Nissan Sentra. Instruction — 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
.
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 >
[MRA8DE]
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 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
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
+
−
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
.
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
.
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
< DTC/CIRCUIT DIAGNOSIS >
[MRA8DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
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
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