Nissan Almera Tino V10. Instruction — part 484
EC-762
[QG (WITHOUT EURO-OBD)]
DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
PFP:16119
Description
EBS00QZJ
NOTE:
If DTC P1122 is displayed with DTC P1121 or 1126, first perform the trouble diagnosis for DTC P1121 or
P1126. Refer to
or
.
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 Logic
EBS00QZK
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 Procedure
EBS00QZL
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-764, "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-764, "Diagnostic Procedure"
.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P1122
1122
Electric throttle control
performance problem
Electric 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
DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
EC-763
[QG (WITHOUT EURO-OBD)]
C
D
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A
EC
Wiring Diagram
EBS00QZM
YEC463A
EC-764
[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 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.)
Diagnostic Procedure
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1.
RETIGHTEN GROUND SCREWS
1.
Turn ignition switch “OFF”.
2.
Loosen and retighten engine ground screws.
>> GO TO 2.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
3
R
Throttle control motor
power supply
[Ignition switch “ON”]
BATTERY VOLTAGE
(11 - 14V)
4
W
Throttle control motor
(Close)
[Ignition switch “ON”]
●
Engine stopped
●
Shift lever position is “D” (A/T models)
●
Shift lever position is “1st” (M/T models)
●
Accelerator pedal is releasing
0 - 14V
5
B
Throttle control motor
(Open)
[Ignition switch “ON”]
●
Engine stopped
●
Shift lever position is “D” (A/T models)
●
Shift lever position is “1st” (M/T models)
●
Accelerator pedal is depressing
0 - 14V
104
OR
Throttle control motor relay
[Ignition switch “OFF”]
BATTERY VOLTAGE
(11 - 14V)
[Ignition switch “ON”]
0 - 1.0V
PBIB0534E
PBIB0533E
MBIB0095E
DTC P1122 ELECTRIC THROTTLE CONTROL FUNCTION
EC-765
[QG (WITHOUT EURO-OBD)]
C
D
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EC
2.
CHECK THROTTLE CONTROL MOTOR RELAY SIGNAL CIRCUIT
Check voltage between ECM terminal 3 and ground under the fol-
lowing conditions with CONSULT-II or tester.
OK or NG
OK
>> GO TO 10.
NG
>> GO TO 3.
3.
CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT
1.
Turn ignition switch “OFF”.
2.
Disconnect throttle control motor relay.
3.
Check voltage between throttle control motor relay terminals 2, 5
and ground.
OK or NG
OK
>> GO TO 5.
NG
>> GO TO 4.
4.
DETECT MALFUNCTIONING PART
Check the following.
●
15A fuse
●
Harness for open or short between throttle control motor relay and fuse
>> Repair open circuit or short to ground or short to power in harness or connectors.
Ignition switch
Voltage
OFF
Approximately 0V
ON
Battery voltage
(11 - 14V)
MBIB0028E
MBIB0999E
Voltage: Battery voltage
PBIB0575E
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