Throttle position sensor: Description

The system has two sensors for throttle position. Signals from the two sensors are compared and must be within a given tolerance.

Two errors can be raised:

• Small discrepancy: in this case it is difficult to identify which sensor is wrong. The system selects the highest one.
• Large discrepancy: a plausibility check is performed using engine speed and mass air flow in order to determine which sensor is providing incorrect information.