Nissan Pathfinder (2006 year). Manual — part 215
DTC P2118 THROTTLE CONTROL MOTOR
EC-579
C
D
E
F
G
H
I
J
K
L
M
A
EC
2006 Pathfinder
Removal and Installation
UBS00KCO
ELECTRIC THROTTLE CONTROL ACTUATOR
Refer to
EM-17, "INTAKE MANIFOLD COLLECTOR"
.
EC-580
DTC P2119 ELECTRIC THROTTLE CONTROL ACTUATOR
2006 Pathfinder
DTC P2119 ELECTRIC THROTTLE CONTROL ACTUATOR
PFP:16119
Component Description
UBS00KC1
Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc.
The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
The throttle position sensor detects the throttle valve position, and the opening and closing speed of the throt-
tle valve and feeds 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.
On Board Diagnosis Logic
UBS00KC2
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 MIL lights up.
DTC Confirmation Procedure
UBS00KC3
NOTE:
●
Perform PROCEDURE FOR MALFUNCTION A AND B first. If the DTC cannot be confirmed, perform
PROCEDURE FOR MALFUNCTION C.
●
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait
at least 10 seconds before conducting the next test.
PROCEDURE FOR MALFUNCTION A AND B
With CONSULT-II
1.
Turn ignition switch ON and wait at least 1 second.
2.
Select “DATA MONITOR” mode with CONSULT-II.
3.
Shift selector lever to D position and wait at least 3 seconds.
4.
Shift selector lever to P position.
5.
Turn ignition switch OFF and wait at least 10 seconds.
6.
Turn ignition switch ON and wait at least 1 second.
7.
Shift selector lever to D position, and wait at least 3 seconds.
8.
Shift selector lever to P position.
9.
Turn ignition switch OFF, wait at least 10 seconds, and then turn
ON.
10. If DTC is detected, go to
EC-581, "Diagnostic Procedure"
With GST
Follow the procedure “With CONSULT-II” above.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P2119
2119
Electric throttle control
actuator
A)
Electric throttle control actuator does not func-
tion properly due to the return spring malfunc-
tion.
●
Electric throttle control actuator
B)
Throttle valve opening angle in fail-safe mode is
not in specified range.
C)
ECM detect the throttle valve is stuck open.
Detected items
Engine operating condition in fail-safe mode
Malfunction A
The ECM controls the electric throttle actuator by regulating the throttle opening around the idle position.
The engine speed will not rise more than 2,000 rpm.
Malfunction B
ECM controls the electric throttle control actuator by regulating the throttle opening to 20 degrees or less.
Malfunction C
While the vehicle is driving, it slows down gradually by fuel cut. After the vehicle stops, the engine stalls.
The engine can restart in N or P position, and engine speed will not exceed 1,000 rpm or more.
SEF058Y
DTC P2119 ELECTRIC THROTTLE CONTROL ACTUATOR
EC-581
C
D
E
F
G
H
I
J
K
L
M
A
EC
2006 Pathfinder
PROCEDURE FOR MALFUNCTION C
With CONSULT-II
1.
Turn ignition switch ON and wait at least 1 second.
2.
Select “DATA MONITOR” mode with CONSULT-II.
3.
Shift selector lever to D position and wait at least 3 seconds.
4.
Shift selector lever to P or N position.
5.
Start engine and let it idle for 3 seconds.
6.
If DTC is detected, go to
EC-581, "Diagnostic Procedure"
With GST
Follow the procedure “With CONSULT-II” above.
Diagnostic Procedure
UBS00KC4
1.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1.
Remove the intake air duct.
2.
Check if a foreign matter is caught between the throttle valve
and the housing.
OK or NG
OK
>> GO TO 2.
NG
>> Remove the foreign matter and clean the electric throttle
control actuator inside.
2.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1.
Replace the electric throttle control actuator.
2.
Perform
EC-77, "Throttle Valve Closed Position Learning"
.
3.
Perform
EC-77, "Idle Air Volume Learning"
.
>> INSPECTION END
SEF058Y
BBIA0554E
EC-582
DTC P2122, P2123 APP SENSOR
2006 Pathfinder
DTC P2122, P2123 APP SENSOR
PFP:18002
Component Description
UBS00KGZ
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 Mode
UBS00KH0
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 Logic
UBS00KH1
These self-diagnoses have the one trip detection logic.
