Nissan Murano. Instruction — part 575
EC-410
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
P2101 ELECTRIC THROTTLE CONTROL FUNCTION
P2101 ELECTRIC THROTTLE CONTROL FUNCTION
Description
INFOID:0000000009720158
Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc.
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. The throttle position
sensor provides feedback to the ECM, when opens/closes the throttle valve in response to driving conditions
via the throttle control motor.
DTC Logic
INFOID:0000000009720159
DTC DETECTION LOGIC
NOTE:
If DTC P2101 is displayed with DTC P2100, first perform the trouble diagnosis for DTC P2100. Refer to
If DTC P2101 is displayed with DTC 2119, first perform the trouble diagnosis for DTC P2119. Refer to
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct-
ing 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.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 11 V when
engine is running.
>> 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
>> Go to
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009720160
1.
CHECK GROUND CONNECTION
1.
Turn ignition switch OFF.
2.
Check ground connection E38. Refer to Ground Inspection in
.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace ground connection.
2.
CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I
1.
Check the voltage between ECM harness connector terminals.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P2101
Electric throttle control
performance
Electric throttle control function does not oper-
ate properly.
• Harness or connectors
(Throttle control motor circuit is open or
shorted)
• Electric throttle control actuator
P2101 ELECTRIC THROTTLE CONTROL FUNCTION
EC-411
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> GO TO 3.
3.
CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT-II
1.
Turn ignition switch OFF.
2.
Disconnect ECM harness connector.
3.
Disconnect IPDM E/R harness connector.
4.
Check the continuity between IPDM E/R harness connector and ECM harness connector.
5.
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.
4.
CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-II
1.
Check the continuity between IPDM E/R harness connector and ECM harness connector.
2.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair open circuit, short to ground or short to power in harness or connectors.
5.
CHECK FUSE
1.
Disconnect 15 A fuse (No. 51) from IPDM E/R.
2.
Check if 15 A fuse is blown.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Replace 15 A fuse.
6.
CHECK INTERMITTENT INCIDENT
GI-44, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
.
NO
>> Repair or replace harness or connectors.
7.
CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT
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.
ECM
Condition
Voltage
+
–
Connector
Terminal
Condition
Terminal
F7
2
E16
112
Ignition switch OFF
Approx. 0 V
Ignition switch ON
Battery voltage
IPDM E/R
ECM
Continuity
Connector
Terminal
Connector
Terminal
F12
70
F7
15
Existed
IPDM E/R
ECM
Continuity
Connector
Terminal
Connector
Terminal
F12
54
F7
2
Existed
EC-412
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
P2101 ELECTRIC THROTTLE CONTROL FUNCTION
5.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> Repair or replace malfunctioning part.
8.
CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1.
Remove the intake air duct. Refer to
.
2.
Check if foreign matter is caught between the throttle valve (1)
and the housing.
-
Electric throttle control actuator (2)
-
: Vehicle front
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Remove the foreign matter and clean the electric throttle
control actuator inside, refer to
,
and then perform throttle valve closed position learning.
Refer to
EC-19, "THROTTLE VALVE CLOSED POSI-
9.
CHECK THROTTLE CONTROL MOTOR
EC-412, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> GO TO 11.
10.
CHECK INTERMITTENT INCIDENT
GI-44, "Intermittent Incident"
Is the inspection result normal?
YES
>> GO TO 11.
NO
>> Repair or replace harness or connectors.
11.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1.
Replace electric throttle control actuator. Refer to
.
2.
EC-413, "Special Repair Requirement"
>> INSPECTION END
Component Inspection
INFOID:0000000009720161
1.
CHECK THROTTLE CONTROL MOTOR
1.
Turn ignition switch OFF.
2.
Disconnect electric throttle control actuator harness connector.
3.
Check resistance between electric throttle control actuator terminals as per the following.
Is the inspection result normal?
Electric throttle control actuator
ECM
Continuity
Connector
Terminal
Connector
Terminal
F29
5
F7
5
Not existed
6
Existed
6
5
Existed
6
Not existed
JMBIA1132ZZ
Terminals
Resistance
5 and 6
Approx. 1 - 15
Ω
[at 25
°
C (77
°
F)]
P2101 ELECTRIC THROTTLE CONTROL FUNCTION
EC-413
< DTC/CIRCUIT DIAGNOSIS >
[VQ35DE]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1.
Replace electric throttle control actuator. Refer to
.
2.
Go to
EC-413, "Special Repair Requirement"
.
>> INSPECTION END
Special Repair Requirement
INFOID:0000000009720162
1.
PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
EC-19, "THROTTLE VALVE CLOSED POSITION LEARNING : Special Repair Requirement"
>> GO TO 2.
2.
PERFORM IDLE AIR VOLUME LEARNING
EC-20, "IDLE AIR VOLUME LEARNING : Special Repair Requirement"
>> END
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