Nissan X-Trail 32. Manual — part 809
P2101 ELECTRIC THROTTLE CONTROL FUNCTION
EC-365
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
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If DTC P2101 is displayed with DTC P2100 or P2119, first perform the trouble diagnosis for DTC P2100 or
P2119.
Is applicable DTC detected?
YES
>> Perform diagnosis of applicable. Refer to
.
NO
>> GO TO 2.
2.
CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL
Check the voltage between ECM harness connector terminals as per the following conditions.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 3.
3.
CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Disconnect IPDM E/R harness connector.
4.
Check the continuity between ECM harness connector and IPDM E/R harness connector.
5.
Also check harness for short to ground and to power.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace malfunctioning part.
4.
CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT
1.
Check the continuity between ECM harness connector and IPDM E/R harness connector.
2.
Also check harness for short to ground and to power.
Is the inspection result normal?
YES
>> Perform the trouble diagnosis for power supply circuit.
NO
>> Repair or replace malfunctioning part.
5.
CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect electric throttle control actuator harness connector.
3.
Disconnect ECM harness connector.
4.
Check the continuity between electric throttle control actuator harness connector and ECM harness con-
nector.
+
−
Condition
Voltage
(Approx.)
ECM
Connector
Terminal
Connector
Terminal
F8
80
E16
128
Ignition switch
OFF
0 V
ON
Battery voltage
+
−
Continuity
ECM
IPDM E/R
Connector
Terminal
Connector
Terminal
F8
80
F72
67
Existed
+
−
Continuity
ECM
IPDM E/R
Connector
Terminal
Connector
Terminal
F8
65
F72
72
Existed
EC-366
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
P2101 ELECTRIC THROTTLE CONTROL FUNCTION
5.
Also check harness for short to ground and to power.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Repair or replace malfunctioning part.
6.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1.
Remove the intake air duct. Refer to
EM-31, "Removal and Installation"
.
2.
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, then perform
throttle valve closed position learning. Refer to
7.
CHECK THROTTLE CONTROL MOTOR
Check the throttle control motor. Refer to
EC-366, "Component Inspection"
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace electric throttle control actuator. Refer to
EM-33, "Removal and Installation"
Component Inspection
INFOID:0000000010775260
1.
CHECK THROTTLE CONTROL MOTOR
1.
Turn ignition switch OFF.
2.
Disconnect electric throttle control actuator harness connector.
3.
Check the resistance between electric throttle control actuator terminals as per the following.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace electric throttle control actuator. Refer to
EM-33, "Removal and Installation"
+
−
Continuity
Electric throttle control actu-
ator
ECM
Connector
Terminal
Connector
Terminal
F29
5
F8
69
Not existed
73
Existed
6
69
Existed
73
Not existed
Electric throttle control actuator
Resistance
(Approx.)
+
−
Terminal
5
6
1 - 15
Ω
[at 25
°
C (77
°
F)]
P2118 THROTTLE CONTROL MOTOR
EC-367
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
C
D
E
F
G
H
I
J
K
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M
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EC
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P
O
P2118 THROTTLE CONTROL MOTOR
DTC Description
INFOID:0000000010775261
DTC DETECTION LOGIC
POSSIBLE CAUSE
• Harness or connectors (Throttle control motor circuit is shorted.)
• Electric throttle control actuator (Throttle control motor)
FAIL-SAFE
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure
before conducting the next test.
1.
Turn ignition switch OFF and wait at least 10 seconds.
2.
Turn ignition switch ON.
3.
Turn ignition switch OFF and wait at least 10 seconds.
>> GO TO 2.
2.
PERFORM DTC CONFIRMATION PROCEDURE
1.
Turn ignition switch ON and wait at least 2 seconds.
2.
Start engine and let it idle for 5 seconds.
3.
Check DTC.
Is DTC detected?
YES
>> Proceed to
.
NO-1
>> To check malfunction symptom before repair: Refer to
GI-44, "Intermittent Incident"
NO-2
>> Confirmation after repair: INSPECTION END
Diagnosis Procedure
INFOID:0000000010775262
1.
CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT
1.
Turn ignition switch OFF.
2.
Disconnect electric throttle control actuator harness connector.
3.
Disconnect ECM harness connector.
4.
Check the continuity between electric throttle control actuator harness connector and ECM harness con-
nector.
DTC No.
CONSULT screen terms
(Trouble diagnosis content)
DTC detecting condition
P2118
ETC MOT-B1
(Throttle actuator control motor current
range/performance)
ECM detects short in throttle control motor signal circuit.
Engine operating condition in fail-safe mode
Fail safe mode
Vehicle behavior
Others
ECM stops the electric throttle control actuator control, throttle valve is maintained at a fixed
opening (approx. 5 degrees) by the return spring.
EC-368
< DTC/CIRCUIT DIAGNOSIS >
[MR20DD]
P2118 THROTTLE CONTROL MOTOR
5.
Also check harness for short to ground and to power.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace malfunctioning part.
2.
CHECK THROTTLE CONTROL MOTOR
Check the throttle control motor. Refer to
EC-368, "Component Inspection"
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace electric throttle control actuator. Refer to
EM-33, "Removal and Installation"
.
Component Inspection
INFOID:0000000010775263
1.
CHECK THROTTLE CONTROL MOTOR
1.
Turn ignition switch OFF.
2.
Disconnect electric throttle control actuator harness connector.
3.
Check the resistance between electric throttle control actuator terminals as per the following.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> Replace electric throttle control actuator. Refer to
EM-33, "Removal and Installation"
+
−
Continuity
Electric throttle control actu-
ator
ECM
Connector
Terminal
Connector
Terminal
F29
5
F8
69
Not existed
73
Existed
6
69
Existed
73
Not existed
Electric throttle control actuator
Resistance
(Approx.)
+
−
Terminal
5
6
1 - 15
Ω
[at 25
°
C (77
°
F)]
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