2003 NISSAN X-TRAIL Service Repair Manual

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Page 1129 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual DTC P2127, P2128 APP SENSOR
EC-751
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Diagnostic ProcedureEBS0112L
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten thr

Page 1130 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual EC-752
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DTC P2127, P2128 APP SENSOR

2. CHECK APP SENSOR 2 POWER SUPPLY CIRCUIT-I
1. Disconnect accelerator pedal position (APP) sensor harness
connector.
2. Turn ignition swit

Page 1131 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual DTC P2127, P2128 APP SENSOR
EC-753
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6. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace the electric throttle control actuator.
2. Perform EC-50

Page 1132 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual EC-754
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DTC P2127, P2128 APP SENSOR

Component InspectionEBS0112M
ACCELERATOR PEDAL POSITION SENSOR
1. Reconnect all harness connectors disconnected.
2. Turn ignition switch ON

Page 1133 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual DTC P2135 TP SENSOR
EC-755
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DTC P2135 TP SENSORPFP:16119
Component DescriptionEBS0112O
Electric throttle control actuator consists of throttle contro

DTC P2135 TP SENSOR
EC-755
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DTC P2135 TP SENSORPFP:16119
Component DescriptionEBS0112O
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 the 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 addi-
tion, 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 sig-
nals and the ECM controls the throttle control motor to make the
throttle valve opening angle properly in response to driving condi-
tion.
CONSULT-II Reference Value in Data Monitor ModeEBS0112P
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 LogicEBS0112Q
This self-diagnosis has the one trip detection logic.
FAIL-SAFE MODE
When the malfunction is detected, the ECM enters fail-safe mode and the MI lights up.
DTC Confirmation ProcedureEBS0112R
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 10V at idle.
PBIB0145E
MONITOR ITEM CONDITION SPECIFICATION
THRTL SEN1
THRTL SEN2*
Ignition switch: ON
(Engine stopped)Accelerator pedal: Fully released More than 0.36V
Shift lever: D (A/T), 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/performance
problemRationally 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
shorted.)
(APP sensor 2 circuit is shorted.)
Electric throttle control actuator
(TP sensor 1 and 2)
Accelerator pedal position sensor
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 1134 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual EC-756
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DTC P2135 TP SENSOR

WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and let it idle for 1 second.
4. If

Page 1135 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual DTC P2135 TP SENSOR
EC-757
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Wiring DiagramEBS0112S
TBWB0264E

Page 1136 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual EC-758
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DTC P2135 TP SENSOR

Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring

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