2005 NISSAN X-TRAIL Service Repair Manual

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Page 633 of 4555

NISSAN X-TRAIL 2005 Service Repair Manual DTC P0172 FUEL INJECTION SYSTEM FUNCTION
EC-229
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5. CHECK MASS AIR FLOW SENSOR
With CONSULT-II
1. Install all removed parts.
2. Check “MASS AIR FLOW�

Page 634 of 4555

NISSAN X-TRAIL 2005 Service Repair Manual EC-230
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DTC P0172 FUEL INJECTION SYSTEM FUNCTION

7. CHECK INJECTOR
1. Remove injector assembly. Refer to EM-34, "
FUEL INJECTOR AND FUEL TUBE" .
Keep fuel hose and all injectors

Page 635 of 4555

NISSAN X-TRAIL 2005 Service Repair Manual DTC P0222, P0223 TP SENSOR
EC-231
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DTC P0222, P0223 TP SENSORPFP:16119
Component DescriptionEBS010PB
Electric throttle control actuator consists of thro

DTC P0222, P0223 TP SENSOR
EC-231
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DTC P0222, P0223 TP SENSORPFP:16119
Component DescriptionEBS010PB
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 ModeEBS010PC
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 LogicEBS010PD
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 ProcedureEBS010PE
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 SEN 1
THRTL SEN 2*
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
P0222
0222Throttle position sensor 1
circuit low inputAn excessively low voltage from the TP sensor 1
is sent to ECM.
Harness or connectors
(TP sensor 1 circuit is open or shorted.)
(APP sensor 2 circuit is shorted.)
Electric throttle control actuator
(TP sensor 1)
Accelerator pedal position sensor
(APP sensor 2) P0223
0223Throttle position sensor 1
circuit high inputAn excessively high voltage from the TP sensor
1 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 636 of 4555

NISSAN X-TRAIL 2005 Service Repair Manual EC-232
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DTC P0222, P0223 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

Page 637 of 4555

NISSAN X-TRAIL 2005 Service Repair Manual DTC P0222, P0223 TP SENSOR
EC-233
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Wiring DiagramEBS010PF
TBWB0261E

Page 638 of 4555

NISSAN X-TRAIL 2005 Service Repair Manual EC-234
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DTC P0222, P0223 TP SENSOR

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

Page 639 of 4555

NISSAN X-TRAIL 2005 Service Repair Manual DTC P0222, P0223 TP SENSOR
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Diagnostic ProcedureEBS010PG
1. CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three g

Page 640 of 4555

NISSAN X-TRAIL 2005 Service Repair Manual EC-236
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DTC P0222, P0223 TP SENSOR

2. CHECK THROTTLE POSITION SENSOR 1 POWER SUPPLY CIRCUIT-I
1. Disconnect electric throttle control actuator harness connector.
2. Turn ignition

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