2003 NISSAN ALMERA N16 Electronic Repair Manual

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Page 873 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P0227, P0228 APP SENSOR
EC-543
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DTC P0227, P0228 APP SENSORPFP:18002
Component DescriptionEBS00KH8
The accelerator pedal position sensor is i

DTC P0227, P0228 APP SENSOR
EC-543
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DTC P0227, P0228 APP SENSORPFP:18002
Component DescriptionEBS00KH8
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 ModeEBS00KH9
Specification data are reference values.
*: Accelerator pedal position sensor 2 signal is converted by ECM internally. Thus, it differs from ECM terminal voltage signal.
On Board Diagnosis LogicEBS00KHA
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 ProcedureEBS00KHB
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.
PBIB0146E
MONITOR ITEM CONDITION SPECIFICATION
ACCEL SEN1
ACCEL SEN2*
●Ignition switch: ON
(engine stopped)Accelerator pedal: Fully released 0.35 - 0.67V
Accelerator pedal: Fully depressed More than 3.9V
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
P0227
0227Accelerator pedal position
sensor 1 circuit low inputAn excessively low voltage from the APP sensor 1
is sent to ECM.
●Harness or connectors
(The APP sensor 1 circuit is open or
shorted.)
●Accelerator pedal position sensor
(Accelerator pedal position sensor 1) P0228
0228Accelerator pedal position
sensor 1 circuit high inputAn excessively high voltage from the APP sensor 1
is sent to ECM.
Engine operating 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 throttle valve to be slower than the normal condition.
So, the acceleration will be poor.

Page 874 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual EC-544
[QG (WITHOUT EURO-OBD)]
DTC P0227, P0228 APP 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 s

Page 875 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P0227, P0228 APP SENSOR
EC-545
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Wiring DiagramEBS00KHC
YEC289A

Page 876 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual EC-546
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DTC P0227, P0228 APP SENSOR
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when meas

Page 877 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P0227, P0228 APP SENSOR
EC-547
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2.CHECK APP SENSOR 1 POWER SUPPLY CIRCUIT
1. Disconnect accelerator pedal position (APP) sensor harness
conne

Page 878 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual EC-548
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DTC P0227, P0228 APP SENSOR
6. CHECK APP SENSOR 1 INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check harness continuity between ECM terminal 106 and APP sensor terminal 3.

Page 879 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P0227, P0228 APP SENSOR
EC-549
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4. If NG, replace accelerator pedal assembly and go to the next step.
5. Perform EC-425, "
Accelerator Pedal Re

Page 880 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual EC-550
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DTC P0327, P0328 KS
DTC P0327, P0328 KS
PFP:22060
Component DescriptionEBS00KHG
The knock sensor is attached to the cylinder block. It senses engine
knocking using a

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