2008 INFINITI FX35 Service Manual

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Page 1737 of 3924

INFINITI FX35 2008 Service Manual
DTC P2101 ELECTRIC THROTTLE CONTROL FUNCTIONEC-497
< SERVICE INFORMATION > [VQ35DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
Check voltage between ECM terminal 3 and ground under the fol-
lowing conditions wi

Page 1738 of 3924

INFINITI FX35 2008 Service Manual
EC-498
< SERVICE INFORMATION >[VQ35DE]
DTC P2101 ELECTRIC THROTTLE CONTROL FUNCTION
NG >> GO TO 7.
7.DETECT MALFUNCTIONING PART
Check the following.
Harness connectors E211, M41
Harness for open

Page 1739 of 3924

INFINITI FX35 2008 Service Manual
DTC P2101 ELECTRIC THROTTLE CONTROL FUNCTIONEC-499
< SERVICE INFORMATION > [VQ35DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
OK or NG
OK >> GO TO 13.
NG >> GO TO 14.
13.CHECK INTERMITTENT INCIDENT
Refer to E

Page 1740 of 3924

INFINITI FX35 2008 Service Manual
EC-500
< SERVICE INFORMATION >[VQ35DE]
DTC P2118 THROTTLE CONTROL MOTOR
DTC P2118 THROTTLE CONTROL MOTOR
Component DescriptionINFOID:0000000001326376
The throttle control motor is operated by the ECM

Page 1741 of 3924

INFINITI FX35 2008 Service Manual
DTC P2118 THROTTLE CONTROL MOTOREC-501
< SERVICE INFORMATION > [VQ35DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
Wiring DiagramINFOID:0000000001326379
Specification data are reference values
and are measured

Page 1742 of 3924

INFINITI FX35 2008 Service Manual
EC-502
< SERVICE INFORMATION >[VQ35DE]
DTC P2118 THROTTLE CONTROL MOTOR
Do not use ECM ground terminals when measuring in
put/output voltage. Doing so may result in dam-
age to the ECMs transistor.

Page 1743 of 3924

INFINITI FX35 2008 Service Manual
DTC P2118 THROTTLE CONTROL MOTOREC-503
< SERVICE INFORMATION > [VQ35DE]
C
D
E
F
G H
I
J
K L
M A
EC
NP
O
1. Disconnect electric throttle c
ontrol actuator harness connector.
2. Disconnect ECM harness

Page 1744 of 3924

INFINITI FX35 2008 Service Manual
EC-504
< SERVICE INFORMATION >[VQ35DE]
DTC P2119 ELECTRIC THROTTLE CONTROL ACTUATOR
DTC P2119 ELECTRIC TH
ROTTLE CONTROL ACTUATOR
Component DescriptionINFOID:0000000001326383
Electric throttle contro

EC-504
< SERVICE INFORMATION >[VQ35DE]
DTC P2119 ELECTRIC THROTTLE CONTROL ACTUATOR
DTC P2119 ELECTRIC TH
ROTTLE CONTROL ACTUATOR
Component DescriptionINFOID:0000000001326383
Electric throttle control actuator consists of th rottle 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 va lve position, and the opening and closing speed of the throt-
tle valve and feeds the voltage signals to the ECM. T he ECM judges the current opening angle of the throttle
valve from these signals and the ECM controls the thrott le control motor to make the throttle valve opening
angle properly in response to driving condition.
On Board Diagn osis LogicINFOID:0000000001326384
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 MIL lights up.
DTC Confirmation ProcedureINFOID:0000000001326385
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 conduc ted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
PROCEDURE FOR MALFUNCTION A AND B
1. Turn ignition switch ON and wait at least 1 second.
2. Shift selector lever to D position and wait at least 3 seconds.
3. Shift selector lever to P, N position.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Turn ignition switch ON and wait at least 1 second.
6. Shift selector lever to D position and wait at least 3 seconds.
7. Shift selector lever to P, N position.
8. Turn ignition switch OFF, wait at least 10 seconds and then turn ON.
9. Check DTC.
10. If DTC is detected, go to EC-505, "
Diagnosis Procedure".
PROCEDURE FOR MALFUNCTION C
1. Turn ignition switch ON and wait at least 1 second.
2. Shift selector lever to D position and wait at least 3 seconds.
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2119
2119 Electric throttle control
actuator A)
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 A The 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 C While 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.
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