2001 NISSAN X-TRAIL Service Repair Manual

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Page 977 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P1805 BRAKE SWITCH
EC-627
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Wiring DiagramEBS00NJ4
TBWA0332E

Page 978 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-628
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DTC P1805 BRAKE SWITCH
Diagnostic Procedure
EBS00NJ5
1. CHECK STOP LAMP SWITCH CIRCUIT
1. Turn ignition switch “OFF”.
2. Check the stop lamp when depressing and rel

Page 979 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P1805 BRAKE SWITCH
EC-629
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4.CHECK STOP LAMP SWITCH INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect ECM h

Page 980 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-630
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DTC P1805 BRAKE SWITCH
2. Check continuity between stop lamp switch terminals 1 and 2
under the following conditions.
3. If NG, replace stop lamp switch.
Condi

Page 981 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P2122, P2123 APP SENSOR
EC-631
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DTC P2122, P2123 APP SENSORPFP:18002
Component DescriptionEBS00NJ7
The accelerator pedal position sensor is

DTC P2122, P2123 APP SENSOR
EC-631
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DTC P2122, P2123 APP SENSORPFP:18002
Component DescriptionEBS00NJ7
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 ModeEBS00NJ8
Specification data are reference values.
*: Accelerator pedal position sensor 2 signal is converted by ECM. Thus, it differs from ECM terminals voltage signal.
ECM Terminals and Reference ValueEBS00NJ9
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.
PBIB0146E
MONITOR ITEM CONDITION SPECIFICATION
ACCEL SEN1
●Ignition switch: ON
(Engine stopped)Accelerator pedal: Fully released 0.41 - 0.72V
Accelerator pedal: Fully depressed 3.2 - 4.9V
ACCEL SEN*
●Ignition switch: ON
(Engine stopped)Accelerator pedal: Fully released 0.15 - 0.98V
Accelerator pedal: Fully depressed 2.98 - 4.9V
CLSD THL POS
●Ignition switch: ON
(Engine stopped)Accelerator pedal: Fully released ON
Accelerator pedal: Slightly depressed OFF
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
58 B Sensors' ground[Engine is running]
●Warm-up condition
●Idle speedApproximately 0V
65 R Sensor's power supply[Ignition switch “ON”]Approximately 5V
75 R/LAccelerator pedal position
sensor 1[Ignition switch “ON”]
●Engine stopped
●Accelerator pedal fully released0.41 - 0.72V
[Ignition switch “ON”]
●Engine stopped
●Accelerator pedal fully depressedMore than 3.2V
76 W/BAccelerator pedal position
sensor 2[Ignition switch “ON”]
●Engine stopped
●Accelerator pedal fully released0.15 - 0.48V
[Ignition switch “ON”]
●Engine stopped
●Accelerator pedal fully depressedMore than 1.49V

Page 982 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-632
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DTC P2122, P2123 APP SENSOR
On Board Diagnosis Logic
EBS00NJA
These self-diagnoses have the one trip detection logic.
FAIL-SAFE MODE
When the malfunction is detected, t

Page 983 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P2122, P2123 APP SENSOR
EC-633
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Wiring DiagramEBS00NJC
TBWA0326E

Page 984 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-634
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DTC P2122, P2123 APP SENSOR
Diagnostic Procedure
EBS00NJD
1. RETIGHTEN GROUND SCREWS
1. Turn ignition switch “OFF”.
2. Loosen and retighten engine ground screws.
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