2009 NISSAN LATIO Service Repair Manual

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Page 1753 of 4331

NISSAN LATIO 2009 Service Repair Manual EC
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P2119 ELECTRIC THROTTLE CONTROL ACTUATOR
Description INFOID:0000000004780314
Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc.
The throttle

Page 1754 of 4331

NISSAN LATIO 2009 Service Repair Manual EC-398< COMPONENT DIAGNOSIS >
[HR16DE]
P2119 ELECTRIC THROTTLE CONTROL ACTUATOR
3. Check if foreign matter is caught between the throttle valve (1) and the housing.
- Electric throttle contr

Page 1755 of 4331

NISSAN LATIO 2009 Service Repair Manual EC
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P2122, P2123 APP SENSOR
Description INFOID:0000000004780318
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensor detects

Page 1756 of 4331

NISSAN LATIO 2009 Service Repair Manual Ground Inspection " .
Is the inspection result normal?

Page 1757 of 4331

NISSAN LATIO 2009 Service Repair Manual P2122, P2123 APP SENSOR
EC-401
< COMPONENT DIAGNOSIS >
[HR16DE] C
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YES >> GO TO 2.
NO >> Repair or replace ground connection. 2.
CHECK APP SENSOR 1 POWER SUPPLY CIRCUIT
1.

Page 1758 of 4331

NISSAN LATIO 2009 Service Repair Manual Diagnosis Procedure " .
>> INSPECTION END
Component Inspection INFOID:0000000004780321YES >> INSPECTION END
NO >> GO TO 2. Special Repair Requirement " .
>> INSPECTION END
Special Repair Requirement I

Page 1759 of 4331

NISSAN LATIO 2009 Service Repair Manual P2127, P2128 APP SENSOR
EC-403
< COMPONENT DIAGNOSIS >
[HR16DE] C
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P2127, P2128 APP SENSOR
Description INFOID:0000000004780323
The accelerator pedal position sensor i

P2127, P2128 APP SENSOR
EC-403
< COMPONENT DIAGNOSIS >
[HR16DE] C
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P2127, P2128 APP SENSOR
Description INFOID:0000000004780323
The accelerator pedal position sensor is installed on the upper end
of the accelerator pedal assembly. The sensor detects the accelera-
tor position and sends a signal to the ECM.
Accelerator pedal position sensor has two sensors. These sensors
are a kind of potentiometer which transform the accelerator pedal
position into output voltage, and emit the voltage signal to the ECM.
The ECM judges the current opening angle of the accelerator pedal
from these signals and controls the throttle control motor based on
these signals.
Idle position of the accelerato r pedal is determined by the ECM
receiving the signal from the acce lerator pedal position sensor. The
ECM uses this signal for the engine operation such as fuel cut.
DTC Logic INFOID:0000000004780324
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE 1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
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 DTC.
Is DTC detected? YES >> Go to
EC-404, " Diagnosis Procedure " .
NO >> INSPECTION END PBIB1741E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2127 Accelerator pedal position
sensor 2 circuit low input An excessively low voltage from the APP
sensor 2 is sent to ECM. • Harness or connectors
(APP sensor 2 circuit is open or shorted.)
[Crankshaft position sensor (POS) circuit
is shorted.]
(Refrigerant pressure sensor circuit is
shorted.)
(EVAP control system pressure sensor
circuit is shorted.)
• Accelerator pedal position sensor (APP sensor 2)
• Crankshaft position sensor (POS)
• Refrigerant pressure sensor
• EVAP control system pressure sensor
P2128
Accelerator pedal position
sensor 2 circuit high input An excessively high voltage from the APP
sensor 2 is sent to ECM.

Page 1760 of 4331

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