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P2101


P2101 ELECTRIC THROTTLE CONTROL FUNCTION





Description
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 feedback to the ECM. ECM controls the throttle valve opening angle in response to driving condition via the throttle control motor.




DTC Logic

DTC DETECTION LOGIC

NOTE:
- If DTC P2101 is displayed with DTC P2100, first perform the trouble diagnosis for DTC P2100. P2100.
- If DTC P2101 is displayed with DTC P2119, first perform the trouble diagnosis for DTC P2119. P2119.






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 SEE Diagnosis Procedure.
NO - INSPECTION END




Wiring Diagram









Diagnosis Procedure
1.CHECK GROUND CONNECTION
1. Turn ignition switch OFF.
2. Check ground connections E15, E24. POWER SUPPLY AND GROUND CIRCUIT.
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.





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, 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.
7.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
Trouble Diagnosis For Intermittent Incident.
Is the inspection result normal?
YES - Replace IPDM E/R. Service and Repair.
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 connector.





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 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.
11.CHECK THROTTLE CONTROL MOTOR
SEE Component Inspection.
Is the inspection result normal?
YES - GO TO 12.
NO - GO TO 13.
12.CHECK INTERMITTENT INCIDENT
Trouble Diagnosis For 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. Exploded View.
2. Perform SEE Special Repair Requirement.
- INSPECTION END




Component Inspection
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 - GO TO 2.
2.REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace electric throttle control actuator. Exploded View.
2. Perform SEE Special Repair Requirement.
- INSPECTION END




Special Repair Requirement
1.PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Special Repair Requirement
- GO TO 2.
2.PERFORM IDLE AIR VOLUME LEARNING
Special Repair Requirement
- END
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