Infiniti M35/M45 Y50. Manual — part 534
DTC P2101 ELECTRIC THROTTLE CONTROL FUNCTION
EC-609
[VQ35DE]
C
D
E
F
G
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A
EC
11.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1.
Remove the intake air duct.
2.
Check if foreign matter is caught between the throttle valve and
the housing.
OK or NG
OK
>> GO TO 12.
NG
>> Remove the foreign matter and clean the electric throttle
control actuator inside.
12.
CHECK THROTTLE CONTROL MOTOR
Refer to
EC-609, "Component Inspection"
OK or NG
OK
>> GO TO 13.
NG
>> GO TO 14.
13.
CHECK INTERMITTENT INCIDENT
Refer to
EC-153, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT"
OK or NG
OK
>> GO TO 14.
NG
>> Repair or replace harness or connectors.
14.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1.
Replace the electric throttle control actuator.
2.
Perform
EC-86, "Throttle Valve Closed Position Learning"
3.
Perform
EC-86, "Idle Air Volume Learning"
>> INSPECTION END
Component Inspection
NBS00568
THROTTLE CONTROL MOTOR
1.
Disconnect electric throttle control actuator harness connector.
2.
Check resistance between terminals 3 and 6.
3.
If NG, replace electric throttle control actuator and go to next
step.
4.
Perform
EC-86, "Throttle Valve Closed Position Learning"
5.
Perform
EC-86, "Idle Air Volume Learning"
Removal and Installation
NBS00569
ELECTRIC THROTTLE CONTROL ACTUATOR
Refer to
EM-21, "INTAKE MANIFOLD COLLECTOR"
PBIB1556E
Resistance: Approximately 1 - 15
Ω
[at 25
°
C (77
°
F)]
PBIB0095E
EC-610
[VQ35DE]
DTC P2118 THROTTLE CONTROL MOTOR
DTC P2118 THROTTLE CONTROL MOTOR
PFP:16119
Component Description
NBS0056A
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
NBS0056B
This self-diagnosis has the one trip detection logic.
FAIL-SAFE MODE
When the malfunction is detected, ECM enters fail-safe mode and the MIL lights up.
DTC Confirmation Procedure
NBS0056C
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-612, "Diagnostic Procedure"
.
WITH GST
Follow the procedure “WITH CONSULT-II” above.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P2118
2118
Throttle control motor
circuit short
ECM detects short in both circuits between
ECM and throttle control motor.
●
Harness or connectors
(Throttle control motor circuit is shorted.)
●
Electric throttle control actuator
(Throttle control motor)
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 P2118 THROTTLE CONTROL MOTOR
EC-611
[VQ35DE]
C
D
E
F
G
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A
EC
Wiring Diagram
NBS0056D
TBWT1481E
EC-612
[VQ35DE]
DTC P2118 THROTTLE CONTROL MOTOR
Specification data are reference values and are measured between each terminal and ground.
Pulse signal is measured by CONSULT-II.
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
NBS0056E
1.
CHECK GROUND CONNECTIONS
1.
Turn ignition switch OFF.
2.
Loosen and retighten two ground screws on the body.
Refer to
OK or NG
OK
>> GO TO 2.
NG
>> Repair or replace ground connections.
TER-
MINAL
NO.
WIRE
COLOR
ITEM
CONDITION
DATA (DC Voltage)
3
R
Throttle control motor relay
power supply
[Ignition switch: ON]
BATTERY VOLTAGE
(11 - 14V)
4
W
Throttle control motor
(Close)
[Ignition switch: ON]
●
Engine stopped
●
Selector lever: D
●
Accelerator pedal: Fully released
0 - 14V
5
B
Throttle control motor
(Open)
[Ignition switch: ON]
●
Engine stopped
●
Selector lever: D
●
Accelerator pedal: Fully depressed
0 - 14V
104
O
Throttle control motor relay
[Ignition switch: OFF]
BATTERY VOLTAGE
(11 - 14V)
[Ignition switch: ON]
0 - 1.0V
PBIB1104E
PBIB1105E
1.
Body ground M70
2.
Body ground M16
PBIB2782E
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