2003 NISSAN X-TRAIL Service Repair Manual

traction control seat adjustment wiper size rear view mirror headlights immobilizer

Page 545 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual DTC P0117, P0118 ECT SENSOR
EC-167
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Component InspectionEBS010NL
ENGINE COOLANT TEMPERATURE SENSOR
1. Check resistance between engine coolant temperatur

Page 546 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual EC-168
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DTC P0122, P0123 TP SENSOR

DTC P0122, P0123 TP SENSORPFP:16119
Component DescriptionEBS010NN
Electric throttle control actuator consists of throttle control motor,
thrott

EC-168
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DTC P0122, P0123 TP SENSOR

DTC P0122, P0123 TP SENSORPFP:16119
Component DescriptionEBS010NN
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 ModeEBS010NO
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 LogicEBS010NP
These self-diagnoses have 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 ProcedureEBS010NQ
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
P0122
0122Throttle position sensor 2
circuit low inputAn excessively low voltage from the TP sensor 2
is sent to ECM.
Harness or connectors
(TP sensor 2 circuit is open or
shorted.)
(APP sensor 2 circuit is shorted.)
Electric throttle control actuator
(TP sensor 2)
Accelerator pedal position sensor P0123
0123Throttle position sensor 2
circuit high inputAn excessively high voltage from the TP sensor 2
is sent to ECM.
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 547 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual DTC P0122, P0123 TP SENSOR
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WITH CONSULT-II
1. Turn ignition switch ON.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Start engine and l

Page 548 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual EC-170
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DTC P0122, P0123 TP SENSOR

Wiring DiagramEBS010NR
TBWB0260E

Page 549 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual DTC P0122, P0123 TP SENSOR
EC-171
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Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM gr

Page 550 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual EC-172
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DTC P0122, P0123 TP SENSOR

Diagnostic ProcedureEBS010NS
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body.

Page 551 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual DTC P0122, P0123 TP SENSOR
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2. CHECK THROTTLE POSITION SENSOR 2 POWER SUPPLY CIRCUIT-I
1. Disconnect electric throttle control actuator harness c

Page 552 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual EC-174
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DTC P0122, P0123 TP SENSOR

4. CHECK THROTTLE POSITION SENSOR 2 POWER SUPPLY CIRCUIT-III
Check harness for short to power and short to ground, between the following termin

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