Nissan Cube. Manual - part 323

EC-178

< DTC/CIRCUIT DIAGNOSIS >

[MR18DE]

P0128 THERMOSTAT FUNCTION

*: Example

-

STEP 2 (MT models)

Drive the vehicle at 60 km/h (37 MPH) or more with the difference between “COOLAN TEMP/S” and “FUEL

T/TMP SE” maintained at 24

°

C (43

°

F) or more.

STEP 2 (CVT models)
Drive the vehicle at 50 km/h (32 MPH) or more with the difference between “COOLAN TEMP/S” and “FUEL

T/TMP SE” maintained at 24

°

C (43

°

F) or more.

NOTE:
Keep the accelerator pedal as steady as possible during cruising.

-

STEP 3 (MT models)

Drive the vehicle at 60 km/h (37 MPH) or more until “COOLAN TEMP/S” increases by 6

°

C (11

°

F).

STEP 3 (CVT models)
Drive the vehicle at 50 km/h (32 MPH) or more until “COOLAN TEMP/S” increases by 6

°

C (11

°

F).

NOTE:
Keep the accelerator pedal as steady as possible during cruising.

Is the condition satisfied?

YES

>> GO TO 4.

NO

>> GO TO 1.

4.

PERFORM DTC CONFIRMATION PROCEDURE-II

With CONSULT

1.

Drive the vehicle until the following condition is satisfied.

CAUTION:

Always drive vehicle at safe speed.

2.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Proceed to 

EC-178, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009947304

1.

CHECK ENGINE COOLANT TEMPERATURE SENSOR

Refer to 

EC-179, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Replace engine coolant temperature sensor. Refer to 

CO-23, "Exploded View"

.

2.

CHECK THERMOSTAT

Refer to 

CO-22, "Inspection"

.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace thermostat. Refer to 

CO-21, "Removal and Installation"

.

COOLAN TEMP/S

65

°

C (149

°

F) or less

FUEL T/TMP SE

Less than the value calculated by sub-
tracting 24

°

C (43

°

F) from “COOLAN 

TEMP/S”.*

COOLAN TEMP/S

FUEL T/TMP SE

70

°

C (158

°

F)

46

°

C (115

°

F) or less

65

°

C (149

°

F)

41

°

C (106

°

F) or less

60

°

C (140

°

F)

36

°

C (97

°

F) or less

COOLAN TEMP/S

65

°

C (149

°

F) or more (MT models)

59

°

C (139

°

F) or more (CVT models)

P0128 THERMOSTAT FUNCTION

EC-179

< DTC/CIRCUIT DIAGNOSIS >

[MR18DE]

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Component Inspection

INFOID:0000000009947305

1.

CHECK ENGINE COOLANT TEMPERATURE SENSOR

1.

Turn ignition switch OFF.

2.

Disconnect engine coolant temperature sensor harness connector.

3.

Remove engine coolant temperature sensor. Refer to 

CO-23, "Exploded View"

.

4.

Check resistance between engine coolant temperature sensor terminals by heating with hot water as
shown in the figure.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace engine coolant temperature sensor. Refer to 

CO-23, "Exploded View"

.

Terminals

Condition

Resistance

1 and 2

Temperature [

°

C (

°

F)]

20 (68)

2.37 - 2.63 k

Ω

50 (122)

0.68 - 1.00 k

Ω

90 (194)

0.236 - 0.260 k

Ω

EC-180

< DTC/CIRCUIT DIAGNOSIS >

[MR18DE]

P0130 A/F SENSOR 1

P0130 A/F SENSOR 1

Description

INFOID:0000000009947306

The air fuel ratio (A/F) sensor 1 is a planar one-cell limit current sen-
sor. The sensor element of the A/F sensor 1 is composed an elec-
trode layer, which transports ions. It has a heater in the element.
The sensor is capable of precise measurement   = 1, but also in the
lean and rich range. Together with its control electronics, the sensor
outputs a clear, continuous signal throughout a wide   range.
The exhaust gas components diffuse through the diffusion layer at
the sensor cell. An electrode layer is applied voltage, and this current
relative oxygen density in lean. Also this current relative hydrocar-
bon density in rich.

