2003 NISSAN TEANA Service Manual

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Page 1473 of 3502

NISSAN TEANA 2003 Service Manual DTC P0605 ECM
EC-191
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4. If 1st trip DTC is detected, go to EC-192, "Diagnostic Procedure" .
PROCEDURE FOR MALFUNCTION B
With CONSULT-II
1. Turn ignition switch ON and

Page 1474 of 3502

NISSAN TEANA 2003 Service Manual EC-192
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DTC P0605 ECM

Diagnostic ProcedureBBS005FC
1. INSPECTION START
With CONSULT-II
1. Turn ignition switch ON.
2. Select “SELF DIAG RESULTS” mode with CONSULT-II.
3. Touch “ERASE”.

Page 1475 of 3502

NISSAN TEANA 2003 Service Manual DTC P1065 ECM POWER SUPPLY
EC-193
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DTC P1065 ECM POWER SUPPLYPFP:23710
Component DescriptionBBS005FD
Battery voltage is supplied to the ECM even when the ignition switc

Page 1476 of 3502

NISSAN TEANA 2003 Service Manual EC-194
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DTC P1065 ECM POWER SUPPLY

Wiring DiagramBBS005FG
TBWM1490E

Page 1477 of 3502

NISSAN TEANA 2003 Service Manual DTC P1065 ECM POWER SUPPLY
EC-195
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Specification data are reference values and are measured between each terminal and ground.
CAUTION:
Do not use ECM ground terminals w

Page 1478 of 3502

NISSAN TEANA 2003 Service Manual EC-196
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DTC P1065 ECM POWER SUPPLY

4. PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT-II
1. Turn ignition switch ON.
2. Select “SELF DIAG RESULTS” mode with CONSULT-II.
3. Touch “ERASE”

Page 1479 of 3502

NISSAN TEANA 2003 Service Manual DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATOR
EC-197
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DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATORPFP:16119
Component DescriptionBBS005FI
Electric throttle control actua

DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATOR
EC-197
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DTC P1121 ELECTRIC THROTTLE CONTROL ACTUATORPFP:16119
Component DescriptionBBS005FI
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 LogicBBS005FJ
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 ProcedureBBS005FK
NOTE:
Perform PROCEDURE FOR MALFUNCTION A AND B first. If the 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 witch 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 3 seconds.
4. Shift selector lever to P 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 3 seconds.
8. Shift selector lever to P position.
9. Turn ignition switch OFF, wait at least 10 seconds, and then turn
ON.
10. If DTC is detected, go to EC-198, "
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.
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 1480 of 3502

NISSAN TEANA 2003 Service Manual EC-198
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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 and wait at least 3 seconds.

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