Nissan Qashqai J11. Manual — part 512
EC9-204
< DTC/CIRCUIT DIAGNOSIS >
[R9M]
P0115 ECT SENSOR
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace error-detected parts.
4.
CHECK ENGINE COOLANT TEMPERATURE SENSOR
EC9-204, "Component Inspection (Engine Coolant Temperature Sensor)"
.
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-41, "Intermittent Incident"
.
NO
>> Replace error-detected parts.
Component Inspection (Engine Coolant Temperature Sensor)
INFOID:0000000010309121
1.
CHECK ENGINE COOLANT TEMPERATURE SENSOR
1.
Disconnect engine coolant temperature sensor harness connector.
2.
Check resistance between engine coolant temperature sensor terminals under the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace engine coolant temperature sensor.
+
-
Continuity
ECM
Engine coolant temperature
sensor
Connector
Terminal
Connector
Terminal
F83
129
F51
2
Existed
133
1
Engine coolant temperature sensor
Condition
Resistance
+
-
Terminal
2
1
Temperature
°
C (
°
F)
25 (77)
2.140 – 2.364 k
Ω
P0120 TP SENSOR
EC9-205
< DTC/CIRCUIT DIAGNOSIS >
[R9M]
C
D
E
F
G
H
I
J
K
L
M
A
EC9
N
P
O
P0120 TP SENSOR
DTC Logic
INFOID:0000000010309122
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 1 minute before conducting the next test.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON and wait at least 1 second.
2.
Check DTC.
Is DTC detected?
YES
>> Proceed to
EC9-205, "Diagnosis Procedure"
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010309123
1.
CHECK ECM HARNESS CONNECTOR CONNECTIONS
1.
Turn ignition switch OFF.
2.
Check ECM harness connector connection.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace error-detected parts.
2.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR HARNESS CONNECTOR CONNECTIONS
Check electric throttle control actuator harness connector connection.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected parts.
3.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR FITTING CONDITION
Check electric throttle control actuator fitting condition.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Adjust parts fitting condition.
4.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR CIRCUIT FOR OPEN AND SHORT
Check electric throttle control actuator circuit for open and short.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
Possible cause
P0120
INLET AIR FLAP POSITION SEN
(Throttle/pedal position sensor/
switch “A” circuit)
• 1.DEF: SIGNAL INCOHER-
ENCE
• Throttle position sensor voltage sent to
ECM is 4.8 V or more for 0.5 second or
more.
• Throttle position sensor voltage sent to
ECM is 0.2 V or less for 0.5 second or
more.
• Harness or connectors
(Throttle position sensor circuit is open
or shorted.)
• Throttle position sensor
• Electric throttle control actuator
EC9-206
< DTC/CIRCUIT DIAGNOSIS >
[R9M]
P0120 TP SENSOR
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace error-detected parts.
5.
CHECK THROTTLE POSITION SENSOR
EC9-206, "Component Inspection (Throttle Position Sensor)"
Is the inspection result normal?
YES
>> Check intermittent incident. Refer to
GI-41, "Intermittent Incident"
.
NO
>> Replace error-detected parts.
Component Inspection (Throttle Position Sensor)
INFOID:0000000010309124
1.
CHECK THROTTLE POSITION SENSOR
1.
Turn ignition switch OFF.
2.
Reconnect all harness connectors disconnected.
3.
.
4.
Turn ignition switch ON.
5.
Set selector lever to D position.
6.
Check the voltage between ECM harness connector terminals under the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace malfunctioning electric throttle control actuator.
+
-
Continuity
ECM
Electric throttle control actu-
ator
Connector
Terminal
Connector
Terminal
F83
103
F116
2
Existed
107
3
108
1
ECM
Condition
Voltage (V)
Connector
+
–
Terminal
F83
107
103
Accelerator pedal: Fully released
More than 0.425
Accelerator pedal: Fully depressed
Less than 4.760
P0135 A/F SENSOR HEATER
EC9-207
< DTC/CIRCUIT DIAGNOSIS >
[R9M]
C
D
E
F
G
H
I
J
K
L
M
A
EC9
N
P
O
P0135 A/F SENSOR HEATER
DTC Logic
INFOID:0000000010309130
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 1 minute before conducting the next test.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON and wait at least 10 seconds.
2.
Check DTC.
Is DTC detected?
YES
>> Proceed to
EC9-207, "Diagnosis Procedure"
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000010309131
1.
CHECK ECM HARNESS CONNECTOR CONNECTIONS
1.
Turn ignition switch OFF.
2.
Check ECM harness connector connection.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace error-detected parts.
2.
CHECK AIR FUEL RATIO (A/F) SENSOR HARNESS CONNECTOR CONNECTIONS
Check A/F sensor harness connector connection.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace error-detected parts.
3.
CHECK A/F SENSOR HEATER CIRCUIT FOR OPEN AND SHORT
Check A/F sensor circuit for open and short.
Is the inspection result normal?
DTC No.
CONSULT screen terms
(Trouble diagnosis con-
tent)
DTC detecting condition
Possible cause
P0135
PROPOR RICH SEN
HEAT CIRC
(O2 sensor heater circuit
bank 1 sensor 1)
• CC.0: SHORT CIR-
CUIT TO EARTH
• CC.1: SHORT-CIR-
CUIT TO +12V
• CO: OPEN CIRCUIT
• ECM detects Air Fuel Ratio Sensor Heater cir-
cuit is open for 5 seconds.
• ECM detects Air Fuel Ratio Sensor Heater cir-
cuit is short to ground for 5 seconds.
• ECM detects Air Fuel Ratio Sensor Heater cir-
cuit is short to power for 5 seconds.
• Harness or connectors
(The air fuel ratio sensor heater circuit is
open or shorted.)
• Air fuel ratio sensor heater
+
-
Continuity
ECM
A/F sensor
Connector
Terminal
Connector
Terminal
F82
89
F75
3
Existed
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