P0120

SYMPTOM
P0120 - THROTTLE POSITION SENSOR SIGNAL CIRCUIT

WHEN MONITORED
Whenever the engine is running.

SET CONDITION
The DTC is set if the throttle angle goes out of range or if throttle angle changes abruptly (i.e.: faster than the throttle body motion should occur).

NOTE: This DTC can also be set by repeatedly stabbing the throttle.

POSSIBLE CAUSES
- RELATED TPS PCM DTC'S PRESENT
- INTERMITTENT WIRING AND CONNECTORS
- TPS VOLTAGE CHANGE NOT SMOOTH
- SENSOR GROUND CIRCUIT OPEN TO TCM
- TPS SIGNAL CIRCUIT OPEN TO TCM
- TCM - THROTTLE POSITION CIRCUIT