Nissan Sentra. Manual - part 392

EC-264

< DTC/CIRCUIT DIAGNOSIS >

[MRA8DE]

P0197, P0198 EOT SENSOR

P0197, P0198 EOT SENSOR

DTC Logic

INFOID:0000000009758513

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. Start engine and wait at least 5 seconds.

2. Check 1st trip DTC.
Is 1st trip DTC detected?

YES

>> Proceed to 

EC-264, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009758514

1.

CHECK ENGINE OIL TEMPERATURE SENSOR POWER SUPPLY

1. Turn ignition switch OFF.

2. Disconnect engine oil temperature (EOT) sensor harness connector.

3. Turn ignition switch ON.

4. Check the voltage between EOT sensor harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK ENGINE OIL TEMPERATURE SENSOR POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between EOT sensor harness connector and ECM harness connector.

DTC No.

CONSULT screen terms

(Trouble diagnosis content)

DTC detecting condition

Possible cause

P0197

EOT SEN/CIRC
(Engine oil temperature 
sensor circuit low)

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

• Harness or connectors

(EOT sensor circuit is open or shorted.)

• Engine oil temperature sensor

P0198

EOT SEN/CIRC
(Engine oil temperature 
sensor circuit high)

An excessively high voltage from the engine 
oil temperature sensor is sent to ECM.

+

−

Voltage

(Approx.)

EOT sensor

Connector

Terminal

F48

1

Ground

5.0 V

P0197, P0198 EOT SENSOR

EC-265

< DTC/CIRCUIT DIAGNOSIS >

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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 EOT SENSOR GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between EOT 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 ENGINE OIL TEMPERATURE SENSOR

Check the engine oil temperature sensor. Refer to 

EC-265, "Component Inspection (EOT Sensor)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

NO

>> Replace engine oil temperature sensor. Refer to 

EM-94, "Exploded View"

.

Component Inspection (EOT Sensor)

INFOID:0000000009758515

1.

CHECK ENGINE OIL TEMPERATURE SENSOR

1. Turn ignition switch OFF.

2. Disconnect engine oil temperature sensor harness connector.

3. Remove engine oil temperature sensor.

4. Check resistance between engine oil temperature sensor termi-

nals by heating with hot water as shown in the figure.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace engine oil temperature sensor. Refer to 

EM-94, "Exploded View"

.

+

−

Continuity

EOT sensor

ECM

Connector

Terminal

Connector

Terminal

F48

1

F24

25

Existed

+

−

Continuity

EOT sensor

ECM

Connector

Terminal

Connector

Terminal

F48

2

F24

26

Existed

Engine oil tempera-

ture sensor

Condition

Resistance

+

−

Terminal

1

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

JMBIA0080ZZ

E

C

- 2

6

6

< DTC/CIRCUIT DIAGNOSIS >

[MRA8DE]

P0222, P0223 TP SENSOR

P0222, P0223 TP SENSOR

DTC Logic

INFOID:0000000009758516

DTC DETECTION LOGIC

NOTE:

If DTC P0222 or P0223 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.

Refer to 

EC-353, "DTC 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.

TESTING CONDITION:

Before performing the following procedure, confirm that battery voltage is more than 8 V at idle.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE

1. Start engine and let it idle for 1 second.

2. Check 1st trip DTC.
Is 1st trip DTC detected?

YES

>> Proceed to 

EC-266, "Diagnosis Procedure"

.

NO

>> INSPECTION END

Diagnosis Procedure

INFOID:0000000009758517

1.

CHECK THROTTLE POSITION SENSOR 1 POWER SUPPLY

1. Turn ignition switch OFF.

2. Disconnect electric throttle control actuator harness connector.

3. Turn ignition switch ON.

4. Check the voltage between electric throttle control actuator harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

DTC No.

CONSULT screen terms

(Trouble diagnosis con-

tent)

DTC detecting condition

Possible cause

P0222

TP SEN 1/CIRC-B1
(Throttle/Pedal position 
sensor/switch “B” circuit 
low)

An excessively low voltage from the TP sensor 
1 is sent to ECM.

• Harness or connectors

(TP sensor 1 circuit is open or shorted.)

• Electric throttle control actuator

(TP sensor 1)

P0223

TP SEN 1/CIRC-B1
(Throttle/Pedal position 
sensor/switch “B” circuit 
high)

An excessively high voltage from the TP sensor 
1 is sent to ECM.

+

−

Voltage

(Approx.)

Electric throttle control actu-

ator

Connector

Terminal

F7

2

Ground

5.0 V

P0222, P0223 TP SENSOR

EC-267

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2.

CHECK THROTTLE POSITION SENSOR 1 POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between electric throttle control actuator harness connector and ECM harness con-

nector.

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

YES

>> Perform the trouble diagnosis for power supply circuit.

NO

>> Repair or replace error-detected parts.

3.

CHECK THROTTLE POSITION SENSOR 1 GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between electric throttle control actuator harness connector and ECM harness con-

nector.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace error-detected parts.

4.

CHECK THROTTLE POSITION SENSOR 1 INPUT SIGNAL CIRCUIT

1. Check the continuity between electric throttle control actuator harness connector and ECM harness con-

nector.

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

YES

>> GO TO 5.

NO

>> Repair or replace error-detected parts.

5.

CHECK THROTTLE POSITION SENSOR

Check throttle position sensor. Refer to 

EC-268, "Component Inspection (TP Sensor)"

.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-39, "Intermittent Incident"

.

NO

>> Replace electric throttle control actuator. Refer to 

EM-27, "Removal and Installation"

.

+

−

Continuity

Electric throttle control actu-

ator

ECM

Connector

Terminal

Connector

Terminal

F7

2

F25

80

Existed

+

−

Continuity

Electric throttle control actu-

ator

ECM

Connector

Terminal

Connector

Terminal

F7

4

F25

78

Existed

+

−

Continuity

Electric throttle control actu-

ator

ECM

Connector

Terminal

Connector

Terminal

F7

1

F25

79

Existed