Nissan Note E12. Instruction — part 236
P2101 ELECTRIC THROTTLE CONTROL FUNCTION
EC-283
< DTC/CIRCUIT DIAGNOSIS >
[HR16DE]
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P2101 ELECTRIC THROTTLE CONTROL FUNCTION
DTC Logic
INFOID:0000000009022646
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 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
>> Proceed to
.
NO
>> INSPECTION END
Diagnosis Procedure
INFOID:0000000009022647
1.
CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connection E15. 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
1. Turn ignition switch ON.
2. Check the voltage between ECM harness connector and ground.
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
ECM
Condition
Voltage
+
−
Connector
Terminal
Connector
Terminal
F10
2
E16
108
Ignition switch OFF
Approx. 0 V
Ignition switch ON
Battery voltage
EC-284
< DTC/CIRCUIT DIAGNOSIS >
[HR16DE]
P2101 ELECTRIC THROTTLE CONTROL FUNCTION
Is the inspection result normal?
YES
>> GO TO 10.
NO
>> GO TO 3.
3.
CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT-I
1. Turn ignition switch OFF.
2. Check voltage between ECM harness connector and ground.
Is the inspection result normal?
YES
>> GO TO 7.
NO
>> GO TO 4.
4.
CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT-II
1. Disconnect ECM harness connector.
2. Disconnect IPDM E/R harness connector F42.
3. Check the continuity between ECM harness connector and IPDM E/R harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> GO TO 5.
5.
DETECT MALFUNCTIONING PART
Check the following.
• IPDM E/R connector F42
• Harness for open or short between IPDM E/R and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
6.
CHECK FUSE
1. Disconnect 20A fuse (No. 53) from IPDM E/R.
2. Check 20A fuse for blown.
Is the inspection result normal?
YES
>> GO TO 9.
NO
>> Replace 20A fuse.
7.
CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT-III
1. Disconnect ECM harness connector.
2. Disconnect IPDM E/R harness connector F42.
3. Check the continuity between ECM harness connector and IPDM E/R harness connector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
>> GO TO 9.
ECM
Voltage
+
−
Connector
Terminal
Connector
Terminal
F10
15
E16
108
Battery voltage
IPDM E/R
ECM
Continuity
Connector
Terminal
Connector
Terminal
F42
32
F10
15
Existed
IPDM E/R
ECM
Continuity
Connector
Terminal
Connector
Terminal
F42
29
F10
2
Existed
P2101 ELECTRIC THROTTLE CONTROL FUNCTION
EC-285
< DTC/CIRCUIT DIAGNOSIS >
[HR16DE]
C
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EC
N
P
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NO
>> GO TO 8.
8.
DETECT MALFUNCTIONING PART
Check the following.
• IPDM E/R connector F42
• Harness for open or short between IPDM E/R and ECM
>> Repair open circuit or short to ground or short to power in harness or connectors.
9.
CHECK INTERMITTENT INCIDENT
GI-41, "Intermittent Incident"
.
Is the inspection result normal?
YES
>> Replace IPDM E/R. Refer to
PCS-30, "Removal and Installation"
.
NO
>> Repair or replace harness or connectors.
10.
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 11.
NO
>> Repair or replace harness or connectors.
11.
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
and the housing.
Is the inspection result normal?
YES
>> GO TO 12.
NO
>> Remove the foreign matter and clean the electric throttle
control actuator inside, and then perform throttle valve
closed position learning. Refer to
.
12.
CHECK THROTTLE CONTROL MOTOR
EC-286, "Component Inspection"
Is the inspection result normal?
YES
>> GO TO 13.
NO
>> GO TO 14.
13.
CHECK INTERMITTENT INCIDENT
GI-41, "Intermittent Incident"
.
Is the inspection result normal?
Electric throttle control actuator
ECM
Continuity
Connector
Terminal
Connector
Terminal
F7
5
F10
1
Not existed
4
Existed
6
1
Existed
4
Not existed
: Vehicle front
PBIB2974E
EC-286
< DTC/CIRCUIT DIAGNOSIS >
[HR16DE]
P2101 ELECTRIC THROTTLE CONTROL FUNCTION
YES
>> GO TO 14.
NO
>> Repair or replace harness or connectors.
14.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
Replace malfunction electric throttle control actuator. Refer to
.
>> INSPECTION END
Component Inspection
INFOID:0000000009022648
1.
CHECK THROTTLE CONTROL MOTOR
1. Disconnect electric throttle control actuator harness connector.
2. Check resistance between electric throttle control actuator terminals as follows.
Is the inspection result normal?
YES
>> INSPECTION END
NO
>> GO TO 2.
2.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
Replace electric throttle control actuator. Refer to
>> INSPECTION END
Terminals
Resistance [at 25
°C (77°F)]
5 and 6
Approx. 1 - 15
Ω
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