2001 NISSAN X-TRAIL Service Repair Manual

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Page 945 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY
EC-595
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EC
Wiring DiagramEBS00NI1
TBWA0153E

Page 946 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-596
[QR25(WITHOUT EURO-OBD)]
DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY
Diagnostic Procedure
EBS00NI2
1. CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY
1. Turn ignition switch “OFF”.
2. Dis

Page 947 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY
EC-597
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5.CHECK THROTTLE CONTROL MOTOR RELAY OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Check continuit

Page 948 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-598
[QR25(WITHOUT EURO-OBD)]
DTC P1128 THROTTLE CONTROL MOTOR
DTC P1128 THROTTLE CONTROL MOTOR
PFP:16119
Component DescriptionEBS00NI4
The throttle control motor is operated by the ECM and it opens

EC-598
[QR25(WITHOUT EURO-OBD)]
DTC P1128 THROTTLE CONTROL MOTOR
DTC P1128 THROTTLE CONTROL MOTOR
PFP:16119
Component DescriptionEBS00NI4
The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
The current opening angle of the throttle valve is detected by the throttle position sensor and it provides feed-
back to the ECM to control the throttle control motor to make the throttle valve opening angle properly in
response to driving condition.
ECM Terminals and Reference ValueEBS00NI5
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
On Board Diagnosis LogicEBS00NI6
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 MI lights up.
DTC Confirmation ProcedureEBS00NI7
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.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
11 4 RThrottle control motor
(Open)[Ignition switch “ON”]
●Engine stopped
●Gear position is “D” (A/T model)
●Gear position is “1st” (M/T model)
●Accelerator pedal is depressing0 - 14V
11 5 B / YThrottle control motor
ground[Engine is running]
●Idle speedApproximately 0V
11 6 GThrottle control motor
(Close)[Ignition switch “ON”]
●Engine stopped
●Gear position is “D” (A/T model)
●Gear position is “1st” (M/T model)
●Accelerator pedal is releasing0 - 14V
PBIB0533E
PBIB0534E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1128
11 2 8Throttle control motor
circuit shortECM detects short in both circuits between
ECM and throttle control motor.
●Harness or connectors
(Throttle control motor circuit is shorted.)
●Electric throttle control actuator
(Throttle control motor)
Engine operating condition in fail-safe mode
ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return
spring.

Page 949 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P1128 THROTTLE CONTROL MOTOR
EC-599
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WITH CONSULT-II
1. Turn ignition switch “ON” and wait at least 2 seconds.
2. Select “DATA MONITOR” m

Page 950 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-600
[QR25(WITHOUT EURO-OBD)]
DTC P1128 THROTTLE CONTROL MOTOR
Wiring Diagram
EBS00NI8
TBWA0186E

Page 951 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P1128 THROTTLE CONTROL MOTOR
EC-601
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Diagnostic ProcedureEBS00NI9
1.RETIGHTEN GROUND SCREWS
1. Turn ignition switch “OFF”.
2. Loosen and retig

Page 952 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-602
[QR25(WITHOUT EURO-OBD)]
DTC P1128 THROTTLE CONTROL MOTOR
Component Inspection
EBS00NIA
THROTTLE CONTROL MOTOR
1. Disconnect electric throttle control actuator harness connector.
2. Check resis

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