Nissan Murano: Dtc/circuit Diagnosis / P2119 Electric Throttle Control Actuator
DTC DETECTION LOGIC
| DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition | ||
| P2119 |
ETC ACTR-B1 (Throttle actuator control throttle body range/performance) |
1 | Diagnosis condition | — |
| Signal (terminal) | — | |||
| Threshold | Electric throttle control actuator does not function properly due to the return spring malfunction | |||
| Diagnosis delay time | — | |||
| 2 | Diagnosis condition | — | ||
| Signal (terminal) | — | |||
| Threshold | Throttle valve opening angle in fail-safe mode is not in specified range | |||
| Diagnosis delay time | — | |||
| 3 | Diagnosis condition | — | ||
| Signal (terminal) | — | |||
| Threshold | ECM detects that the throttle valve is stuck open | |||
| Diagnosis delay time | — | |||
POSSIBLE CAUSE
-
Electric throttle control actuator
FAIL-SAFE
| Engine operating condition in fail-safe mode | ||
|---|---|---|
| Fail safe mode | Nissan Murano Vehicle behavior | |
| Electric throttle control actuator |
(When electric throttle control actuator does not function properly due to the return spring malfunction:) 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. |
|
|
(When throttle valve opening angle in fail-safe mode is not in specified range:) ECM controls the electric throttle control actuator by regulating the throttle opening to 20 degrees or less. |
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(When ECM detects the throttle valve is stuck open:) While the Nissan Murano vehicle is being driven, it slows down gradually because of fuel cut. After the vehicle stops, the engine stalls. The engine can restart in the N or P position, and engine speed will not exceed 1,000 rpm or more. |
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PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next test.
-
Turn ignition switch OFF and wait at least 10 seconds.
-
Turn ignition switch ON.
-
Turn ignition switch OFF and wait at least 10 seconds.
>>
GO TO 2.
PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION 1 AND 2
-
Turn ignition switch ON and wait at least 1 second.
-
Shift selector lever to the D position and wait at least 3 seconds.
-
Shift selector lever to the P position.
-
Turn ignition switch OFF and wait at least 10 seconds.
-
Turn ignition switch ON and wait at least 1 second.
-
Shift selector lever to the D position and wait at least 3 seconds.
-
Shift selector lever to the P position.
-
Turn ignition switch OFF, wait at least 10 seconds, and then turn ON.
-
Check DTC.
Is DTC detected?
YES>>Proceed to Diagnosis Procedure.
NO>>GO TO 3.
PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION 3
-
Turn ignition switch ON and wait at least 1 second.
-
Shift selector lever to the D position and wait at least 3 seconds.
-
Shift selector lever to the N or P position.
-
Start engine and let it idle for 3 seconds.
-
Check DTC.
Is DTC detected?
YES>>Proceed to Diagnosis Procedure.
NO>>To check malfunction symptom before repair: Refer to Intermittent Incident.
NO>>Confirmation after repair: INSPECTION END
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
-
Turn ignition switch OFF.
-
Remove the intake air duct. Refer to Removal and Installation.
-
Check if foreign matter is caught between the throttle valve and the housing.
Is the inspection result normal?
YES>>GO TO 2.
NO>>Remove the foreign matter and clean the electric throttle control actuator inside, and then perform throttle valve closed position learning. Refer to Description.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
-
Replace electric throttle control actuator. Refer to Removal and Installation.
-
Go to Description.
>>
INSPECTION END
P2118 Throttle Control Motor
DTC Description
DTC DETECTION LOGIC DTC
CONSULT screen terms
(Trouble diagnosis content)
DTC detection condition
P2118
ETC MOT-B1
(Throttle actuator control motor current range/performance)
Diagnosis condition
Start engine and let it idle
Signal (terminal)
Throttle control motor circuit
Threshold
ECM detects short in both circuits between ECM and throttle control motor
Diagnosis delay time
—
POSSIBLE CAUSE
Harness or connectors
(Throttle control motor circuit is shorted...
P2122 App Sensor
DTC Description
DTC DETECTION LOGIC
An excessively low voltage from the APP sensor 1 is sent to ECM.
An excessively high voltage from the APP sensor 1 is sent to ECM...
Other information:
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Driver and passenger supplemental knee air bag
Driver’s side
The knee air bag is located in the knee bolster, on the driver’s and passenger’s side. All of the information, cautions and warnings in this manual apply and must be followed. The knee air bag is designed to inflate in higher severity frontal collisions, although it may inflate if the forces in another type of collision are similar to those of a higher severity frontal impact. It may not inflate in certain collisions.
Passenger’s side
