Nissan Murano: Dtc/circuit Diagnosis / P2101 Electric Throttle Control Function
DTC DETECTION LOGIC
| DTC |
CONSULT screen terms (Trouble diagnosis content) |
DTC detection condition | |
| P2101 |
ETC FNCTN/CIRC-B1 (Throttle actuator “A” control motor circuit range/performance) |
Diagnosis condition | Start engine and let it idle |
| Signal (terminal) | — | ||
| Threshold | Electric throttle control function does not operate properly | ||
| Diagnosis delay time | — | ||
POSSIBLE CAUSE
-
Harness or connectors
(Throttle control motor circuit is open or shorted)
-
Electric throttle control actuator
FAIL-SAFE
| Engine operating condition in fail-safe mode | ||
|---|---|---|
| Fail safe mode | Nissan Murano Vehicle behavior | |
| Electric throttle control function | ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed opening (approx. 5 degrees) by the return spring. | |
CHECK DTC PRIORITY
If DTC P2101 is displayed with DTC P2100 or P2119, first perform the confirmation procedure for DTC P2100 or P2119.
Is applicable DTC detected?
YES>>Perform diagnosis of applicable.
-
DTC P2100: Refer to DTC Description.
-
DTC P2119: Refer to DTC Description.
GO TO 2.
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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11 V when engine is running.
>>
GO TO 3.
PERFORM DTC CONFIRMATION PROCEDURE
-
Turn ignition switch ON and wait at least 2 seconds.
-
Start engine and let it idle for 5 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 DTC PRIORITY
If DTC P2101 is displayed with DTC P2100 or P2119, first perform the confirmation procedure for DTC P2100 or P2119.
Is applicable DTC detected?
YES>>Perform diagnosis of applicable.
-
DTC P2100: Refer to DTC Description.
-
DTC P2119: Refer to DTC Description.
GO TO 2.
CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL
-
Check the voltage between ECM harness connector terminals.
ECM Condition Voltage + – Connector Terminal Condition Terminal F78 8 E32 152 Ignition switch OFF Approx. 0 V Ignition switch ON Battery voltage
Is the inspection result normal?
YES>>GO TO 5.
NO>>GO TO 3.
CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT
-
Turn ignition switch OFF.
-
Disconnect ECM harness connector.
-
Disconnect IPDM E/R harness connector.
-
Check the continuity between IPDM E/R harness connector and ECM harness connector.
IPDM E/R ECM Continuity Connector Terminal Connector Terminal F19 57 F78 2 Existed -
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES>>GO TO 4.
NO>>Repair open circuit, short to ground or short to power in harness or connectors.
CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT
-
Check the continuity between IPDM E/R harness connector and ECM harness connector.
IPDM E/R ECM Continuity Connector Terminal Connector Terminal F24 65 F78 8 Existed -
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES>>Perform the trouble diagnosis for power supply circuit.
NO>>Repair open circuit, short to ground or short to power in harness or connectors.
CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
-
Turn ignition switch OFF.
-
Disconnect electric throttle control actuator harness connector.
-
Disconnect ECM harness connector.
-
Check the continuity between electric throttle control actuator harness connector and ECM harness connector.
Electric throttle control actuator ECM Continuity Connector Terminal Connector Terminal F50 1 F78 1 Not existed 3 Existed 2 1 Existed 3 Not existed -
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES>>GO TO 6.
NO>>Repair or replace malfunctioning part.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
-
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 7.
NO>>Remove the foreign matter and clean the electric throttle control actuator inside, refer to Removal and Installation, and then perform throttle valve closed position learning. Refer to Description.
CHECK THROTTLE CONTROL MOTOR
Check throttle control motor. Refer to Component Inspection.
Is the inspection result normal?
YES>>INSPECTION END
NO>>Replace electric throttle control actuator. Refer to Removal and Installation.
CHECK THROTTLE CONTROL MOTOR
-
Turn ignition switch OFF.
-
Disconnect electric throttle control actuator harness connector.
-
Check resistance between electric throttle control actuator terminals as per the following.
Terminals Resistance 1 and 2 Approx. 1 - 15 Ω [at 25°C (77°F)]
Is the inspection result normal?
YES>>INSPECTION END
NO>>Replace electric throttle control actuator. Refer to Removal and Installation.
P2100 Throttle Control Motor Relay
DTC Description
DTC DETECTION LOGIC
ECM detects that the voltage of power source for throttle control motor is excessively low.
ECM detects that the throttle control motor relay is stuck ON...
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...
Other information:
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Nissan Murano (Z52) 2015-2024 Owners Manual: How to enable/disable the Intelligent Driver Alertness (I-DA) system
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Luggage hooks
When securing items using luggage hooks located on the back of the seat or side finisher do not apply a load over more than 6.5 lbs. (29 N) to a single hook.
The luggage hooks that are located on the floor should have loads less than 110 lbs. (490 N) to a single hook.