NOTE:
If DTC P2122 or P2123 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.
Refer to
EC-479, "DTC P0643 SENSOR POWER SUPPLY"
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
0.65 - 0.87V
Accelerator pedal: Fully depressed
More than 4.3V
ACCEL SEN 2*
●
Ignition switch: ON
(Engine stopped)
Accelerator pedal: Fully released
0.56 - 0.96V
Accelerator pedal: Fully depressed
More than 4.0V
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
P2122
2122
Accelerator pedal posi-
tion sensor 1 circuit low
input
An excessively low voltage from the APP sen-
sor 1 is sent to ECM.
●
Harness or connectors
(The APP sensor 1 circuit is open or
shorted.)
●
Accelerator pedal position sensor
(APP sensor 1)
P2123
2123
Accelerator pedal posi-
tion sensor 1 circuit high
input
An excessively high voltage from the APP sen-
sor 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 the throttle valve to be slower than the normal condition.
So, the acceleration will be poor.
DTC P2122, P2123 APP SENSOR
EC-583
C
D
E
F
G
H
I
J
K
L
M
A
EC
2006 Pathfinder
DTC Confirmation Procedure
UBS00KH2
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.
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 DTC is detected, go to
EC-585, "Diagnostic Procedure"
WITH GST
Follow the procedure “WITH CONSULT-II” above.
SEF058Y
EC-584
DTC P2122, P2123 APP SENSOR
2006 Pathfinder
Wiring Diagram
UBS00KH3
BBWA1747E
DTC P2122, P2123 APP SENSOR
EC-585
C
D
E
F
G
H
I
J
K
L
M
A
EC
2006 Pathfinder
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals when measuring input/output voltage. Doing so may result in dam-
age to the ECM's transistor. Use a ground other than ECM terminals, such as the ground.
Diagnostic Procedure
UBS00KH4
1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF.
2.
Loosen and retighten three ground screws on the body. Refer to
.
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace ground connections.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
82
B
Sensor ground
(APP sensor 1)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
83
GR
Sensor ground
(APP sensor 2)
[Engine is running]
●
Warm-up condition
●
Idle speed
Approximately 0V
90
L
Sensor power supply
(APP sensor 1)
[Ignition switch: ON]
Approximately 5V
91
G
Sensor power supply
(APP sensor 2)
[Ignition switch: ON]
Approximately 5V
98
GR
Accelerator pedal position
sensor 2
[Ignition switch: ON]
●
Engine: Stopped
●
Accelerator pedal: Fully released
0.28 - 0.48V
[Ignition switch: ON]
●
Engine: Stopped
●
Accelerator pedal: Fully depressed
More than 2.0V
106
R
Accelerator pedal position
sensor 1
[Ignition switch: ON]
●
Engine: Stopped
●
Accelerator pedal: Fully released
0.65 - 0.87V
[Ignition switch: ON]
●
Engine: Stopped
●
Accelerator pedal: Fully depressed
More than 4.3V
BBIA0539E
EC-586
DTC P2122, P2123 APP SENSOR
2006 Pathfinder
2.
CHECK APP SENSOR 1 POWER SUPPLY CIRCUIT
1.
Disconnect accelerator pedal position (APP) sensor harness connector.
2.
Turn ignition switch ON.
3.
Check voltage between APP sensor terminal 2 and ground with
CONSULT-II or tester.
OK or NG
OK
>> GO TO 3.
NG
>> Repair open circuit or short to ground or short to power
in harness or connectors.
3.
CHECK APP SENSOR 1 GROUND CIRCUIT FOR OPEN AND SHORT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Check harness continuity between APP sensor terminal 4 and ECM terminal 82.
Refer to Wiring Diagram.
4.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 4.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
4.
CHECK APP SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1.
Check harness continuity between ECM terminal 106 and APP sensor terminal 3.
Refer to Wiring Diagram.
2.
Also check harness for short to ground and short to power.
OK or NG
OK
>> GO TO 5.
NG
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK APP SENSOR
EC-587, "Component Inspection"
OK or NG
OK
>> GO TO 7.
NG
>> GO TO 6.
Voltage: Approximately 5V
BBIA0556E
PBIB2608E
Continuity should exist.
Continuity should exist.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст