2007 NISSAN TIIDA Service Repair Manual

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Page 2233 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-884
< COMPONENT DIAGNOSIS >[MR18DE]
P1111 IVT CONTROL SOLENOID VALVE
2. Provide 12V DC between intake valve timing control solenoid
valve terminals 1 and 2, and then interrupt it. Make sure that th

Page 2234 of 5883

NISSAN TIIDA 2007 Service Repair Manual P1121 ELECTRIC THROTTLE CONTROL ACTUATOR
EC-885
< COMPONENT DIAGNOSIS >[MR18DE]
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P1121 ELECTRIC THROTTLE CONTROL ACTUATOR
DescriptionINFOID:0000000001161855
Electric thr

P1121 ELECTRIC THROTTLE CONTROL ACTUATOR
EC-885
< COMPONENT DIAGNOSIS >[MR18DE]
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P1121 ELECTRIC THROTTLE CONTROL ACTUATOR
DescriptionINFOID:0000000001161855
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.
DTC LogicINFOID:0000000001161856
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A AND B
1. Turn ignition switch ON and wait at least 1 second.
2. Set shift lever to 1st position and wait at least 3 seconds.
3. Set shift lever to Neutral position.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Turn ignition switch ON and wait at least 1 second.
6. Set shift lever to 1st position and wait at least 3 seconds.
7. Set shift lever to Neutral position.
8. Turn ignition switch OFF, wait at least 10 seconds, and then turn ON.
9. Check DTC.
Is DTC detected?
YES >> Go to EC-885, "Diagnosis Procedure".
NO >> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION C
1. Turn ignition switch ON and wait at least 1 second.
2. Set shift lever to 1st position and wait at least 3 seconds.
3. Set shift lever to Neutral position.
4. Start engine and let it idle for 3 seconds.
5. Check DTC.
Is DTC detected?
YES >> Go to EC-885, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001161857
1.CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1121Electric 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 detect the throttle valve is stuck open.

Page 2235 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-886
< COMPONENT DIAGNOSIS >[MR18DE]
P1121 ELECTRIC THROTTLE CONTROL ACTUATOR
1. Turn ignition switch OFF.
2. Remove the intake air duct.
3. Check if foreign matter is caught between the throttle va

Page 2236 of 5883

NISSAN TIIDA 2007 Service Repair Manual P1122 ELECTRIC THROTTLE CONTROL FUNCTION
EC-887
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P1122 ELECTRIC THROTTLE CONTROL FUNCTION
DescriptionINFOID:0000000001161859
Electric thr

P1122 ELECTRIC THROTTLE CONTROL FUNCTION
EC-887
< COMPONENT DIAGNOSIS >[MR18DE]
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P1122 ELECTRIC THROTTLE CONTROL FUNCTION
DescriptionINFOID:0000000001161859
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.
DTC LogicINFOID:0000000001161860
DTC DETECTION LOGIC
NOTE:
If DTC P1122 is displayed with DTC P1121 or P1126, first perform the trouble diagnosis for DTC P1121
or P1126. Refer to EC-891, "
DTC Logic" or EC-885, "DTC Logic".
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11V when engine
is running.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE
1. Turn ignition switch ON and wait at least 2 seconds.
2. Start engine and let it idle for 5 seconds.
3. Check DTC.
Is DTC detected?
YES >> Go to EC-887, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001161861
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E15. Refer to Ground Inspection in GI-58, "
Circuit Inspection".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace ground connection.
2.CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I
1. Check the voltage between ECM harness connector terminals as follows.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1122Electric throttle control
performanceElectric throttle control function does not oper-
ate properly. Harness or connectors
(Throttle control motor circuit is open or
shorted)
Electric throttle control actuator

Page 2237 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-888
< COMPONENT DIAGNOSIS >[MR18DE]
P1122 ELECTRIC THROTTLE CONTROL FUNCTION
Is the inspection result normal?
YES >> GO TO 10.
NO >> GO TO 3.
3.CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCU

Page 2238 of 5883

NISSAN TIIDA 2007 Service Repair Manual P1122 ELECTRIC THROTTLE CONTROL FUNCTION
EC-889
< COMPONENT DIAGNOSIS >[MR18DE]
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2. Also check harness for short to ground and short to power.
Is the inspection result n

Page 2239 of 5883

NISSAN TIIDA 2007 Service Repair Manual EC-890
< COMPONENT DIAGNOSIS >[MR18DE]
P1122 ELECTRIC THROTTLE CONTROL FUNCTION
13.CHECK INTERMITTENT INCIDENT
Refer to GI-55, "
Intermittent Incident".
Is the inspection result normal?
YES >> GO TO 1

Page 2240 of 5883

NISSAN TIIDA 2007 Service Repair Manual P1124, P1126 THROTTLE CONTROL MOTOR RELAY
EC-891
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P1124, P1126 THROTTLE CONTROL MOTOR RELAY
DescriptionINFOID:0000000001161864
Power supp

P1124, P1126 THROTTLE CONTROL MOTOR RELAY
EC-891
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P1124, P1126 THROTTLE CONTROL MOTOR RELAY
DescriptionINFOID:0000000001161864
Power supply for the throttle control motor is provided to the ECM via throttle control motor relay. The throttle
control motor relay is ON/OFF controlled by the ECM. When the ignition switch is turned ON, the ECM sends
an ON signal to throttle control motor relay and battery voltage is provided to the ECM. When the ignition
switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not
provided to the ECM.
DTC LogicINFOID:0000000001161865
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 8V.
Witch DTC is detected?
P1126 >> GO TO 2.
P1124 >> GO TO 3.
2.PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P1126
1. Turn ignition switch ON and wait at least 2 seconds.
2. Start engine and let it idle for 5 seconds.
3. Check DTC.
Is DTC detected?
YES >> Go to EC-891, "Diagnosis Procedure".
NO >> INSPECTION END
3.PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P1124
1. Turn ignition switch ON and wait at least 1 second.
2. Check DTC.
Is DTC detected?
YES >> Go to EC-891, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis ProcedureINFOID:0000000001161866
1.CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I
1. Turn ignition switch OFF.
2. Check the voltage between ECM harness connector terminals as follows.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1124Throttle control motor
relay circuit openECM detects a voltage of power source for
throttle control motor is excessively low. Harness or connectors
(Throttle control motor relay circuit is
open)
Throttle control motor relay
P1126Throttle control motor
relay circuit shortECM detect the throttle control motor relay is
stuck ON. Harness or connectors
(Throttle control motor relay circuit is
shorted)
Throttle control motor relay

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