2003 NISSAN TEANA Service Manual

fuel filter instrument panel bonnet clutch seat memory emergency towing

Page 1833 of 3502

NISSAN TEANA 2003 Service Manual DTC P1111, P1136 IVT CONTROL SOLENOID VALVE
EC-551
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4. DETECT MALFUNCTIONING PART
Check the following.
Harness connectors F1, F251 (bank 1)
Harness for open and short

Page 1834 of 3502

NISSAN TEANA 2003 Service Manual EC-552
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DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATOR

DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATORPFP:16119
Component DescriptionBBS0051X
Electric throttle control actuator consists of throttle c

EC-552
[VQ]
DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATOR

DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATORPFP:16119
Component DescriptionBBS0051X
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 LogicBBS0051Y
These self-diagnoses have the one trip detection logic.
FAIL-SAFE MODE
When the malfunction is detected, ECM enters fail-safe mode and the MI lights up.
DTC Confirmation ProcedureBBS0051Z
NOTE:
Perform PROCEDURE FOR MALFUNCTION A AND B first. If the 1st trip 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 switch ON and wait at least 1 second.
2. Select “DATA MONITOR” mode with CONSULT-II.
3. Shift selector lever to D position and wait at least 2 seconds.
4. Shift selector lever to P or N position.
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 and wait at least 2 seconds.
8. Shift selector lever to P or N position.
9. Turn ignition switch OFF, wait at least 10 seconds and then turn
ON.
10. If 1st trip DTC is detected, go to EC-553, "
Diagnostic Procedure"
.
Without CONSULT-II
1. Turn ignition switch ON and wait at least 1 second.
2. Shift selector lever to D position and wait at least 2 seconds.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1121
1121Electric 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.
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 P or N position, and engine speed will not exceed 1,000 rpm or more.
SEF058Y

Page 1835 of 3502

NISSAN TEANA 2003 Service Manual DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATOR
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3. Shift selector lever to P or N position.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Turn ignit

Page 1836 of 3502

NISSAN TEANA 2003 Service Manual EC-554
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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-389, "
Throttle Valve Closed P

Page 1837 of 3502

NISSAN TEANA 2003 Service Manual DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
EC-555
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DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTIONPFP:16119
DescriptionBBS00521
NOTE:
If DTC P1122 is displayed with DTC

DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
EC-555
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DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTIONPFP:16119
DescriptionBBS00521
NOTE:
If DTC P1122 is displayed with DTC P1121 or P1126, first perform the trouble diagnosis for DTC P1121
or P1126. Refer to EC-552, "
DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATOR" or EC-562,
"DTC P1124, P1126 THROTTLE CONTROL MOTOR RELAY" .
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 LogicBBS00522
This self-diagnosis has the one trip detection logic.
FAIL-SAFE MODE
When the malfunction is detected, ECM enters fail-safe mode and the MI lights up.
DTC Confirmation ProcedureBBS00523
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-557, "
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-557, "
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 oper-
ate properly.
Harness or connectors
(Throttle control motor circuit is open or
shorted)
Electric throttle control actuator
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 1838 of 3502

NISSAN TEANA 2003 Service Manual EC-556
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DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION

Wiring DiagramBBS00524
TBWM1455E

Page 1839 of 3502

NISSAN TEANA 2003 Service Manual DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
EC-557
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Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured

Page 1840 of 3502

NISSAN TEANA 2003 Service Manual EC-558
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DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION

2. CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I
Check voltage between ECM terminal 3 and ground under the fol-
lowing conditions

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