2003 NISSAN ALMERA N16 Electronic Repair Manual

drain bolt airbag radio controls jump start terminals navigation update open hood

Page 905 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATOR
EC-575
[QG (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATORPFP:16119
Component DescriptionEBS00KIB
Electric Throt

DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATOR
EC-575
[QG (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATORPFP:16119
Component DescriptionEBS00KIB
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 LogicEBS00KIC
This self-diagnosis has the one trip detection logic.
FAIL-SAFE MODE
When the malfunction A or B is detected in the two consecutive trips, the ECM enters fail-safe mode and 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 ProcedureEBS00KID
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-576, "
Diagnostic Procedure"
.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1121
11 2 1Electric 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.
This self-diagnosis has the one trip detection
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 906 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual EC-576
[QG (WITHOUT EURO-OBD)]
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

EC-576
[QG (WITHOUT EURO-OBD)]
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), “1st” position (M/T) 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-576, "
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 DTC is detected, go to EC-576, "
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 2 seconds.
3. Shift selector lever to “N” or “P” position.
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-576, "
Diagnostic Procedure" .
Diagnostic ProcedureEBS00KIE
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-425, "
Throttle Valve Closed Position Learning" .
3. Perform EC-425, "
Idle Air Volume Learning" .
>>INSPECTION END
SEF058Y
MBIB0107E

Page 907 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATOR
EC-577
[QG (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
Removal and InstallationEBS00KIF
ELECTRIC THROTTLE CONTROL ACTUATOR
Refer to EM-16, "INTAKE MA

Page 908 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual EC-578
[QG (WITHOUT EURO-OBD)]
DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
PFP:16119
DescriptionEBS00KIG
NOTE:
If DTC P1122 is displayed with DTC P1121 or

EC-578
[QG (WITHOUT EURO-OBD)]
DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
PFP:16119
DescriptionEBS00KIG
NOTE:
If DTC P1122 is displayed with DTC P1121 or 1126, first perform the trouble diagnosis for DTC P1121 or
P1126. Refer to EC-575
or EC-585 .
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.
On Board Diagnosis LogicEBS00KIH
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 ProcedureEBS00KII
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 DTC is detected, go to EC-580, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
1. Turn ignition switch “ON” and wait at least 2 seconds.
2. Start engine and let it idle for 5 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 DTC is detected, go to EC-580, "
Diagnostic Procedure" .
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1122
11 2 2Electric throttle control
performance problemElectric throttle control function does
not operate properly.
●Harness or connectors
(Throttle control motor circuit is open or shorted.)
●Harness or connectors
(Throttle control motor relay circuit is open or
shorted.)
●Electric throttle control actuator
●Throttle control motor relay
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.
SEF058Y

Page 909 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
EC-579
[QG (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
Wiring DiagramEBS00KIJ
YEC297A

Page 910 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual EC-580
[QG (WITHOUT EURO-OBD)]
DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground te

Page 911 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
EC-581
[QG (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
MA
EC
2.CHECK THROTTLE CONTROL MOTOR RELAY SIGNAL CIRCUIT
Check voltage between ECM terminal 3 and

Page 912 of 3189

NISSAN ALMERA N16 2003 Electronic Repair Manual EC-582
[QG (WITHOUT EURO-OBD)]
DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
5. CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT
1. Disconnect ECM harness connector.
2. Check harness continuity

Load next 8 pages

Page: < prev 1-10 ... 873-880 881-888 889-896 897-904 905-912 913-920 921-928 929-936 937-944 ... 3192 next >

parking brake catalytic converter ABS dashboard turn signal headlight bulb