For Mexico
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. The throttle position sensor provides feedback to the ECM, when open/closes the throttle valve in response to driving conditions via the throttle control motor.
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC P2101 is displayed with DTC P2100 or P2119, first perform the trouble diagnosis for DTC P2100
or P2119. Refer to "DTC Logic" Engine Controls or "DTC Logic" Engine Controls.
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 "Diagnosis Procedure" .
NO- INSPECTION END
Diagnosis Procedure
1. CHECK GROUND CONNECTION
1.Turn ignition switch OFF.
2.Check ground connection E21. Refer to Ground Inspection in "Circuit Inspection" Circuit Inspection.
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.
Is the inspection result normal?
YES- GO TO 9.
NO- GO TO 3.
3. CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT
1.Disconnect ECM harness connector.
2.Disconnect IPDM E/R harness connector.
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 5.
NO- GO TO 4.
4. DETECT MALFUNCTION PART
Check the following.
- Harness connectors E7, F121
- 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 MALFUNCTION PART
Check the following.
- Harness connectors E7, F121
- 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 20 A fuse (No. 61) from IPDM E/R. For the fuse number, refer to "Wiring Diagram ENGINE CONTROL SYSTEM -" For Mexico. For the fuse arrangement, refer to "Fuse, Connector and Terminal Arrangement" IPDM E/R.
2.Check it 20 A fuse is blown.
Is the inspection result normal?
YES- GO TO 8.
NO- Replace 20 A fuse.
8. CHECK INTERMITTENT INCIDENT
Refer to "Intermittent Incident" Intermittent Incident.
Is the inspection result normal?
YES- Replace IPDM E/R. Refer to "Removal and Installation" Removal And Installation.
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. Refer to "Removal and Installation" Removal And Installation.
2.Check if foreign matter is caught between the throttle valve (1)
and the housing.
-White arrow indicates : Vehicle front
-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 "Component Inspection" .
Is the inspection result normal?
YES- GO TO 12.
NO- GO TO 13.
12. CHECK INTERMITTENT INCIDENT
Refer to "Intermittent Incident" Intermittent Incident.
Is the inspection result normal?
YES- GO TO 13.
NO- Repair or replace harness or connectors.
13. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
Replace malfunction electric throttle control actuator. Refer to "Removal and Installation" Removal And Installation.
- INSPECTION END
Component Inspection
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 "Removal and Installation" Removal And Installation.
- INSPECTION END