks

• Visual

No leaks

CO-9, "Inspection"

ON*

2

6

• Thermostat

• Touch the upper and

lower radiator hoses

Both hoses should be hot

CO-20, "Inspection"

ON*

1

7

• Cooling fan motor

• CONSULT-III

Operating

EC-300, "Component In-
spection (Cooling Fan
Motor)"

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 res-

ervoir tank

• Visual

No overflow during driving
and idling

CO-9, "Inspection"

OFF*

4

10

• Coolant return from res-

ervoir tank to radiator

• Visual

Should be initial level in
reservoir tank

CO-9, "Inspection"

OFF

11

• Cylinder head

• Straight gauge feeler

gauge

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

EM-80, "Inspection"

12

• Cylinder block and pis-

tons

• Visual

No scuffing on cylinder
walls or piston

EM-101, "Inspection"

EC-256

< COMPONENT DIAGNOSIS >

[HR16DE (WITH EURO-OBD)]

P1217 ENGINE OVER TEMPERATURE

*4: After 60 minutes of cool down time.

For more information, refer to

CO-5, "Troubleshooting Chart"

.

>> INSPECTION END

P1225 TP SENSOR

EC-257

< COMPONENT DIAGNOSIS >

[HR16DE (WITH EURO-OBD)]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

P1225 TP SENSOR

Description

INFOID:0000000001056390

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 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 addition,
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 signals and the
ECM controls the throttle control motor to make the throttle valve
opening angle properly in response to driving condition.

DTC Logic

INFOID:0000000001056391

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

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.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Turn ignition switch ON.

2.

Turn ignition switch OFF and wait at least 10 seconds.

3.

Turn ignition switch ON.

4.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Go to

EC-257, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000001056392

1.

CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY

1.

Turn ignition switch OFF.

2.

Remove the intake air duct.

PBIB0145E

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible cause

P1225

Closed throttle position
learning performance

Closed throttle position learning value is exces-
sively low.

• Electric throttle control actuator

(TP sensor 1 and 2)

EC-258

< COMPONENT DIAGNOSIS >

[HR16DE (WITH EURO-OBD)]

P1225 TP SENSOR

3.

Check if foreign matter is caught between the throttle valve (1)
and the housing.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Remove the foreign matter and clean the electric throttle

control actuator inside.

2.

REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

1.

Replace electric throttle control actuator.

2.

Go to

EC-258, "Special Repair Requirement"

.

>> INSPECTION END

Special Repair Requirement

INFOID:0000000001056393

1.

PERFORM THROTTLE VALVE CLOSED POSITION LEARNING

Refer to

EC-31, "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement"

>> GO TO 2.

2.

PERFORM IDLE AIR VOLUME LEARNING

Refer to

EC-31, "IDLE AIR VOLUME LEARNING : Special Repair Requirement"

>> END

: Vehicle front

PBIB2974E