Nissan Juke F15. Manual - part 511

P0112, P0113 IAT SENSOR 1

EC-857

< 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.
Is the inspection result normal?

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

3.

CHECK INTAKE AIR TEMPERATURE SENSOR 1 GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between mass air flow sensor harness connector and ECM harness connector.

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

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK INTAKE AIR TEMPERATURE SENSOR 1

Check the intake air temperature sensor 1. Refer to 

EC-857, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-45, "Intermittent Incident"

.

NO

>> Replace mass air flow sensor (with intake air temperature sensor 1). Refer to 

EM-192, "Exploded

View"

.

Component Inspection

INFOID:0000000012198362

1.

CHECK INTAKE AIR TEMPERATURE SENSOR 1

1. Turn ignition switch OFF.

2. Disconnect mass air flow sensor harness connector.

3. Check resistance between mass air flow sensor terminals as per the following.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace mass air flow sensor (with intake air temperature sensor 1). Refer to 

EM-192, "Exploded

View"

.

+

−

Continuity

MAF sensor

ECM

Connector

Terminal

Connector

Terminal

F8

4

F23

36

Existed

+

−

Continuity

MAF sensor

ECM

Connector

Terminal

Connector

Terminal

F8

3

F23

42

Existed

Mass air flow sensor

Condition

Resistance (k

Ω)

+

−

Terminals

3

4

Intake air temperature [

°C (°F)]

25 (77)

1.800 - 2.200

EC-858

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

P0116 ENGINE COOLANT TEMPERATURE SENSOR 1

P0116 ENGINE COOLANT TEMPERATURE SENSOR 1

DTC Logic

INFOID:0000000012198363

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

INSPECTION START

Is it necessary to erase permanent DTC?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

PERFORM COMPONENT FUNCTION CHECK

Perform component function check. Refer to 

EC-859, "Component Function Check"

.

NOTE:

Use the component function check to check the overall function of the ECT sensor circuit. During this check, a

1st trip DTC might not be confirmed.
Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Proceed to 

EC-859, "Diagnosis Procedure"

.

3.

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, do not add fuel.

• Before performing the following procedure, check that fuel level is between 1/4 and 4/4.

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

>> GO TO 4.

4.

PERFORM DTC CONFIRMATION PROCEDURE

1. Move the vehicle to a cool place.

NOTE:

Cool the vehicle in an environment of ambient air temperature between 

−10°C (14°F) and 35°C (95°F).

2. Turn ignition switch OFF and leave the vehicle for 12 hours.

CAUTION:

Never turn ignition switch ON during this procedure.

NOTE:

The vehicle must be cooled with the hood open.

3. Start engine and let it idle for 20 minutes or more.

CAUTION:

Never turn ignition switch OFF during idling.

4. Check 1st trip DTC.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0116

ECT SEN/CIRC
(Engine coolant temperature sen-
sor 1 circuit range/performance)

The comparison result of signals transmitted 
to ECM from each temperature sensor (IAT 
sensor, ECT sensor, FTT sensor, and EOT 
sensor) shows that the voltage signal of the 
ECT sensor is higher/lower than that of other 
temperature sensors when the engine is start-
ed with its cold state.

• Harness or connectors

(High or low resistance in the ECT 
sensor circuit)

• Engine coolant temperature sen-

sor 1

P0116 ENGINE COOLANT TEMPERATURE SENSOR 1

EC-859

< 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 1st trip DTC detected?

YES

>> Proceed to 

EC-859, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Component Function Check

INFOID:0000000012198364

1.

CHECK ENGINE COOLANT TEMPERATURE (ECT) SENSOR 1

1. Turn ignition switch OFF.

2. Disconnect ECT sensor 1 harness connector.

3. Remove ECT sensor 1. Refer to 

CO-54, "Exploded View"

.

4. Check resistance between ECT sensor 1 terminals by heating

with hot water as shown in the figure.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-45, "Intermittent

Incident"

.

NO

>> Proceed to 

EC-859, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000012198365

1.

CHECK ENGINE COOLANT TEMPERATURE (ECT) SENSOR 1

Check ECT sensor 1. Refer to 

EC-859, "Component Inspection"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-45, "Intermittent Incident"

.

NO

>> Replace ECT sensor 1. Refer to 

CO-54, "Exploded View"

.

Component Inspection

INFOID:0000000012198366

1.

CHECK ENGINE COOLANT TEMPERATURE SENSOR 1

1. Turn ignition switch OFF.

2. Disconnect engine coolant temperature sensor 1 harness connector.

3. Remove engine coolant temperature sensor 1. Refer to 

CO-54, "Exploded View"

.

4. Check resistance between engine coolant temperature sensor 1

terminals as per the following.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace engine coolant temperature sensor 1. Refer to 

CO-54, "Exploded View"

.

Terminals

Condition

Resistance (k

Ω)

1 and 2

Temperature [

°C (°F)]

20 (68)

2.37 – 2.63

50 (122)

0.68 – 1.00

90 (194)

0.236 – 0.260

JMBIA0080ZZ

ECT sensor

Condition

Resistance 

(k

Ω)

+

−

Terminal

1

2

Temperature [

°C (°F)]

20 (68)

2.37 - 2.63

50 (122)

0.68 - 1.00

90 (194)

0.236 - 0.260

JMBIA0080ZZ

EC-860

< DTC/CIRCUIT DIAGNOSIS >

[MR EXCEPT FOR NISMO RS MODELS]

P0117, P0118 ENGINE COOLANT TEMPERATURE SENSOR 1

P0117, P0118 ENGINE COOLANT TEMPERATURE SENSOR 1

DTC Logic

INFOID:0000000012198367

DTC DETECTION LOGIC

DTC CONFIRMATION PROCEDURE

1.

PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure

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.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1. Turn ignition switch ON and wait at least 5 seconds.

2. Check DTC.
Is DTC detected?

YES

>> Proceed to 

EC-860, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000012198368

1.

CHECK ENGINE COOLANT TEMPERATURE SENSOR 1 POWER SUPPLY

1. Turn ignition switch OFF.

2. Disconnect engine coolant temperature (ECT) sensor 1 harness connector.

3. Turn ignition switch ON.

4. Check the voltage between ECT sensor 1 harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 4.

2.

CHECK ENGINE COOLANT TEMPERATURE SENSOR 1 GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between ECT sensor 1 harness connector and ECM harness connector.

DTC No.

Trouble diagnosis name

(Trouble diagnosis content)

DTC detecting condition

Possible Cause

P0117

ECT SEN/CIRC
(Engine coolant temperature 
sensor 1 circuit low input)

An excessively low voltage from the engine 
coolant temperature sensor 1 is sent to 
ECM.

• Harness or connectors

(Engine coolant temperature sensor 1 
circuit is open or shorted.)

• Engine coolant temperature sensor 1

P0118

ECT SEN/CIRC
(Engine coolant temperature 
sensor 1 circuit high input)

An excessively high voltage from the en-
gine coolant temperature sensor 1 is sent to 
ECM.

+

−

Voltage

(Approx.)

ECT sensor 1

Connector

Terminal

F50

1

Ground

5 V