2008 NISSAN LATIO Service Repair Manual

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Page 1561 of 2771

NISSAN LATIO 2008 Service Repair Manual DTC P2135 TP SENSOR
EC-487
< SERVICE INFORMATION >
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DTC P2135 TP SENSOR
Component DescriptionINFOID:0000000001703025
Electric throttle control actuator consists of throt

DTC P2135 TP SENSOR
EC-487
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DTC P2135 TP SENSOR
Component DescriptionINFOID:0000000001703025
Electric throttle control actuator consists of throttle control motor,
throttle position sensor, etc. The throttle position sensor responds to
the throttle valve movement.
The throttle position sensor has two sensors. These sensors are a
kind of potentiometers which transform the throttle valve position into
output voltage, and emit the voltage signal to the ECM. In addition,
these sensors detect the opening and closing speed of the throttle
valve and feed the voltage signals to the ECM. The ECM judges the
current opening angle of the throttle valve from these signals and the
ECM controls the throttle control motor to make the throttle valve
opening angle properly in response to driving condition.
CONSULT-II Reference Value in Data Monitor ModeINFOID:0000000001703026
Specification data are reference values.
*: Throttle position sensor 2 signal is converted by ECM internally. Thus, it differs from ECM terminal voltage signal.
On Board Diagnosis LogicINFOID:0000000001703027
This self-diagnosis has the one trip detection logic.
NOTE:
If DTC P2135 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.
Refer to EC-400
.
FAIL-SAFE MODE
When the malfunction is detected, the ECM enters fail-safe mode and the MIL lights up.
DTC Confirmation ProcedureINFOID:0000000001703028
NOTE:
If DTC Confirmation Procedure has been previously conducted, 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 8V at idle.
WITH CONSULT-II
1. Turn ignition switch ON.
PBIB0145E
MONITOR ITEM CONDITION SPECIFICATION
THRTL SEN 1
THRTL SEN 2*• Ignition switch: ON
(Engine stopped)Accelerator pedal: Fully released More than 0.36V
• Shift lever: D (A/T, CVT), 1st (M/T) Accelerator pedal: Fully depressed Less than 4.75V
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2135
2135Throttle position sensor
circuit range/performanceRationally incorrect voltage is sent to ECM
compared with the signals from TP sensor 1
and TP sensor 2.• Harness or connector
(TP sensor 1 and 2 circuit is open or short-
ed.)
• Electric throttle control actuator
(TP sensor 1 and 2)
Engine operation condition in fail-safe mode
The ECM controls the electric throttle control actuator in regulating the throttle opening in order for the idle position to be within +10
degrees.
The ECM regulates the opening speed of the throttle valve to be slower than the normal condition.
So, the acceleration will be poor.

Page 1562 of 2771

NISSAN LATIO 2008 Service Repair Manual EC-488
< SERVICE INFORMATION >
DTC P2135 TP SENSOR
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for 1 second.
4. If DTC is detected, go to EC-490, "
Diagnosis

Page 1563 of 2771

NISSAN LATIO 2008 Service Repair Manual DTC P2135 TP SENSOR
EC-489
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Wiring DiagramINFOID:0000000001703029
Specification data are reference values and are measured between each terminal

Page 1564 of 2771

NISSAN LATIO 2008 Service Repair Manual EC-490
< SERVICE INFORMATION >
DTC P2135 TP SENSOR
Diagnosis Procedure
INFOID:0000000001703030
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten ground screw on the body.

Page 1565 of 2771

NISSAN LATIO 2008 Service Repair Manual DTC P2135 TP SENSOR
EC-491
< SERVICE INFORMATION >
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1. Disconnect electric throttle control actuator (1) harness connec-
tor.
- : Vehicle front
2. Turn ignition switch O

Page 1566 of 2771

NISSAN LATIO 2008 Service Repair Manual EC-492
< SERVICE INFORMATION >
DTC P2135 TP SENSOR
3. Perform EC-76, "Idle Air Volume Learning".
>>INSPECTION END
7.CHECK INTERMITTENT INCIDENT
Refer to EC-136
.
>>INSPECTION END
Component Ins

Page 1567 of 2771

NISSAN LATIO 2008 Service Repair Manual DTC P2138 APP SENSOR
EC-493
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DTC P2138 APP SENSOR
Component DescriptionINFOID:0000000001703033
The accelerator pedal position sensor is installed

DTC P2138 APP SENSOR
EC-493
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DTC P2138 APP SENSOR
Component DescriptionINFOID:0000000001703033
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 potentiometers which transform the accelerator pedal
position into output voltage, and emit the voltage signal to the ECM.
In addition, these sensors detect the opening and closing speed of
the accelerator pedal and feed the voltage signals 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 oper-
ation such as fuel cut.
CONSULT-II Reference Value in Data Monitor ModeINFOID:0000000001703034
Specification data are reference values.
*: Accelerator pedal position sensor 2 signal is converted by ECM internally. Thus, it differs from ECM terminal voltage.
On Board Diagnosis LogicINFOID:0000000001703035
This self-diagnosis has the one trip detection logic.
NOTE:
If DTC P2138 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.
Refer to EC-400
.
FAIL-SAFE MODE
When the malfunction is detected, ECM enters fail-safe mode and the MIL lights up.
PBIB1741E
MONITOR ITEM CONDITION SPECIFICATION
ACCEL SEN 1• Ignition switch: ON
(Engine stopped)Accelerator pedal: Fully released 0.6 - 0.9V
Accelerator pedal: Fully depressed 4.0 - 4.8V
ACCEL SEN 2*• Ignition switch: ON
(Engine stopped)Accelerator pedal: Fully released 0.6 - 0.9V
Accelerator pedal: Fully depressed 3.9 - 4.8V
CLSD THL POS• Ignition switch: ON
(Engine stopped)Accelerator pedal: Fully released ON
Accelerator pedal: Slightly depressed OFF
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2138
2138Accelerator pedal posi-
tion sensor circuit range/
performanceRationally incorrect voltage is sent to ECM
compared with the signals from APP sensor 1
and APP sensor 2.• Harness or connector
(APP sensor 1 and 2 circuit is open or
shorted.)
[Crankshaft position sensor (POS) circuit
is shorted.]
(EVAP control system pressure sensor
circuit is shorted.)
(Refrigerant pressure sensor circuit is
shorted.)
• Accelerator pedal position sensor
(APP sensor 1 and 2)
• Crankshaft position sensor (POS)
• EVAP control system pressure sensor
• Refrigerant pressure sensor

Page 1568 of 2771

NISSAN LATIO 2008 Service Repair Manual EC-494
< SERVICE INFORMATION >
DTC P2138 APP SENSOR
DTC Confirmation Procedure
INFOID:0000000001703036
NOTE:
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OF

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