DTC P2109: Throttle / Pedal Position Sensor "A" Minimum Stop Performance: Description
The idling speed is controlled by the Electronic Throttle Control System (ETCS).
The ETCS is comprised of a throttle actuator, which operates the throttle valve, and a throttle position sensor, which detects the opening amount of the throttle valve.
The ECM controls the throttle actuator to adjust the throttle valve opening amount so that the idling speed is maintained at the target idling speed.
| DTC No. |
DTC Detection Condition |
Trouble Area |
| P2109 |
Either condition is met:
- With the atmospheric pressure 85 kPa (638 mmHg) or more (elevation 1400 m (4592 ft.) or less), when the engine coolant temperature is 45°C (113°F) or less at engine start, the engine is warmed up and conditions for ISC learning are met, the ISC learning value is approximately 3 times larger than normal even though the mass air flow when idling is normal (5 trip detection logic).
- With the atmospheric pressure 85 kPa (638 mmHg) or more (elevation 1400 m (4592 ft.) or less), when the engine switch has been turned to on (IG) for 1 hour or more, the engine is warmed up, conditions for ISC learning are met and the vehicle has been driven at a speed of 30 km/h (19 mph) or more at least once, the ISC learning value is approximately 3 times larger than normal even though the mass air flow when idling is normal (5 trip detection logic).
|
Throttle body assembly |