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EC
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Wiring Diagram
INFOID:0000000004780699
Diagnosis Procedure INFOID:0000000004780306Ground Inspection " .
Is the inspection result normal? B
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![NISSAN LATIO 2009 Service Repair Manual EC-390< COMPONENT DIAGNOSIS >
[HR16DE]
P2101 ELECTRIC THROTTLE CONTROL FUNCTION
YES >> GO TO 2.
NO >> Repair or replace ground connection. 2.
CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I
NISSAN LATIO 2009 Service Repair Manual EC-390< COMPONENT DIAGNOSIS >
[HR16DE]
P2101 ELECTRIC THROTTLE CONTROL FUNCTION
YES >> GO TO 2.
NO >> Repair or replace ground connection. 2.
CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I](/manual-img/5/57359/w960_57359-1745.png)
EC-390< COMPONENT DIAGNOSIS >
[HR16DE]
P2101 ELECTRIC THROTTLE CONTROL FUNCTION
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.
Is the inspection result normal? YES >> GO TO 9.
NO >> GO TO 3. 3.
CHECK THROTTLE CONTROL MOTO R 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 harnes s 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 harnes s 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, 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.
ECM
Ground Condition Voltage
Connector Terminal
F10 2 Ground Ignition switch: OFF Approx. 0 V
Ignition switch: ON Battery voltage PBIA9568J
IPDM E/R ECM
Continuity
Connector Terminal Connector Terminal
E46 46 F10 15 Existed IPDM E/R ECM
Continuity
Connector Terminal Connector Terminal
E43 8 F10 2 Existed
Page 1747 of 4331
![NISSAN LATIO 2009 Service Repair Manual P2101 ELECTRIC THROTTLE CONTROL FUNCTION
EC-391
< COMPONENT DIAGNOSIS >
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CHECK FUSE
1. Disconnect 15 A fuse (No. 52) from IPDM E/R.
2. Check 15 A fuse for bl NISSAN LATIO 2009 Service Repair Manual P2101 ELECTRIC THROTTLE CONTROL FUNCTION
EC-391
< COMPONENT DIAGNOSIS >
[HR16DE] C
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CHECK FUSE
1. Disconnect 15 A fuse (No. 52) from IPDM E/R.
2. Check 15 A fuse for bl](/manual-img/5/57359/w960_57359-1746.png)
P2101 ELECTRIC THROTTLE CONTROL FUNCTION
EC-391
< COMPONENT DIAGNOSIS >
[HR16DE] C
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CHECK FUSE
1. Disconnect 15 A fuse (No. 52) from IPDM E/R.
2. Check 15 A fuse for blown.
Is the inspection result normal? YES >> GO TO 8.
NO >> Replace 15 A fuse. 8.
CHECK INTERMITTENT INCIDENT
Refer to EC-120, " Diagnosis Procedure " .
Is the inspection result normal? YES >> Replace IPDM E/R.
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 c ontrol 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.
2. Check if foreign matter is c aught 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. 11.
CHECK THROTTLE CONTROL MOTOR
Refer to EC-392, " Component Inspection " .
Is the inspection result normal? YES >> GO TO 12.
NO >> GO TO 13. 12.
CHECK INTERMITTENT INCIDENT
Refer to EC-120, " Diagnosis Procedure " .
Is the inspection result normal? YES >> GO TO 13.Electric throttle control actuator ECM
Continuity
Connector Terminal Connector Terminal
F7 5
F10 1 Not existed
4 Existed
6 1 Existed
4 Not existed JMBIA0447ZZ
Page 1748 of 4331
Special Repair Requirement " .
>> INSPECTION END
Component Inspection INFOID:0000000004780307YES >> INSPECTION END
NO >> GO TO 2. Special Repair Requirement " .
>> INSPECTION END
Special Repair Requirement INFOID:0000000004780461THROTTLE VALVE CLOSED POSITION LE
ARNING : Special Repair Requirement "
>> GO TO 2.
IDLE AIR VOLUME LEARNING : Special Repair Requirement "
>> END
Terminals Resistance
5 and 6 Approx. 1 - 15 Ω [at 25 °C (77 °F)]
Page 1749 of 4331
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P2118 THROTTLE CONTROL MOTOR
Description INFOID:0000000004780309
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 conditions via the throt-
tle control motor.
DTC Logic INFOID:0000000004780310
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE YES >> Go to
EC-394, " Diagnosis Procedure " .
NO >> INSPECTION END DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P2118 Throttle control motor
circuit short ECM detects short in both circuits between
ECM and throttle control motor. • Harness or connectors
(Throttle control motor circuit is shorted.)
• Electric throttle control actuator
(Throttle control motor)
Page 1750 of 4331
Ground Inspection " .
Is the inspection result normal? B
Page 1751 of 4331
![NISSAN LATIO 2009 Service Repair Manual P2118 THROTTLE CONTROL MOTOR
EC-395
< COMPONENT DIAGNOSIS >
[HR16DE] C
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YES >> GO TO 2.
NO >> Repair or replace ground connection. 2.
CHECK THROTTLE CONTROL MOTOR OUTPUT NISSAN LATIO 2009 Service Repair Manual P2118 THROTTLE CONTROL MOTOR
EC-395
< COMPONENT DIAGNOSIS >
[HR16DE] C
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YES >> GO TO 2.
NO >> Repair or replace ground connection. 2.
CHECK THROTTLE CONTROL MOTOR OUTPUT](/manual-img/5/57359/w960_57359-1750.png)
P2118 THROTTLE CONTROL MOTOR
EC-395
< COMPONENT DIAGNOSIS >
[HR16DE] C
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YES >> GO TO 2.
NO >> Repair or replace ground connection. 2.
CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
1. Disconnect electric throttle c ontrol actuator harness connector.
2. Disconnect ECM harness connector.
3. Check the continuity between electric throttle control actuator harness connector and ECM harness con-
nector.
4. Also check harness for short to ground and short to power.
Is the inspection result normal? YES >> GO TO 3.
NO >> Repair or replace. 3.
CHECK THROTTLE CONTROL MOTOR
Refer to EC-395, " Component Inspection " .
Is the inspection result normal? YES >> GO TO 4.
NO >> GO TO 5. 4.
CHECK INTERMITTENT INCIDENT
Refer to EC-120, " Diagnosis Procedure " .
Is the inspection result normal? YES >> GO TO 5.
NO >> Repair or replace harness or connectors. 5.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace electric throttle control actuator.
2. Perform EC-396, " Special Repair Requirement " .
>> INSPECTION END
Component Inspection INFOID:00000000048059491.
CHECK THROTTLE CONTROL MOTOR
1. Turn ignition switch OFF.
2. Disconnect electric throttle c ontrol 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 >> GO TO 2. 2.
REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
Electric throttle control actuator ECM
Continuity
Connector Terminal Connector Terminal
F7 5
F10 1 Not existed
4 Existed
6 1 Existed
4 Not existed Terminals Resistance
5 and 6 Approx. 1 - 15 Ω [at 25 °C (77 °F)] PBIB2909E
Page 1752 of 4331
Special Repair Requirement " .
>> INSPECTION END
Special Repair Requirement INFOID:0000000004780462THROTTLE VALVE CLOSED POSITION LE
ARNING : Special Repair Requirement "
>> GO TO 2.
IDLE AIR VOLUME LEARNING : Special Repair Requirement "
>> END