Therefore, the A/F sensor 1 is able to indicate air fuel ratio by this
electrode layer of current. In addition, a heater is integrated in the
sensor to ensure the required operating temperature of about 800

°

C

(1,472

°

F).

DTC Logic

INFOID:0000000009947307

DTC DETECTION LOGIC

To judge the malfunction, the diagnosis checks that the A/F signal computed by ECM from the A/F sensor 1
signal fluctuates according to fuel feedback control.

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 11 V at idle.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A

With CONSULT

1.

Start engine and warm it up to normal operating temperature.

2.

Let it idle for 2 minutes.

3.

Check 1st trip DTC.

Is 1st trip DTC detected?

YES

>> Go to 

EC-182, "Diagnosis Procedure"

.

JMBIA0112GB

PBIB3354E

DTC No.

Trouble diagnosis name

DTC detecting condition

Possible Cause

P0130

Air fuel ratio (A/F) sensor 1 
circuit

A)

The A/F signal computed by ECM from the A/F 
sensor 1 signal is constantly in the range other 
than approx. 2.2 V.

• Harness or connectors

(The A/F sensor 1 circuit is open 
or shorted.)

• A/F sensor 1

B)

The A/F signal computed by ECM from the A/F 
sensor 1 signal is constantly approx. 2.2 V.

P0130 A/F SENSOR 1

EC-181

< DTC/CIRCUIT DIAGNOSIS >

[MR18DE]

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NO-1

>> With CONSULT: GO TO 3.

NO-2

>> Without CONSULT: GO TO 7.

3.

CHECK AIR FUEL RATIO (A/F) SENSOR 1 FUNCTION

1.

Select “A/F SEN1 (B1)” in “DATA MONITOR” mode with CONSULT.

2.

Check “A/F SEN1 (B1)” indication.

Does the indication fluctuates around 2.2 V?

YES

>> GO TO 4.

NO

>> Go to 

EC-182, "Diagnosis Procedure"

.

4.

PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B-I

1.

Select “A/F SEN1 (B1) P1276” of “A/F SEN1” in “DTC WORK SUPPORT” mode with CONSULT.

2.

Touch “START”.

3.

When the following conditions are met, “TESTING” will be displayed on the CONSULT screen.

If “TESTING” is not displayed after 20 seconds, retry from step 2.

CAUTION:

Always drive vehicle at a safe speed.

Is “TESTING” displayed on CONSULT screen?

YES

>> GO TO 5.

NO

>> Check A/F sensor 1 function again. GO TO 3.

5.

PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B-II

Release accelerator pedal fully.
NOTE:
Never apply brake during releasing the accelerator pedal.
Which does “TESTING” change to?

COMPLETED>>GO TO 6.
OUT OF CONDITION>>Retry DTC CONFIRMATION PROCEDURE. GO TO 4.

6.

PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION B-III

Touch “SELF-DIAG RESULT”

Which is displayed on CONSULT screen?

YES

>> INSPECTION END

NO

>> Go to 

EC-182, "Diagnosis Procedure"

.

7.

PERFORM COMPONENT FUNCTION CHECK FOR MALFUNCTION B

Perform Component Function Check. Refer to 

EC-181, "Component Function Check"

.

NOTE:
Use component function check to check the overall function of the A/F sensor 1 circuit. During this check, a
1st trip DTC might not be confirmed.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Go to 

EC-182, "Diagnosis Procedure"

.

Component Function Check

INFOID:0000000009947308

1.

PERFORM COMPONENT FUNCTION CHECK

With GST

1.

Start engine and warm it up to normal operating temperature.

2.

Drive the vehicle at a speed of 80 km/h (50 MPH) for a few minutes in the suitable gear position.

ENG SPEED

1,000 - 3,200 rpm

VHCL SPEED SE

More than 64 km/h (40 mph)

B/FUEL SCHDL

1.0 - 8.0 msec

Selector lever

D position (CVT)
5th position (M/T)