Nissan X-Trail 32. Manual - part 2170

TM-638

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F10G]

P188F ELECTRIC OIL PUMP

4.

Maintain stop/start system operation state for 10 seconds or more again.
NOTE:
If the engine restarts automatically 10 seconds later, the system may be in fail safe.

5.

Check the DTC.

“P188F” detected?

YES

>> Go to 

TM-638, "Diagnosis Procedure"

.

NO

>> GO TO 3.

3.

CHECK DTC DETECTION (PART 2)

With CONSULT

1.

Turn ignition switch OFF.

2.

Start the engine.

3.

Maintain stop/start system operation state for 10 seconds or more. Refer to 

EC-856, "STOP/START SYS-

TEM : System Description (CVT models)"

.

4.

Restart the engine and drive.

5.

Maintain stop/start system operation state for 10 seconds or more again.
NOTE:
If the engine restarts automatically 10 seconds later, the system may be in fail safe.

6.

Check the DTC.

“P188F” detected?

YES

>> Go to 

TM-638, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010646399

1.

AIR BLEEDING OF ELECTRIC OIL PUMP

Perform air bleeding of the electric oil pump. Refer to 

TM-552, "Work Procedure"

.

>> GO TO 2.

2.

CHECK DTC DETECTION

Perform DTC confirmation procedure. Refer to 

TM-637, "DTC Description"

.

“P188F” detected?

YES 

>> Replace the electric oil pump & motor assembly. Refer to 

TM-702, "Removal and Installation"

.

NO

>> INSPECTION END

P1890 ELECTRIC OIL PUMP RELAY

TM-639

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F10G]

C

E

F

G

H

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TM

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P1890 ELECTRIC OIL PUMP RELAY

DTC Description

INFOID:0000000010646400

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connector (Open circuit or short circuit in harness between the TCM and the electric oil pump)
• Electric oil pump relay
• TCM

FAIL-SAFE

• Restart the engine during the stop/start system operation
• Turn OFF the electric oil pump relay
• When the vehicle is in stop/start system operation and the engine stops, restart the engine immediately

DTC CONFIRMATION PROCEDURE

CAUTION:

Be careful of the driving speed.

1.

PREPARATION BEFORE WORK

If another “DTC CONFIRMATION PROCEDURE” occurs just before, turn ignition switch OFF and wait for at
least 10 seconds, then perform the next test.

>> GO TO 2.

2.

CHECK DTC DETECTION

With CONSULT

1.

Turn ignition switch ON and wait for 5 seconds or more.

2.

Check the DTC.

“P1890” detected?

YES

>> Go to 

TM-639, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010646401

1.

ELECTRIC OIL PUMP RELAY

1.

Check the electric oil pump relay. Refer to 

TM-641, "Component Inspection (Electric Oil Pump Relay)"

.

Is the inspection result normal?

YES 

>> GO TO 2.

NO

>> Replace the electric oil pump relay.

2.

CHECK ELECTRIC OIL PUMP RELAY POWER CIRCUIT

Check voltage between the electric oil pump relay harness connector terminal and ground.

DTC

CONSULT screen terms

(Trouble diagnosis content)

DTC detection condition

P1890

ELECTRIC OIL PUMP RELAY
(Electric Oil Pump Relay)

When 1 is not satisfied and 2 is satisfied, and this state is maintained for 
5 seconds or more:
1.

When any of the following conditions are satisfied (diagnosis prohi-
bition condition): 

-

Battery voltage: 10 V or less 

-

Within 0.35 seconds after ignition switch is turned ON

-

Electric oil pump air bleed judgment: Air bleeding in progress or air 
bleeding is in judgment

2.

When all of the following conditions are satisfied: 

-

Electric oil pump relay OFF is being instructed and electric oil pump 
duty 0 %

TM-640

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F10G]

P1890 ELECTRIC OIL PUMP RELAY

Is the inspection result normal?

YES 

>> GO TO 3.

NO

>> GO TO 6.

3.

CHECK CIRCUIT BETWEEN TCM AND ELECTRIC OIL PUMP RELAY (PART 1)

1.

Disconnect the TCM connector.

2.

Check continuity between TCM harness connector terminal and electric oil pump relay harness connector
terminal.
NOTE:
• A diode is located between TCM and the electric oil pump relay.
• To check diode, refer to 

TM-641, "Component Inspection (Diode)"

.

Is the inspection result normal?

YES 

>> GO TO 4.

NO

>> Repair or replace malfunctioning parts.

4.

CHECK CIRCUIT BETWEEN TCM AND ELECTRIC OIL PUMP RELAY (PART 2)

Check continuity between the electric oil pump relay harness connector terminal and ground.

Is the inspection result normal?

YES 

>> GO TO 5.

NO

>> Repair or replace malfunctioning parts.

5.

CHECK ELECTRIC OIL PUMP RELAY SIGNAL

1.

Install the electric oil pump relay.

2.

Connect the TCM connector.

3.

Check the voltage between the TCM harness connector terminal and ground.

+

−

Condition

Voltage

Electric oil pump relay

Connector

Terminal

F66

1

Ground

Always

10 – 16 V

5

+

−

Continuity

TCM

Electric oil pump relay

Connector

Terminal

Connector

Terminal

F119

1

F66

2

Existed

+

−

Continuity

Electric oil pump relay

TCM

Connector

Terminal

Connector

Terminal

F66

2

F119

1

Not existed

Electric oil pump relay

—

Continuity

Connector

Terminal

F66

2

Ground

Not existed

P1890 ELECTRIC OIL PUMP RELAY

TM-641

< DTC/CIRCUIT DIAGNOSIS >

[CVT: RE0F10G]

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Is the inspection result normal?

YES >> INSPECTION 

END

NO

>> Replace TCM. Refer to 

TM-676, "Removal and Installation"

.

6.

DETECTION OF MALFUNCTION ITEMS

Check the following items:

• Fuse block (J/B)
• 10A fuse [No. 74, located in fuse block (J/B)] Refer to 

PG-84, "Fuse, Connector and Terminal Arrangement"

.

• Open circuit or short circuit in harness between battery positive terminal and electric oil pump relay harness

connector terminal 1, and 5. Refer to 

PG-12, "Wiring Diagram - BATTERY POWER SUPPLY -"

.

• Battery

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace malfunctioning parts.

Component Inspection (Electric Oil Pump Relay)

INFOID:0000000010646402

1.

ELECTRIC OIL PUMP RELAY

1.

Remove the electric oil pump relay. Refer to 

TM-466, "CVT CONTROL SYSTEM : Component Parts

Location"

.

2.

Apply voltage of 12 V between the electric oil pump relay connector terminals 1 and 2.

CAUTION:

• Never cause shorting between terminals.
• When applying voltage, put a fuse between terminals.

3.

Check continuity between the electric oil pump relay connector terminals 3 and 5.

Is the check result normal?

YES >> INSPECTION 

END

NO

>> Replace the electric oil pump relay.

Component Inspection (Diode)

INFOID:0000000010646403

• Check continuity with a tester. 

+

−

Condition

Voltage

TCM

Connector

Terminal

F119

1

Ground

• Selector lever: “D”position
• Vehicle speed: 11 km/h (7 MPH) or more

10 – 16 V

• Selector lever: “D”position
• Vehicle speed: 6 km/h (3 MPH) or less

Approx. 0 V

Electric oil pump relay

Condition

Continuity

Terminal

3 – 5

Apply voltage between terminals 1 and 2.

Existed

Do not apply voltage between terminals 1 and 2.

Not existed