Nissan Qashqai J11. Manual — part 514

EC9-212

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

P0200 FUEL INJECTOR

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-41, "Intermittent Incident"

.

NO

>> Repair or replace error-detected parts.

Component Inspection (Fuel Injector)

INFOID:0000000010309139

1.

CHECK FUEL INJECTOR

1.

Turn ignition switch OFF.

2.

Disconnect fuel injector harness connector.

3.

Check the resistance between fuel injector terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace fuel injector. Refer to

EM-404, "Removal and Installation"

.

Cylinder

+

-

Continuity

ECM

Fuel injector

Connector

Terminal

Connector

Terminal

No.1

F83

158

F62

1

Existed

160

2

No.2

154

F63

1

159

2

No.3

157

F64

1

155

2

No.4

153

F65

1

156

2

Fuel injector

Condition

Resistance

+

−

Terminal

1

2

Temperature: 20

°

C (68

°

F)

13.7 – 15.3

Ω

P0201, P0202, P0203, P0204 FUEL INJECTOR

EC9-213

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

C

D

E

F

G

H

I

J

K

L

M

A

EC9

N

P

O

P0201, P0202, P0203, P0204 FUEL INJECTOR

DTC Logic

INFOID:0000000010309140

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 1 minute before conducting the next test.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0201

CYLINDER 1 INJECTOR CIRC
(Injector circuit/open - cylinder 1)
• 1.DEF: AT MAXIMUM LIMIT
• 2.DEF: SIGNAL INCOHER-

ENCE

• 3.DEF: COMPARISON OF

CONFORMITY INFORMA-
TION (CHECKSUM)

• 4.DEF: ABOVE THE MAX

LEVEL

• 5.DEF: INCOHERENCE
• CO: OPEN CIRCUIT

• Injector code is incorrect.
• ECM detects fuel injectors circuit are

open or shorted.

• ECM error

• Harness or connectors

(The fuel injector circuit is open.)

• Fuel injector
• Injector code error

P0202

CYLINDER 2 INJECTOR CIRC
(Injector circuit/open - cylinder 2)
• 1.DEF: AT MAXIMUM LIMIT
• 2.DEF: SIGNAL INCOHER-

ENCE

• 3.DEF: COMPARISON OF

CONFORMITY INFORMA-
TION (CHECKSUM)

• 4.DEF: ABOVE THE MAX

LEVEL

• 5.DEF: INCOHERENCE
• CO: OPEN CIRCUIT

P0203

CYLINDER 3 INJECTOR CIRC
(Injector circuit/open - cylinder 3)
• 1.DEF: AT MAXIMUM LIMIT
• 2.DEF: SIGNAL INCOHER-

ENCE

• 3.DEF: COMPARISON OF

CONFORMITY INFORMA-
TION (CHECKSUM)

• 4.DEF: ABOVE THE MAX

LEVEL

• 5.DEF: INCOHERENCE
• CO: OPEN CIRCUIT

P0204

CYLINDER 4 INJECTOR CIRC
(Injector circuit/open - cylinder 4)
• 1.DEF: AT MAXIMUM LIMIT
• 2.DEF: SIGNAL INCOHER-

ENCE

• 3.DEF: COMPARISON OF

CONFORMITY INFORMA-
TION (CHECKSUM)

• 4.DEF: ABOVE THE MAX

LEVEL

• 5.DEF: INCOHERENCE
• CO: OPEN CIRCUIT

EC9-214

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

P0201, P0202, P0203, P0204 FUEL INJECTOR

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1.

Start engine and let it idle for at least 5 second.

2.

Check DTC.

Is DTC detected?

YES

>>

EC9-214, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000010309141

1.

PERFORM FUEL INJECTOR ADJUSTMENT VALUE REGISTRATION

1.

Perform FUEL INJECTOR ADJUSTMENT VALUE REGISTRATION. Refer to

EC9-147, "Work Proce-

dure"

.

2.

Perform DTC confirmation procedure. Refer to

EC9-213, "DTC Logic"

.

Is DTC detected again?

YES

>> GO TO 2.

NO

>> INSPECTION END

2.

CHECK FUEL RETURN HOSE

Check Fuel return hose.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace error-detected parts.

3.

CHECK COMPRESSION PRESSURE

Check compression pressure.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Check pistons, piston rings, valves, valve seats and cylinder head gaskets.

4.

CHECK FUEL INJECTOR HARNESS CONNECTOR STATE

Check fuel injector harness connector state.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts.

5.

CHECK FUEL INJECTOR

Refer to

EC9-215, "Component Inspection (Fuel Injector)"

.

Is the inspection result normal?

YES

>> GO TO 6.

NO

>> Repair or replace error-detected parts.

6.

CHECK FUEL INJECTOR CIRCUIT FOR OPEN AND SHORT

1.

Turn ignition switch OFF.

2.

Check fuel injector circuit for open and short.

P0201, P0202, P0203, P0204 FUEL INJECTOR

EC9-215

< DTC/CIRCUIT DIAGNOSIS >

[R9M]

C

D

E

F

G

H

I

J

K

L

M

A

EC9

N

P

O

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to

GI-41, "Intermittent Incident"

.

NO

>> Repair or replace error-detected parts.

Component Inspection (Fuel Injector)

INFOID:0000000010309142

1.

CHECK FUEL INJECTOR

1.

Turn ignition switch OFF.

2.

Disconnect fuel injector harness connector.

3.

Check the resistance between fuel injector terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace fuel injector. Refer to

EM-404, "Removal and Installation"

.

Cylinder

+

-

Continuity

ECM

Fuel injector

Connector

Terminal

Connector

Terminal

No.1

F83

158

F62

1

Existed

160

2

No.2

154

F63

1

159

2

No.3

157

F64

1

155

2

No.4

153

F65

1

156

2

Fuel injector

Condition

Resistance

+

−

Terminal

1

2

Temperature: 20

°

C (68

°

F)

13.7 – 15.3

Ω