2003 NISSAN X-TRAIL Service Repair Manual

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Page 1041 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual DTC P0605 ECM
EC-663
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Diagnostic ProcedureEBS0110B
1. INSPECTION START
With CONSULT-II
1. Turn ignition switch ON.
2. Select “SELF DIAG RESULTS”

Page 1042 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual EC-664
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DTC P1065 ECM POWER SUPPLY

DTC P1065 ECM POWER SUPPLYPFP:23710
Component DescriptionEBS0110C
Battery voltage is supplied to the ECM even when the ignition switch
is tu

Page 1043 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual DTC P1065 ECM POWER SUPPLY
EC-665
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Wiring DiagramEBS0110F
TBWA0611E

Page 1044 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual EC-666
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DTC P1065 ECM POWER SUPPLY

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

Page 1045 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual DTC P1065 ECM POWER SUPPLY
EC-667
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4. PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT-II
1. Turn ignition switch ON.
2. Select “SELF DIAG RESULTS�

Page 1046 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual EC-668
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DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATOR

DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATORPFP:16119
Component DescriptionEBS0110H
Electric throttle control actuator con

EC-668
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DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATOR

DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATORPFP:16119
Component DescriptionEBS0110H
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 LogicEBS0110I
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 ProcedureEBS0110J
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 witch ON and wait at least 1 second.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Shift selector lever to D position (A/T), 1st position (M/T) and
wait at least 3 seconds.
4. Shift selector lever to P position (A/T), Neutral position (M/T).
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 (A/T), 1st position (M/T) and
wait at least 3 seconds.
8. Shift selector lever to P position (A/T), Neutral position (M/T).
9. Turn ignition switch OFF, wait at least 10 seconds, and then turn
ON.
10. If DTC is detected, go to EC-669, "
Diagnostic Procedure" .
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1121
1121Electric throttle control
actuatorA)Electric throttle control actuator does not function
properly due to the return spring malfunction.
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 AThe 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 CWhile 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

Page 1047 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATOR
EC-669
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Without CONSULT-II
1. Turn ignition switch ON and wait at least 1 second.
2. Shift selector lev

DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATOR
EC-669
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Without CONSULT-II
1. Turn ignition switch ON and wait at least 1 second.
2. Shift selector lever to D position (A/T), 1st position (M/T) and wait at least 3 seconds.
3. Shift selector lever to P position (A/T), Neutral position (M/T).
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Turn ignition switch ON and wait at least 1 second.
6. Shift selector lever to D position (A/T), 1st position (M/T) and wait at least 3 seconds.
7. Shift selector lever to P position (A/T), Neutral position (M/T).
8. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
9. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
10. If DTC is detected, go to EC-669, "
Diagnostic Procedure" .
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 (A/T), 1st position (M/T) and
wait at least 3 seconds.
4. Shift selector lever to P position (A/T), Neutral position (M/T).
5. Start engine and let it idle for 3 seconds.
6. If DTC is detected, go to EC-669, "
Diagnostic Procedure" .
Without CONSULT-II
1. Turn ignition switch ON and wait at least 1 second.
2. Shift selector lever to D position (A/T), 1st position (M/T) and wait at least 3 seconds.
3. Shift selector lever to P position (A/T), Neutral position (M/T).
4. Start engine and let it idle for the 3 seconds.
5. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
6. Perform Diagnostic Test Mode II (Self-diagnostic results) with ECM.
7. If DTC is detected, go to EC-669, "
Diagnostic Procedure" .
Diagnostic ProcedureEBS0110K
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.
SEF058Y
PBIB0518E

Page 1048 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual EC-670
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DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATOR

2. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace the electric throttle control actuator.
2. Perform EC-508, "
Thro

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