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
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009947304
1.
CHECK ENGINE COOLANT TEMPERATURE SENSOR
EC-179, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Replace engine coolant temperature sensor. Refer to
2.
CHECK THERMOSTAT
.
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
.
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
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
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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EC
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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
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
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
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)
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