Nissan Cube. Manual — part 372
EC-374
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
P2100, P2103 THROTTLE CONTROL MOTOR RELAY
5.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 8.
NO
>> GO TO 7.
7.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F1
• Harness for open or short between ECM and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
8.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-34, "Removal and Installation"
(With I-KEY) or
(Without I-KEY).
NO
>> Repair or replace harness or connectors.
ECM
IPDM E/R
Continuity
Connector
Terminal
Connector
Terminal
F7
2
E15
54
Existed
P2101 ELECTRIC THROTTLE CONTROL FUNCTION
EC-375
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
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P2101 ELECTRIC THROTTLE CONTROL FUNCTION
Description
INFOID:0000000009947502
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 and it provides feed-
back to the ECM. ECM controls the throttle valve opening angle in response to driving condition via the throttle
control motor.
DTC Logic
INFOID:0000000009947503
DTC DETECTION LOGIC
NOTE:
• If DTC P2101 is displayed with DTC P2100, first perform the trouble diagnosis for DTC P2100. Refer
.
• If DTC P2101 is displayed with DTC P2119, first perform the trouble diagnosis for DTC P2119. Refer
.
DTC CONFIRMATION PROCEDURE
1.
PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at
least 10 seconds before conducting the next test.
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:0000000009947504
1.
CHECK GROUND CONNECTION
1.
Turn ignition switch OFF.
2.
Check ground connection E38. Refer to
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 and ground under the following conditions.
DTC No.
Trouble diagnosis name
DTC detecting condition
Possible cause
P2101
Electric throttle control
performance
Electric throttle control function does not
operate properly.
• Harness or connectors
(Throttle control motor circuit is open or shorted)
• Electric throttle control actuator
EC-376
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
P2101 ELECTRIC THROTTLE CONTROL FUNCTION
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> GO TO 3.
3.
CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY 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 short to power.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> GO TO 4.
4.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F8
• Harness for open or short between ECM and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
5.
CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-II
1.
Check the continuity between ECM harness connector and IPDM E/R harness connector.
2.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> GO TO 6.
6.
DETECT MALFUNCTIONING PART
Check the following.
• Harness connectors E8, F1
• Harness for open or short between ECM and IPDM E/R
>> Repair open circuit or short to ground or short to power in harness or connectors.
7.
CHECK FUSE
1.
Disconnect 15 A fuse (No. 64) from IPDM E/R.
2.
Check 15 A fuse for blown.
Is the inspection result normal?
ECM
Ground
Condition
Voltage
Connector
Terminal
F7
2
Ground
Ignition switch:
OFF
Approx. 0 V
Ignition switch:
ON
Battery voltage
IPDM E/R
ECM
Continuity
Connector
Terminal
Connector
Terminal
E15
57
F7
15
Existed
IPDM E/R
ECM
Continuity
Connector
Terminal
Connector
Terminal
E15
54
F7
2
Existed
P2101 ELECTRIC THROTTLE CONTROL FUNCTION
EC-377
< DTC/CIRCUIT DIAGNOSIS >
[MR18DE]
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YES
>> GO TO 8.
NO
>> Replace 15 A fuse.
8.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-34, "Removal and Installation"
(With I-KEY) or
(Without I-KEY).
NO
>> Repair or replace harness or connectors.
9.
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.
5.
Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> Repair or replace.
10.
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)
Is the inspection result normal?
YES
>> GO TO 11.
NO
>> Remove the foreign matter and clean the electric throttle
control actuator inside, and then perform throttle valve
closed position learning. Refer to
VALVE CLOSED POSITION LEARNING : Special
Repair Requirement"
.
11.
CHECK THROTTLE CONTROL MOTOR
EC-378, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 12.
NO
>> GO TO 13.
12.
CHECK INTERMITTENT INCIDENT
GI-40, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> GO TO 13.
NO
>> Repair or replace harness or connectors.
13.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1.
Replace malfunction electric throttle control actuator.
Electric throttle control actuator
ECM
Continuity
Connector
Terminal
Connector
Terminal
F29
5
F7
1
Not existed
4
Existed
6
1
Existed
4
Not existed
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