2001 NISSAN X-TRAIL Service Repair Manual

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Page 1617 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P0650 MI
EC-1267
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EC
Diagnostic ProcedureEBS00N77
1.CHECK MI POWER SUPPLY
1. Turn ignition switch “OFF”.
2. Disconnect combination meter harness

Page 1618 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-1268
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DTC P0650 MI
5. CHECK COMBINATION METER
1. Turn ignition switch “OFF”.
2. Disconnect combination meter harness connector.
3. Check continuity under the following c

Page 1619 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P1065 ECM POWER SUPPLY
EC-1269
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DTC P1065 ECM POWER SUPPLYPFP:23710
Component DescriptionEBS00N78
Battery voltage is supplied to the ECM even when

Page 1620 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-1270
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DTC P1065 ECM POWER SUPPLY
Wiring Diagram
EBS00N7B
TBWA0129E

Page 1621 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P1065 ECM POWER SUPPLY
EC-1271
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Diagnostic ProcedureEBS00N7C
1.CHECK ECM POWER SUPPLY
1. Turn ignition switch “OFF”.
2. Disconnect ECM harness

Page 1622 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-1272
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DTC P1065 ECM POWER SUPPLY
5. REPLACE ECM
1. Replace ECM.
2. Perform initialization of NATS system and registration of all NATS ignition key IDs. Refer t

Page 1623 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATOR
EC-1273
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DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATORPFP:16119
DescriptionEBS00N7D
Electric Throttle Cont

DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATOR
EC-1273
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DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATORPFP:16119
DescriptionEBS00N7D
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 LogicEBS00N7E
FAIL-SAFE MODE
When the malfunction A or B is detected in the two consecutive trips, the ECM enters fail-safe mode and the
MI lights up.
When the malfunction C is detected even in the 1st trip, the ECM enters fail-safe mode and the MI lights up.
DTC Confirmation ProcedureEBS00N7F
NOTE:
●Perform “PROCEDURE FOR MALFUNCTION A AND B” first. If the 1st trip DTC cannot be con-
firmed, perform “PROCEDURE FOR MALFUNCTION C”.
If there is no malfunction on “PROCEDURE FOR MALFUNCTION A AND B”, perform “PROCE-
DURE 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 2 seconds.
4. Turn ignition switch “OFF”, wait at least 10 seconds, and then
turn “ON”.
5. If 1st trip DTC is detected, go to EC-1274, "
Diagnostic Proce-
dure" .
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1121
11 2 1Electric throttle control
actuatorA)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 detects the throttle valve is stuck open.
This self-diagnosis has the one trip detec-
tion logic.
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 1624 of 3833

NISSAN X-TRAIL 2001 Service Repair Manual EC-1274
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DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATOR
Without CONSULT-II
1. Turn ignition switch “ON” and wait at least 1 second.
2. Shift selector lever to “D” positi

EC-1274
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DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATOR
Without CONSULT-II
1. Turn ignition switch “ON” and wait at least 1 second.
2. Shift selector lever to “D” position (A/T models), “1st” position (M/T models) and wait at least 2 seconds.
3. Turn ignition switch “OFF”, wait at least 10 seconds, and then turn “ON”.
4. Perform “Diagnostic Test Mode II (Self-diagnostic results)” with ECM.
5. If 1st trip DTC is detected, go to EC-1274, "
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 2 seconds.
4. Shift selector lever to “N” or “P” position.
5. Start engine and let it idle for 3 seconds.
6. If 1st trip DTC is detected, go to EC-1274, "
Diagnostic Proce-
dure" .
Without CONSULT-II
1. Turn ignition switch “ON” and wait at least 1 second.
2. Shift selector lever to “D” position (A/T models), “1st” position (M/T models) and wait at least 2 seconds.
3. Shift selector lever to “N” or “P” position.
4. Start engine and let it idle for 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 1st trip DTC is detected, go to EC-1274, "
Diagnostic Procedure" .
Diagnostic ProcedureEBS00N7G
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-1136, "
Throttle Valve Closed Position Learning" .
3. Perform EC-1137, "
Idle Air Volume Learning" .
>>INSPECTION END
SEF058Y
PBIB0518E

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