Nissan Qashqai J11. Manual — part 449

ECK-356

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

P1675 ENGINE COOLANT TEMPERATURE

Confirm whether customer filled the coolant or not.

Did customer fill the coolant?

YES

>> Proceed to

ECK-357, "Diagnosis Procedure"

.

NO

>> GO TO 3.

3.

PERFORM COMPONENT FUNCTION CHECK-3

1.

Start engine and let it idle.

2.

Turn air conditioner switch and blower fan switch ON.

3.

Make sure that cooling fan operates at low speed.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Proceed to

ECK-357, "Diagnosis Procedure"

.

4.

PERFORM COMPONENT FUNCTION CHECK-4

1.

Turn ignition switch OFF.

2.

Turn air conditioner switch and blower fan switch OFF.

3.

Disconnect engine coolant temperature sensor harness connector.

4.

Connect 150

Ω

resistor to engine coolant temperature sensor harness connector.

5.

Restart engine and make sure that cooling fan operates at higher speed than low speed.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to

ECK-357, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010516086

1.

CHECK COOLING FAN OPERATION

Check cooling fan operation.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace malfunctioning part.

2.

CHECK COOLING SYSTEM FOR LEAK-1

Check cooling system for leak.

Is leakage detected?

YES

>> GO TO 3.

NO

>> GO TO 4.

3.

CHECK COOLING SYSTEM FOR LEAK-2

Check the following for leak.
• Hose
• Radiator
• Radiator cap
• Water pump
• Reservoir tank

>> Repair or replace malfunctioning part.

4.

CHECK RADIATOR CAP

Check radiator cap.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace radiator cap.

5.

CHECK THERMOSTAT

Check thermostat.
Is the inspection result normal?

YES

>> GO TO 6.

P1675 ENGINE COOLANT TEMPERATURE

ECK-357

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

C

D

E

F

G

H

I

J

K

L

M

A

ECK

N

P

O

NO

>> Replace thermostat.

6.

CHECK ENGINE COOLANT TEMPERATURE SENSOR

Check engine coolant temperature sensor. Refer to

ECK-202, "Component Inspection (Engine Coolant Tem-

perature Sensor)"

.

Is the inspection result normal?

YES

>> Perform overheating cause analysis. Refer to

CO-63, "Troubleshooting Chart"

.

NO

>> Replace engine coolant temperature sensor.

ECK-358

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

P2002 DIESEL PARTICULATE FILTER

P2002 DIESEL PARTICULATE FILTER

DTC Logic

INFOID:0000000010290019

DTC DETECTION LOGIC

NOTE:
If DTC P2002 is displayed with following DTC, perform the trouble diagnosis for following DTC. Refer
to

ECK-97, "DTC Index"

.

• DTC U0121, U0415, P0001, P0002, P0045, P0100, P0101, P0105, P0115, P0200, P0201, P0202, P0203,

P0204, P0225, P0226, P0335, P0402, P0470, P0471, P0487, P0488, P0544, P0560, P060A, P061A,
P062B, P0638, P0641, P0651, P0697, P1544, P160C, P1641, P1642, P1643, P1650, P2080, P2100,
P2119, P2120, P2226, P2263 and P253F.

DTC CONFIRMATION PROCEDURE

1.

PERFORM DIAGNOSIS PROCEDURE

NOTE:
DTC P2002 can not duplicate.

>> Proceed to

ECK-359, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000010290020

1.

CHECK DIESEL PARTICULATE FILTER

Refer to

ECK-359, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace diesel particulate filter.

2.

CHECK INTAKE AIR SYSTEM

Check the intake air system for leakage.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts and then GO TO 3.

3.

PERFORM SELF-DIAGNOSIS

Perform “Self-diagnostic results” of “ENGINE” using CONSULT.
Is any DTC detected?

YES

>> Replace diesel particulate filter.

NO

>> Perform SERVICE REGENERATION. Refer to

ECK-149, "Work Procedure"

.

Component Inspection

INFOID:0000000010290021

1.

CHECK DIESEL PARTICULATE FILTER

Check diesel particulate filter for damage.
Is the inspection result normal?

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P2002

PARTICLE FILTER
(Diesel particulate filter efficiency be-
low threshold bank 1)
• 1.DEF: CLOGGED
• 2.DEF: COMPONENT IN POOR

CONDITION

• 3.DEF: OFFSET IMPLAUSIBLE
• 4.DEF: FAULT ALERTED VIA THE

CONTROL UNIT

Diesel particulate filter function does not oper-
ate properly.

Diesel particulate filter

P2002 DIESEL PARTICULATE FILTER

ECK-359

< DTC/CIRCUIT DIAGNOSIS >

[K9K]

C

D

E

F

G

H

I

J

K

L

M

A

ECK

N

P

O

YES

>> Perform SERVICE REGENERATION. Refer to

ECK-149, "Work Procedure"

.

NO

>> Replace diesel particulate filter.