NISSAN X-TRAIL 2003 Electronic Repair Manual

DTC P1111 IVT CONTROL SOLENOID VALVE
EC-267
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DTC Confirmation ProcedureEBS00B7T
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.
WITH CONSULT-II
1. Turn ignition switch "ON".
2. Select "DATA MONITOR" mode with CONSULT-II.
3. Start engine and let it idle for 5 seconds.
4. If 1st trip DTC is detected, go toEC-269, "
Diagnostic Procedure"
.
WITH GST
Following the procedure "WITH CONSULT-II" above.
SEF058Y

EC-268
[QR (WITH EURO-OBD)]
DTC P1111 IVT CONTROL SOLENOID VALVE
Wiring Diagram
EBS00B7U
TBWA0070E

DTC P1111 IVT CONTROL SOLENOID VALVE
EC-269
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Diagnostic ProcedureEBS00B7V
1.CHECK POWER SUPPLY CIRCIUT
1. Turn ignition switch "OFF".
2. Disconnect intake valve timing control solenoid valve harness connector.
3. Turn ignition switch "ON".
4. Check voltage between intake valve timing control solenoid
valve terminal 1 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2.DETECT MALFUNCTION PART
Check the harness for open or short between intake valve timing control solenoid valve and ECM relay.
>> Repair harness or connectors.
3.CHECK INTAKE VALVE TIMING CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT FOR
OPEN AND SHORT
1. Turn ignition switch "OFF".
2. Disconnect ECM harness connector.
3. Check harness continuity between ECM terminal 107 and intake valve timing control solenoid valve termi-
nal 2. 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 INTAKE VALVE TIMING CONTROL SOLENOID VALVE
Refer toEC-270, "
Component Inspection".
OK or NG
OK >> GO TO 5.
NG >> Replace intake valve timing control solenoid valve.Voltage: Battery voltage
PBIB0511E
PBIB0285E
Continuity should exist.

EC-270
[QR (WITH EURO-OBD)]
DTC P1111 IVT CONTROL SOLENOID VALVE
5.CHECK INTERMITTENT INCIDENT
Refer toEC-107, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT".
>>INSPECTION END
Component InspectionEBS00B7W
INTAKE VALVE TIMING CONTROL SOLENOID VALVE
1. Disconnect intake valve timing control solenoid valve harness connector.
2. Check resistance between intake valve timing control solenoid
valve terminals 1 and 2.
Removal and InstallationEBS00B7X
INTAKE VALVE TIMING CONTROL SOLENOID VALVE
Refer toEM-43, "TIMING CHAIN".
Terminals Resistance
1 and 2 Approximately 8Wat 20°C(68°F)
1or2andground¥W
(Continuity should not exist)
PBIB0574E

DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATOR
EC-271
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DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATORPFP:16119
DescriptionEBS00B7Y
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 LogicEBS00B7Z
FAI L-S AFE MO DE
ECM enters in fail-safe mode when the malfunction A, B or C is detected
DTC Confirmation ProcedureEBS00B80
NOTE:
lPerform “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 problem on “PROCEDURE FOR MALFUNCTION A AND B”, perform “PROCEDURE
FOR MALFUNCTION C”.
lIf “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 toEC-272, "
Diagnostic Procedure"
.
With GST
Follow the procedure "WITH CONSULT-II" above.
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.
lElectric 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

EC-272
[QR (WITH EURO-OBD)]
DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATOR
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 toEC-272, "
Diagnostic Procedure"
.
With GST
Follow the procedure "With CONSULT-II" above.
Diagnostic ProcedureEBS00B81
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. PerformEC-31, "
Throttle Valve Closed Position Learning".
3. PerformEC-31, "
Idle Air Volume Learning".
>>INSPECTION END
SEF058Y
PBIB0518E

DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
EC-273
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DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTIONPFP:16119
DescriptionEBS00B82
NOTE:
If DTC P1122 is displayed with DTC P1121, first perform the trouble diagnosis for DTC P1121. Refer to
EC-271
.
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 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 ValueEBS00B83
Specification data are reference values and are measured between each terminal and body 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.
: Average voltage for pulse signal (Actual pulse signal can be confirmed by oscilloscope.)
On Board Diagnosis LogicEBS00B84
FAI L-S AFE MO DE
When the malfunction A is detected, the ECM enters fail-safe mode and the MI lights up.
TER-
MINAL
NO.WIRE
COLORITEM CONDITION DATA (DC Voltage)
11 4 RThrottle control motor
(Open)[Ignition switch "ON"]
lGear position is "D" (A/T model)
lGear position is "1st" (M/T model)
lAccelerator pedal is depressing0-14V
11 5 B / YThrottle control motor
ground[Engineisrunning]
lIdle speedApproximately 0V
11 6 GThrottle control motor
(Close)[Ignition switch "ON"]
lGear position is "D" (A/T model)
lGear position is "1st" (M/T model)
lAccelerator pedal is releasing0-14V
PBIB0533E
PBIB0534E
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1122
11 2 2Electric throttle control
functionA)Electric throttle control feedback function does
not operate properly.
lHarness or connectors
(Throttle control motor circuit is
open or shorted.)
lElectric throttle control actuator B)An excessively high ampere of current flows
through throttle control motor to ECM.
Detected items Engine operating condition in fail-safe mode
Malfunction AECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5
degrees) by the return spring.

EC-274
[QR (WITH EURO-OBD)]
DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
DTC Confirmation Procedure
EBS00B85
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.
WITH CONSULT-II
1. Turn ignition switch “ON” and wait at least 2 seconds.
2. Select "DATA MONITOR" mode with CONSULT-II.
3. Start engine and let it idle for 5 seconds.
4. If 1st trip DTC is detected, go toEC-276, "
Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
SEF058Y

DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
EC-275
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Wiring DiagramEBS00B86
TBWA0092E

EC-276
[QR (WITH EURO-OBD)]
DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
Diagnostic Procedure
EBS00B87
1.RETIGHTEN GROUND SCREWS
1. Turn ignition switch "OFF".
2. Loosen and retighten engine ground screws.
>> GO TO 2.
2.CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Turn ignition switch “OFF”.
2. Disconnect electric throttle control actuator harness connector.
3. Disconnect ECM harness connector.
4. Check harness continuity between the following terminals.
Refer to Wiring Diagram.
5. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 3.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
3.CHECKTHROTTLECONTROLMOTORGROUNDCIRCUITFOROPENANDSHORT
1. Turn ignition switch "OFF".
2. Check harness continuity between ECM terminal 115 and engine ground.
Refer to Wiring Diagram.
3. Also check harness for short to power.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to power in harness or connectors.
PBIB0494E
Electric throttle control
actuator terminalECM terminal Continuity
6114 Should exist
116 Should not exist
3114 Should not exist
116 Should exist
PBIB0497E
Continuity should exist.