Nissan Tiida C11. Instruction — part 621
EC-1134
< COMPONENT DIAGNOSIS >
[K9K]
P0120 ELECTRIC THROTTLE CONTROL ACTUATOR
P0120 ELECTRIC THROTTLE CONTROL ACTUATOR
Description
INFOID:0000000001162585
By default the valve is open when in the rest position and is actuated only when the engine is stopped; this has
a damping effect and helps to stop the engine.
DTC Logic
INFOID:0000000001162586
DTC DETECTION LOGIC
NOTE:
• The electric throttle control actuator function is no longer ensured when the engine is stopped or the valve is
closed, then the engine stalls or starting is impossible.
Diagnosis Procedure
INFOID:0000000001162587
1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF.
2.
Check ground connection E15. Refer to Ground inspection in
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace ground connection.
2.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR POWER SUPPLY CIRCUIT
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 4.
NO
>> GO TO 3.
3.
DETECT MALFUNCTIONING PART
Check the following.
• IPDM E/R
• Harness connectors E8, F8
• Harness for open or short between IPDM E/R and electric throttle control actuator
• Harness for open or short between ECM and electric throttle control actuator
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
DTC No.
Trouble diagnosis name
Possible cause
P0120
ELECTRIC THROTTLE CONTROL ACTUATOR CIRCUIT
• CC.0: Short circuit to ground
• CC.1: Short circuit to +12V
• CO: Open circuit
• Harness or connectors
(Electric throttle control actuator circuit is
open or shorted.)
• Throttle position sensor
• Throttle control motor
Electric throttle control actua-
tor
Ground
Voltage
Connector
Terminal
F7
1
Ground
Battery voltage
P0120 ELECTRIC THROTTLE CONTROL ACTUATOR
EC-1135
< COMPONENT DIAGNOSIS >
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
3.
Check the continuity between electric throttle control actuator harness connector and ECM harness con-
nector.
4.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK INTERMITTENT INCIDENT
GI-55, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace electric throttle control actuator.
NO
>> Repair or replace.
Electric throttle control actuator
ECM
Continuity
Connector
Terminal
Connector
Terminal
F7
5
F11
72
Existed
2
94
4
90
EC-1136
< COMPONENT DIAGNOSIS >
[K9K]
P0180 FPT SENSOR
P0180 FPT SENSOR
Description
INFOID:0000000001162588
Fuel pump temperature sensor is built in the fuel pump. The sensor detects the fuel temperature in the fuel
pump and calibrates the fuel injection amount change by fuel temperature.
DTC Logic
INFOID:0000000001162589
DTC DETECTION LOGIC
NOTE:
• Conditions for applying the diagnostic procedure to the stored DTCs:
The DTC is declared present after the ignition has been switched on for at least 10 seconds.
Diagnosis Procedure
INFOID:0000000001162590
1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF.
2.
Check ground connection E15. Refer to Ground inspection in
.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace ground connection.
2.
CHECK FUEL PUMP TEMPERATURE SENSOR SUPPLY CIRCUIT
1.
Disconnect fuel pump temperature sensor harness connector.
2.
Turn ignition switch ON.
3.
Check the voltage between fuel pump temperature sensor connector and ground.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
3.
CHECK FUEL PUMP TEMPERATURE SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check the continuity between fuel pump temperature sensor harness connector and ECM harness con-
nector.
4.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair open circuit or short to ground or short to power in harness or connectors.
DTC No.
Trouble diagnosis name
Possible cause
P0180
FUEL PUMP TEMPERATURE SENSOR CIRCUIT
• CC.0: Short circuit to ground
• CO.1: Open circuit or short circuit to +12V
• 1.DEF: Micro-breaks
• 2.DEF: Signal incoherence
• Harness or connectors
(Fuel pump temperature sensor circuit is
open or shorted.)
• Fuel pump temperature sensor
Fuel pump temperature sensor
Ground
Voltage
Connector
Terminal
F29
1
Ground
Approx. 5V
Fuel pump temperature sensor
ECM
Continuity
Connector
Terminal
Connector
Terminal
F29
2
F10
29
Existed
P0180 FPT SENSOR
EC-1137
< COMPONENT DIAGNOSIS >
[K9K]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
4.
CHECK FUEL PUMP TEMPERATURE SENSOR
EC-1137, "Component Inspection"
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Replace fuel pump temperature sensor.
5.
CHECK INTERMITTENT INCIDENT
GI-55, "Intermittent Incident"
.
>> INSPECTION END
Component Inspection
INFOID:0000000001162591
1.
CHECK FUEL PUMP TEMPERATURE SENSOR
Check resistance between fuel pump temperature sensor terminals 1 and 2 under the following conditions.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace Engine coolant temperature sensor.
Condition
Resistance (
Ω
)
25
°
C (77
°
F)
2,051
±
123
50
°
C (112
°
F)
811
±
47
80
°
C (176
°
F)
309
±
17
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