2009 NISSAN LATIO Service Repair Manual

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Page 1761 of 4331

NISSAN LATIO 2009 Service Repair Manual EC
NP
O
YES >> GO TO 2.
NO >> Repair or replace ground connection. YES >> GO TO 6.
NO >> GO TO 3. YES >> GO TO 4.
NO >> Repair open circuit or short to ground or short to power in harness or connector

Page 1762 of 4331

NISSAN LATIO 2009 Service Repair Manual EC-406< COMPONENT DIAGNOSIS >
[HR16DE]
P2127, P2128
APP SENSOR
4. Also check harness for short to ground and short to power.
Is the inspection result normal? YES >> GO TO 7.
NO >> Repair open circuit

Page 1763 of 4331

NISSAN LATIO 2009 Service Repair Manual EC
NP
O
YES >> INSPECTION END
NO >> GO TO 2. Special Repair Requirement " .
>> INSPECTION END
Special Repair Requirement INFOID:0000000004780327ACCELERATOR PEDAL RELEASED POSITION
LEARNING : Special

Page 1764 of 4331

NISSAN LATIO 2009 Service Repair Manual EC-408< COMPONENT DIAGNOSIS >
[HR16DE]
P2135 TP SENSOR
P2135 TP SENSOR
Description INFOID:0000000004780448
Electric throttle control actuator consists of throttle control motor,
throttle posit

Page 1765 of 4331

NISSAN LATIO 2009 Service Repair Manual EC
NP
O
Wiring Diagram
INFOID:0000000004780703
Diagnosis Procedure INFOID:0000000004780330Ground Inspection " .
Is the inspection result normal?

Page 1766 of 4331

NISSAN LATIO 2009 Service Repair Manual EC-410< COMPONENT DIAGNOSIS >
[HR16DE]
P2135 TP SENSOR
YES >> GO TO 2.
NO >> Repair or replace ground connection. 2.
CHECK THROTTLE POSITION SE NSOR POWER SUPPLY CIRCUIT
1. Disconnect electric throttl

Page 1767 of 4331

NISSAN LATIO 2009 Service Repair Manual P2135 TP SENSOR
EC-411
< COMPONENT DIAGNOSIS >
[HR16DE] C
D E
F
G H
I
J
K L
M A EC
NP
O 7.
CHECK INTERMITTENT INCIDENT
Refer to EC-120, " Diagnosis Procedure " .
>> INSPECTION END
Component Inspectio

Page 1768 of 4331

NISSAN LATIO 2009 Service Repair Manual EC-412< COMPONENT DIAGNOSIS >
[HR16DE]
P2138 APP SENSOR
P2138 APP SENSOR
Description INFOID:0000000004780333
The accelerator pedal position sensor is installed on the upper end
of the accele

EC-412< COMPONENT DIAGNOSIS >
[HR16DE]
P2138 APP SENSOR
P2138 APP SENSOR
Description INFOID:0000000004780333
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 accelerator pedal is determined by the ECM
receiving the signal from the accelerator pedal position sensor. The
ECM uses this signal for the engine operation such as fuel cut.
DTC Logic INFOID:0000000004780334
DTC DETECTION LOGIC
NOTE:
If DTC P2138 is displayed with DTC P0643, first pe rform the trouble diagnosis for DTC P0643. Refer to
EC-358, " DTC 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-413, " Diagnosis Procedure " .
NO >> INSPECTION END PBIB1741E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2138 Accelerator pedal position
sensor circuit range/per-
formance Rationally incorrect voltage is sent to ECM
compared with the signals from APP sensor
1 and APP sensor 2. • Harness or connector
(APP sensor 1 or 2 circuit is open or
shorted.)
[Crankshaft position sensor (POS) circuit
is shorted.)
(Refrigerant pressure sensor circuit is
shorted.)
(EVAP control system sensor circuit is
shorted.)
• Accelerator pedal position sensor
(APP sensor 1 or 2)
• Crankshaft position sensor (POS)
• Refrigerant pressure sensor
• EVAP control system pressure sensor

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