Nissan Juke F15. Manual - part 503

P0088 FRP CONTROL SYSTEM

EC-825

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace high pressure fuel pump. Refer to 

EM-203, "Exploded View"

.

ECM

Condition

Value

(Approx.)

Connector

+

−

Terminal

F23

25

13

Engine speed: idle

1.14 – 1.46 V

Engine speed: Revving engine from idle to 4,000 rpm quickly

1.3 – 2.9 V

EC-826

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

P0090 HIGH PRESSURE FUEL PUMP

P0090 HIGH PRESSURE FUEL PUMP

DTC Logic

INFOID:0000000012198328

DTC DETECTION LOGIC

NOTE:

• If DTC P0090 is displayed with DTC P1197, first perform the trouble diagnosis for DTC P1197. Refer to 

EC-

1071, "DTC Logic"

.

• DTC P0090 may be displayed when running out of gas.

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC CONFIRMATION PROCEDURE has been previously conducted, always perform the following proce-

dure before conducting the next test.

1. Turn ignition switch OFF and wait at least 10 seconds.

2. Turn ignition switch ON.

3. Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:

• Before performing the following procedure, confirm that battery voltage is 11 V or more at idle.

• Before performing the following procedure, check that the fuel tank is 1/8 full of fuel.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE-I

WITH CONSULT

1. Start engine.

2. Select “COOLAN TEMP/S” in “DATA MONITOR” mode of “ENGNE” using CONSULT.

3. Maintain the following condition for 5 seconds or more at idle.

4. Check 1st trip DTC.

WITH GST

Follow the above steps for “WITH CONSULT”.
Is 1st trip DTC detected?

YES

>> Proceed to 

EC-826, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000012198329

1.

CHECK HIGH PRESSURE FUEL PUMP CIRCUIT

1. Turn ignition switch ON.

2. Disconnect ECM harness connector and high pressure fuel pump harness connector.

3. Check the continuity between ECM harness connector and high pressure fuel pump harness connector.

DTC No.

Trouble diagnosis name

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0090

FUEL PUMP
(High pressure fuel pump cir-
cuit)

• Fuel rail pressure remains at 1.5 MPa 

(15 bar, 15.3 kg/ cm

2

, 217.5 psi) or 

less for 3 seconds or more during en-
gine rev.

• Fuel rail pressure remains at 18.5 

MPa (185 bar, 188.7 kg/ cm

2

, 2682.5 

psi) or more for 0.3 seconds or more 
during engine rev.

• Harness or connectors

(The fuel pump circuit is open or shorted.)

• High pressure fuel pump

COOLAN TEMP/S

: 70

°C (104°F) or more

P0090 HIGH PRESSURE FUEL PUMP

EC-827

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

4. Also check harness for short to ground and to power.
Is inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace the error-detected parts.

2.

CHECK HIGH PRESSURE FUEL PUMP

Check high pressure fuel pump. Refer to 

EC-827, "Component Inspection (High Pressure Fuel Pump)"

.

Is inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-45, "Intermittent Incident"

.

NO

>> Replace the error-detected parts.

Component Inspection (High Pressure Fuel Pump)

INFOID:0000000012198330

1.

CHECK HIGH PRESSURE FUEL PUMP-1

1. Turn ignition switch OFF.

2. Disconnect high pressure fuel pump harness connector.

3. Check the resistance between high pressure fuel pump terminals.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace high pressure fuel pump. Refer to 

EM-203, "Exploded View"

.

2.

CHECK HIGH PRESSURE FUEL PUMP-2

WITH CONSULT

1. Reconnect high pressure fuel pump harness connector.

2. Start the engine.

3. Check “FUEL PRES SEN V” in “DATA MONITOR” mode of “ECM” using CONSULT.

WITHOUT CONSULT

1. Reconnect high pressure fuel pump harness connector.

2. Start the engine.

3. Check FRP sensor signal voltage.

+

−

Value

(Approx.)

ECM

High pressure fuel pump

Connector

Terminal

Connector

Terminal

F23

48

F53

1

Existed

49

2

+

−

Condition

Resistance

(Approx.)

High pressure fuel pump

Terminal

1

2

Temperature 

°C (°F)

20 – 30 (68 - 86)

0.46 - 0.51 

Ω

Monitor item

Condition

Value

(Approx.)

FUEL PRES SEN V

Engine speed: idle

1,140 – 1,460 mV

Engine speed: Revving engine from idle to 4,000 rpm quickly

1,300 – 2,900 mV

EC-828

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

P0090 HIGH PRESSURE FUEL PUMP

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace high pressure fuel pump. Refer to 

EM-203, "Exploded View"

.

ECM

Condition

Value

(Approx.)

Connector

+

−

Terminal

F23

25

13

Engine speed: idle

1.14 – 1.46 V

Engine speed: Revving engine from idle to 4,000 rpm quickly

1.3 – 2.9 V