P0122

P0122, P0123 TP SENSOR

DTC Logic


DTC DETECTION LOGIC

NOTE:
If DTC P0122 or P0123 is displayed with DTC P0643, first perform the trouble diagnosis for DTC P0643.
Refer to "DTC Logic" P0643.






DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting 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 8 V at idle.
- GO TO 2.

2. PERFORM DTC CONFIRMATION PROCEDURE

1.Start engine and let it idle for 1 second.
2.Check DTC.
Is DTC detected?
YES- Proceed to "Diagnosis Procedure" .
NO- INSPECTION END


Diagnosis Procedure


1. CHECK THROTTLE POSITION SENSOR 2 POWER SUPPLY

1.Disconnect electric throttle control actuator harness connector.
2.Turn ignition switch ON.
3.Check the voltage between electric throttle control actuator harness connector and ground.





Is the inspection result normal?
YES- GO TO 2.
NO- Repair open circuit, short to ground or short to power in harness or connectors.

2. CHECK THROTTLE POSITION SENSOR 2 GROUND CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect ECM harness connector.
3.Check the continuity between electric throttle control actuator harness connector and ECM harness connector.





4.Also check harness for short to ground and short to power.
Is the inspection result normal?
YES- GO TO 3.
NO- Repair open circuit, short to ground or short to power in harness or connectors.

3. CHECK THROTTLE POSITION SENSOR 2 INPUT SIGNAL CIRCUIT

1.Check the continuity between electric throttle control actuator harness connector and ECM harness connector.





2.Also check harness for short to ground and short to power.
Is the inspection result normal?
YES- GO TO 4.
NO- Repair open circuit, short to ground or short to power in harness or connectors.

4. CHECK THROTTLE POSITION SENSOR

Check throttle position sensor. Refer to "Component Inspection" .
Is the inspection result normal?
YES- Check intermittent incident. Refer to "Intermittent Incident" Intermittent Incident.
NO- Replace electric throttle control actuator. Refer to "Removal and Installation" Removal And Installation.


Component Inspection


1. CHECK THROTTLE POSITION SENSOR

1.Turn ignition switch OFF.
2.Reconnect all harness connectors disconnected.
3.Perform "Work Procedure" Work Procedure.
4.Turn ignition switch ON.
5.Set selector lever to D position.
6.Check the voltage between ECM harness connector terminals under the following conditions.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace electric throttle control actuator. Refer to "Removal and Installation" Removal And Installation.